diff --git a/dist/area/index.js b/dist/area/index.js
index 18b1bc05..0fe15630 100644
--- a/dist/area/index.js
+++ b/dist/area/index.js
@@ -1,29 +1,14 @@
 import { VantComponent } from '../common/component';
+import { pickerProps } from '../picker/shared';
 VantComponent({
     classes: ['active-class', 'toolbar-class', 'column-class'],
-    props: {
-        title: String,
-        value: String,
-        loading: Boolean,
-        cancelButtonText: String,
-        confirmButtonText: String,
-        itemHeight: {
-            type: Number,
-            value: 44
-        },
-        visibleItemCount: {
-            type: Number,
-            value: 5
-        },
-        columnsNum: {
-            type: [String, Number],
-            value: 3
-        },
-        areaList: {
+    props: Object.assign({}, pickerProps, { value: String, areaList: {
             type: Object,
             value: {}
-        }
-    },
+        }, columnsNum: {
+            type: [String, Number],
+            value: 3
+        } }),
     data: {
         columns: [{ values: [] }, { values: [] }, { values: [] }],
         displayColumns: [{ values: [] }, { values: [] }, { values: [] }]
@@ -40,6 +25,9 @@ VantComponent({
             });
         }
     },
+    mounted() {
+        this.setValues();
+    },
     methods: {
         getPicker() {
             if (this.picker == null) {
@@ -120,7 +108,6 @@ VantComponent({
             stack.push(picker.setColumnValues(0, province, false));
             stack.push(picker.setColumnValues(1, city, false));
             if (city.length && code.slice(2, 4) === '00') {
-                ;
                 [{ code }] = city;
             }
             stack.push(picker.setColumnValues(2, this.getList('county', code.slice(0, 4)), false));
diff --git a/dist/badge-group/index.js b/dist/badge-group/index.js
index 504f9645..76292337 100644
--- a/dist/badge-group/index.js
+++ b/dist/badge-group/index.js
@@ -1,49 +1,43 @@
 import { VantComponent } from '../common/component';
-import { isNumber } from '../common/utils';
 VantComponent({
     relation: {
         name: 'badge',
         type: 'descendant',
         linked(target) {
             this.badges.push(target);
-            this.setActive();
+            this.setActive(this.data.active);
         },
         unlinked(target) {
             this.badges = this.badges.filter(item => item !== target);
-            this.setActive();
+            this.setActive(this.data.active);
         }
     },
     props: {
         active: {
             type: Number,
-            value: 0
+            value: 0,
+            observer: 'setActive'
         }
     },
-    watch: {
-        active: 'setActive'
-    },
     beforeCreate() {
         this.badges = [];
         this.currentActive = -1;
     },
     methods: {
-        setActive(badge) {
-            let { active } = this.data;
-            const { badges } = this;
-            if (badge && !isNumber(badge)) {
-                active = badges.indexOf(badge);
+        setActive(active) {
+            const { badges, currentActive } = this;
+            if (!badges.length) {
+                return Promise.resolve();
             }
-            if (active === this.currentActive) {
-                return;
-            }
-            if (this.currentActive !== -1 && badges[this.currentActive]) {
-                this.$emit('change', active);
-                badges[this.currentActive].setActive(false);
+            this.currentActive = active;
+            const stack = [];
+            if (currentActive !== active && badges[currentActive]) {
+                stack.push(badges[currentActive].setActive(false));
             }
             if (badges[active]) {
-                badges[active].setActive(true);
-                this.currentActive = active;
+                stack.push(badges[active].setActive(true));
             }
+            return Promise.all(stack);
         }
     }
 });
diff --git a/dist/badge/index.js b/dist/badge/index.js
index 58704dd8..a7c1f4e6 100644
--- a/dist/badge/index.js
+++ b/dist/badge/index.js
@@ -2,7 +2,10 @@ import { VantComponent } from '../common/component';
 VantComponent({
     relation: {
         type: 'ancestor',
-        name: 'badge-group'
+        name: 'badge-group',
+        linked(target) {
+            this.parent = target;
+        }
     },
     props: {
         info: null,
@@ -10,13 +13,18 @@ VantComponent({
     },
     methods: {
         onClick() {
-            const group = this.getRelationNodes('../badge-group/index')[0];
-            if (group) {
-                group.setActive(this);
+            const { parent } = this;
+            if (!parent) {
+                return;
             }
+            const index = parent.badges.indexOf(this);
+            parent.setActive(index).then(() => {
+                this.$emit('click', index);
+                parent.$emit('change', index);
+            });
         },
         setActive(active) {
-            this.set({ active });
+            return this.set({ active });
         }
     }
 });
diff --git a/dist/cell/index.js b/dist/cell/index.js
index ab79c1d3..11cd042f 100644
--- a/dist/cell/index.js
+++ b/dist/cell/index.js
@@ -22,6 +22,7 @@ VantComponent({
         titleWidth: String,
         customStyle: String,
         arrowDirection: String,
+        useLabelSlot: Boolean,
         border: {
             type: Boolean,
             value: true
diff --git a/dist/cell/index.wxml b/dist/cell/index.wxml
index 44f643d8..afaaaf86 100644
--- a/dist/cell/index.wxml
+++ b/dist/cell/index.wxml
@@ -19,11 +19,13 @@
     style="{{ titleWidth ? 'max-width:' + titleWidth + ';min-width:' + titleWidth : '' }}"
     class="van-cell__title title-class"
   >
-    <block wx:if="{{ title }}">
-      {{ title }}
-      <view wx:if="{{ label }}" class="van-cell__label label-class">{{ label }}</view>
-    </block>
+    <block wx:if="{{ title }}">{{ title }}</block>
     <slot wx:else name="title" />
+
+    <view wx:if="{{ label || useLabelSlot }}" class="van-cell__label label-class">
+      <slot wx:if="{{ useLabelSlot }}" name="label" />
+      <block wx:elif="{{ label }}">{{ label }}</block>
+    </view>
   </view>
 
   <view class="van-cell__value value-class">
diff --git a/dist/collapse-item/index.js b/dist/collapse-item/index.js
index e7b726ef..a1cad543 100644
--- a/dist/collapse-item/index.js
+++ b/dist/collapse-item/index.js
@@ -16,6 +16,7 @@ VantComponent({
         icon: String,
         label: String,
         disabled: Boolean,
+        clickable: Boolean,
         border: {
             type: Boolean,
             value: true
diff --git a/dist/collapse-item/index.wxml b/dist/collapse-item/index.wxml
index a3fe5a8f..91afbc2d 100644
--- a/dist/collapse-item/index.wxml
+++ b/dist/collapse-item/index.wxml
@@ -5,9 +5,10 @@
     title="{{ title }}"
     title-class="title-class"
     icon="{{ icon }}"
-    is-link="{{ isLink }}"
     value="{{ value }}"
     label="{{ label }}"
+    is-link="{{ isLink }}"
+    clickable="{{ clickable }}"
     border="{{ border && expanded }}"
     class="{{ utils.bem('collapse-item__title', { disabled, expanded }) }}"
     right-icon-class="van-cell__right-icon"
diff --git a/dist/collapse/index.js b/dist/collapse/index.js
index 87bf6d56..c6efb6ab 100644
--- a/dist/collapse/index.js
+++ b/dist/collapse/index.js
@@ -5,6 +5,9 @@ VantComponent({
         type: 'descendant',
         linked(child) {
             this.children.push(child);
+        },
+        unlinked(child) {
+            this.children = this.children.filter((item) => item !== child);
         }
     },
     props: {
diff --git a/dist/datetime-picker/index.js b/dist/datetime-picker/index.js
index d4f27062..5b256b88 100644
--- a/dist/datetime-picker/index.js
+++ b/dist/datetime-picker/index.js
@@ -1,5 +1,6 @@
 import { VantComponent } from '../common/component';
 import { isDef } from '../common/utils';
+import { pickerProps } from '../picker/shared';
 const currentYear = new Date().getFullYear();
 function isValidDate(date) {
     return isDef(date) && !isNaN(new Date(date).getTime());
@@ -29,60 +30,37 @@ function getTrueValue(formattedValue) {
 function getMonthEndDay(year, month) {
     return 32 - new Date(year, month - 1, 32).getDate();
 }
+const defaultFormatter = (_, value) => value;
 VantComponent({
-    props: {
-        value: null,
-        title: String,
-        loading: Boolean,
-        itemHeight: {
-            type: Number,
-            value: 44
-        },
-        visibleItemCount: {
-            type: Number,
-            value: 5
-        },
-        confirmButtonText: {
-            type: String,
-            value: '确认'
-        },
-        cancelButtonText: {
-            type: String,
-            value: '取消'
-        },
-        type: {
+    classes: ['active-class', 'toolbar-class', 'column-class'],
+    props: Object.assign({}, pickerProps, { formatter: {
+            type: Function,
+            value: defaultFormatter
+        }, value: null, type: {
             type: String,
             value: 'datetime'
-        },
-        showToolbar: {
+        }, showToolbar: {
             type: Boolean,
             value: true
-        },
-        minDate: {
+        }, minDate: {
             type: Number,
             value: new Date(currentYear - 10, 0, 1).getTime()
-        },
-        maxDate: {
+        }, maxDate: {
             type: Number,
             value: new Date(currentYear + 10, 11, 31).getTime()
-        },
-        minHour: {
+        }, minHour: {
             type: Number,
             value: 0
-        },
-        maxHour: {
+        }, maxHour: {
             type: Number,
             value: 23
-        },
-        minMinute: {
+        }, minMinute: {
             type: Number,
             value: 0
-        },
-        maxMinute: {
+        }, maxMinute: {
             type: Number,
             value: 59
-        }
-    },
+        } }),
     data: {
         innerValue: Date.now(),
         columns: []
@@ -107,18 +85,19 @@ VantComponent({
     methods: {
         getPicker() {
             if (this.picker == null) {
-                const picker = this.picker = this.selectComponent('.van-datetime-picker');
+                const picker = (this.picker = this.selectComponent('.van-datetime-picker'));
                 const { setColumnValues } = picker;
                 picker.setColumnValues = (...args) => setColumnValues.apply(picker, [...args, false]);
             }
             return this.picker;
         },
         updateColumns() {
+            const { formatter = defaultFormatter } = this.data;
             const results = this.getRanges().map(({ type, range }, index) => {
                 const values = times(range[1] - range[0] + 1, index => {
                     let value = range[0] + index;
                     value = type === 'year' ? `${value}` : padZero(value);
-                    return value;
+                    return formatter(type, value);
                 });
                 return { values };
             });
@@ -265,20 +244,26 @@ VantComponent({
         },
         updateColumnValue(value) {
             let values = [];
-            const { data } = this;
+            const { type, formatter = defaultFormatter } = this.data;
             const picker = this.getPicker();
-            if (data.type === 'time') {
+            if (type === 'time') {
                 const pair = value.split(':');
-                values = [pair[0], pair[1]];
+                values = [
+                    formatter('hour', pair[0]),
+                    formatter('minute', pair[1])
+                ];
             }
             else {
                 const date = new Date(value);
-                values = [`${date.getFullYear()}`, padZero(date.getMonth() + 1)];
-                if (data.type === 'date') {
-                    values.push(padZero(date.getDate()));
+                values = [
+                    formatter('year', `${date.getFullYear()}`),
+                    formatter('month', padZero(date.getMonth() + 1))
+                ];
+                if (type === 'date') {
+                    values.push(formatter('day', padZero(date.getDate())));
                 }
-                if (data.type === 'datetime') {
-                    values.push(padZero(date.getDate()), padZero(date.getHours()), padZero(date.getMinutes()));
+                if (type === 'datetime') {
+                    values.push(formatter('day', padZero(date.getDate())), formatter('hour', padZero(date.getHours())), formatter('minute', padZero(date.getMinutes())));
                 }
             }
             return this.set({ innerValue: value })
diff --git a/dist/datetime-picker/index.wxml b/dist/datetime-picker/index.wxml
index 13a1b478..ade22024 100644
--- a/dist/datetime-picker/index.wxml
+++ b/dist/datetime-picker/index.wxml
@@ -1,5 +1,8 @@
 <van-picker
   class="van-datetime-picker"
+  active-class="active-class"
+  toolbar-class="toolbar-class"
+  column-class="column-class"
   title="{{ title }}"
   columns="{{ columns }}"
   item-height="{{ itemHeight }}"
diff --git a/dist/field/index.js b/dist/field/index.js
index b465e17e..55420fbe 100644
--- a/dist/field/index.js
+++ b/dist/field/index.js
@@ -1,7 +1,7 @@
 import { VantComponent } from '../common/component';
 VantComponent({
     field: true,
-    classes: ['input-class'],
+    classes: ['input-class', 'right-icon-class'],
     props: {
         size: String,
         icon: String,
@@ -12,6 +12,7 @@ VantComponent({
         center: Boolean,
         isLink: Boolean,
         leftIcon: String,
+        rightIcon: String,
         disabled: Boolean,
         autosize: Boolean,
         readonly: Boolean,
@@ -26,8 +27,6 @@ VantComponent({
         errorMessage: String,
         placeholder: String,
         customStyle: String,
-        useIconSlot: Boolean,
-        useButtonSlot: Boolean,
         showConfirmBar: {
             type: Boolean,
             value: true
diff --git a/dist/field/index.wxml b/dist/field/index.wxml
index afaca58d..06e45941 100644
--- a/dist/field/index.wxml
+++ b/dist/field/index.wxml
@@ -24,9 +24,6 @@
       disabled="{{ disabled || readonly }}"
       maxlength="{{ maxlength }}"
       auto-height="{{ autosize }}"
-      placeholder="{{ placeholder }}"
-      placeholder-style="{{ placeholderStyle }}"
-      placeholder-class="{{ error ? 'van-field__input--error' : 'van-field__placeholder' }}"
       cursor-spacing="{{ cursorSpacing }}"
       adjust-position="{{ adjustPosition }}"
       show-confirm-bar="{{ showConfirmBar }}"
@@ -34,7 +31,11 @@
       bind:blur="onBlur"
       bind:focus="onFocus"
       bind:confirm="onConfirm"
-    />
+    >
+      <view wx:if="{{ value == null || value.length === 0 }}" style="{{ placeholderStyle }}" class="{{ utils.bem('field__placeholder', { error }) }}">
+        {{ placeholder }}
+      </view>
+    </textarea>
     <input
       wx:else
       class="input-class {{ utils.bem('field__input', [inputAlign, { disabled, error }]) }}"
@@ -45,7 +46,7 @@
       maxlength="{{ maxlength }}"
       placeholder="{{ placeholder }}"
       placeholder-style="{{ placeholderStyle }}"
-      placeholder-class="{{ error ? 'van-field__input--error' : 'van-field__placeholder' }}"
+      placeholder-class="{{ error ? 'van-field__placeholder--error' : 'van-field__placeholder' }}"
       confirm-type="{{ confirmType }}"
       confirm-hold="{{ confirmHold }}"
       cursor-spacing="{{ cursorSpacing }}"
@@ -59,20 +60,21 @@
       wx:if="{{ showClear }}"
       size="16px"
       name="clear"
-      class="van-field__clear-root"
-      custom-class="van-field__clear"
-      bind:touchstart="onClear"
+      class="van-field__clear-root van-field__icon-root"
+      bindtouchstart="onClear"
     />
-    <view class="van-field__icon-container" wx:if="{{ icon || useIconSlot }}" bind:tap="onClickIcon">
+    <view class="van-field__icon-container" bind:tap="onClickIcon">
       <van-icon
-        wx:if="{{ icon }}"
+        wx:if="{{ rightIcon || icon }}"
         size="16px"
-        name="{{ icon }}"
-        custom-class="van-field__icon {{ iconClass }}"
+        name="{{ rightIcon || icon }}"
+        class="van-field__icon-root {{ iconClass }}"
+        custom-class="right-icon-class"
       />
-      <slot wx:else name="icon" />
+      <slot name="right-icon" />
+      <slot name="icon" />
     </view>
-    <view wx:if="{{ useButtonSlot }}" class="van-field__button">
+    <view class="van-field__button">
       <slot name="button" />
     </view>
   </view>
diff --git a/dist/field/index.wxss b/dist/field/index.wxss
index 99ac1dcb..97945748 100644
--- a/dist/field/index.wxss
+++ b/dist/field/index.wxss
@@ -1 +1 @@
-@import '../common/index.wxss';.van-field__body{display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center}.van-field__body--textarea{min-height:24px}.van-field__input{display:block;width:100%;height:24px;min-height:24px;padding:0;margin:0;line-height:inherit;color:#333;text-align:left;background-color:initial;border:0;box-sizing:border-box;resize:none}.van-field__input--disabled{color:#999;background-color:initial;opacity:1}.van-field__input--center{text-align:center}.van-field__input--right{text-align:right}.van-field__input--error{color:#f44}.van-field__placeholder{color:#999}.van-field__clear-root{display:-webkit-flex;display:flex;height:24px;-webkit-align-items:center;align-items:center}.van-field__button,.van-field__clear,.van-field__icon-container{-webkit-flex-shrink:0;flex-shrink:0}.van-field__clear,.van-field__icon-container{padding:0 10px;margin-right:-10px;line-height:inherit;vertical-align:middle}.van-field__clear{color:#c9c9c9}.van-field__icon-container{color:#999}.van-field__icon{display:block!important}.van-field__button{padding-left:10px}.van-field__error-message{font-size:12px;color:#f44;text-align:left}.van-field__error--center{text-align:center}.van-field__error--right{text-align:right}
\ No newline at end of file
+@import '../common/index.wxss';.van-field__body{display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center}.van-field__body--textarea{min-height:24px}.van-field__input{position:relative;display:block;width:100%;height:24px;min-height:24px;padding:0;margin:0;line-height:inherit;color:#333;text-align:left;background-color:initial;border:0;box-sizing:border-box;resize:none}.van-field__input--disabled{color:#999;background-color:initial;opacity:1}.van-field__input--center{text-align:center}.van-field__input--right{text-align:right}.van-field__placeholder{position:absolute;top:0;left:0;color:#999;pointer-events:none}.van-field__placeholder--error{color:#f44}.van-field__icon-root{display:-webkit-flex;display:flex;min-height:24px;-webkit-align-items:center;align-items:center}.van-field__clear-root,.van-field__icon-container{padding:0 10px;margin-right:-10px;line-height:inherit;vertical-align:middle}.van-field__button,.van-field__clear-root,.van-field__icon-container{-webkit-flex-shrink:0;flex-shrink:0}.van-field__clear-root{color:#c9c9c9}.van-field__icon-container{color:#999}.van-field__icon-container:empty{display:none}.van-field__button{padding-left:10px}.van-field__button:empty{display:none}.van-field__error-message{font-size:12px;color:#f44;text-align:left}.van-field__error-message--center{text-align:center}.van-field__error-message--right{text-align:right}
\ No newline at end of file
diff --git a/dist/icon/index.wxss b/dist/icon/index.wxss
index 5a4ec661..9ea0d2a0 100644
--- a/dist/icon/index.wxss
+++ b/dist/icon/index.wxss
@@ -1 +1 @@
-@import '../common/index.wxss';@font-face{font-style:normal;font-weight:400;font-family:vant-icon;src:url(https://img.yzcdn.cn/vant/vant-icon-29f643.woff2) format("woff2"),url(https://img.yzcdn.cn/vant/vant-icon-29f643.woff) format("woff"),url(https://img.yzcdn.cn/vant/vant-icon-29f643.ttf) format("truetype")}.van-icon{position:relative;font:normal normal normal 14px/1 vant-icon;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased}.van-icon,.van-icon:before{display:inline-block}.van-icon-add-o:before{content:"\F000"}.van-icon-add-square:before{content:"\F001"}.van-icon-add:before{content:"\F002"}.van-icon-after-sale:before{content:"\F003"}.van-icon-aim:before{content:"\F004"}.van-icon-alipay:before{content:"\F005"}.van-icon-apps-o:before{content:"\F006"}.van-icon-arrow-down:before{content:"\F007"}.van-icon-arrow-left:before{content:"\F008"}.van-icon-arrow-up:before{content:"\F009"}.van-icon-arrow:before{content:"\F00A"}.van-icon-ascending:before{content:"\F00B"}.van-icon-audio:before{content:"\F00C"}.van-icon-award-o:before{content:"\F00D"}.van-icon-award:before{content:"\F00E"}.van-icon-bag-o:before{content:"\F00F"}.van-icon-bag:before{content:"\F010"}.van-icon-balance-list-o:before{content:"\F011"}.van-icon-balance-list:before{content:"\F012"}.van-icon-balance-o:before{content:"\F013"}.van-icon-balance-pay:before{content:"\F014"}.van-icon-bar-chart-o:before{content:"\F015"}.van-icon-bars:before{content:"\F016"}.van-icon-bell:before{content:"\F017"}.van-icon-bill-o:before{content:"\F018"}.van-icon-bill:before{content:"\F019"}.van-icon-birthday-cake-o:before{content:"\F01A"}.van-icon-bookmark-o:before{content:"\F01B"}.van-icon-bookmark:before{content:"\F01C"}.van-icon-browsing-history-o:before{content:"\F01D"}.van-icon-browsing-history:before{content:"\F01E"}.van-icon-brush-o:before{content:"\F01F"}.van-icon-bulb-o:before{content:"\F020"}.van-icon-bullhorn-o:before{content:"\F021"}.van-icon-calender-o:before{content:"\F022"}.van-icon-card:before{content:"\F023"}.van-icon-cart-circle-o:before{content:"\F024"}.van-icon-cart-circle:before{content:"\F025"}.van-icon-cart-o:before{content:"\F026"}.van-icon-cart:before{content:"\F027"}.van-icon-cash-back-record:before{content:"\F028"}.van-icon-cash-on-deliver:before{content:"\F029"}.van-icon-cashier-o:before{content:"\F02A"}.van-icon-certificate:before{content:"\F02B"}.van-icon-chart-trending-o:before{content:"\F02C"}.van-icon-chat-o:before{content:"\F02D"}.van-icon-chat:before{content:"\F02E"}.van-icon-checked:before{content:"\F02F"}.van-icon-circle:before{content:"\F030"}.van-icon-clear:before{content:"\F031"}.van-icon-clock-o:before{content:"\F032"}.van-icon-clock:before{content:"\F033"}.van-icon-close:before{content:"\F034"}.van-icon-closed-eye:before{content:"\F035"}.van-icon-cluster-o:before{content:"\F036"}.van-icon-cluster:before{content:"\F037"}.van-icon-column:before{content:"\F038"}.van-icon-comment-circle-o:before{content:"\F039"}.van-icon-comment-o:before{content:"\F03A"}.van-icon-comment:before{content:"\F03B"}.van-icon-completed:before{content:"\F03C"}.van-icon-contact:before{content:"\F03D"}.van-icon-coupon-o:before{content:"\F03E"}.van-icon-coupon:before{content:"\F03F"}.van-icon-credit-pay:before{content:"\F040"}.van-icon-cross:before{content:"\F041"}.van-icon-debit-pay:before{content:"\F042"}.van-icon-delete:before{content:"\F043"}.van-icon-descending:before{content:"\F044"}.van-icon-description:before{content:"\F045"}.van-icon-desktop-o:before{content:"\F046"}.van-icon-diamond-o:before{content:"\F047"}.van-icon-diamond:before{content:"\F048"}.van-icon-discount:before{content:"\F049"}.van-icon-ecard-pay:before{content:"\F04A"}.van-icon-edit:before{content:"\F04B"}.van-icon-ellipsis:before{content:"\F04C"}.van-icon-empty:before{content:"\F04D"}.van-icon-envelop-o:before{content:"\F04E"}.van-icon-exchange:before{content:"\F04F"}.van-icon-expand-o:before{content:"\F050"}.van-icon-expand:before{content:"\F051"}.van-icon-eye-o:before{content:"\F052"}.van-icon-eye:before{content:"\F053"}.van-icon-fail:before{content:"\F054"}.van-icon-failure:before{content:"\F055"}.van-icon-filter-o:before{content:"\F056"}.van-icon-fire-o:before{content:"\F057"}.van-icon-fire:before{content:"\F058"}.van-icon-flag-o:before{content:"\F059"}.van-icon-flower-o:before{content:"\F05A"}.van-icon-free-postage:before{content:"\F05B"}.van-icon-friends-o:before{content:"\F05C"}.van-icon-friends:before{content:"\F05D"}.van-icon-gem-o:before{content:"\F05E"}.van-icon-gem:before{content:"\F05F"}.van-icon-gift-card-o:before{content:"\F060"}.van-icon-gift-card:before{content:"\F061"}.van-icon-gift-o:before{content:"\F062"}.van-icon-gift:before{content:"\F063"}.van-icon-gold-coin-o:before{content:"\F064"}.van-icon-gold-coin:before{content:"\F065"}.van-icon-goods-collect-o:before{content:"\F066"}.van-icon-goods-collect:before{content:"\F067"}.van-icon-graphic:before{content:"\F068"}.van-icon-home-o:before{content:"\F069"}.van-icon-hot-o:before{content:"\F06A"}.van-icon-hot-sale-o:before{content:"\F06B"}.van-icon-hot-sale:before{content:"\F06C"}.van-icon-hot:before{content:"\F06D"}.van-icon-hotel-o:before{content:"\F06E"}.van-icon-idcard:before{content:"\F06F"}.van-icon-info-o:before{content:"\F070"}.van-icon-info:before{content:"\F071"}.van-icon-invition:before{content:"\F072"}.van-icon-label-o:before{content:"\F073"}.van-icon-label:before{content:"\F074"}.van-icon-like-o:before{content:"\F075"}.van-icon-like:before{content:"\F076"}.van-icon-live:before{content:"\F077"}.van-icon-location-o:before{content:"\F078"}.van-icon-location:before{content:"\F079"}.van-icon-lock:before{content:"\F07A"}.van-icon-logistics:before{content:"\F07B"}.van-icon-manager-o:before{content:"\F07C"}.van-icon-manager:before{content:"\F07D"}.van-icon-map-marked:before{content:"\F07E"}.van-icon-medel-o:before{content:"\F07F"}.van-icon-medel:before{content:"\F080"}.van-icon-more-o:before{content:"\F081"}.van-icon-more:before{content:"\F082"}.van-icon-music-o:before{content:"\F083"}.van-icon-new-arrival-o:before{content:"\F084"}.van-icon-new-arrival:before{content:"\F085"}.van-icon-new-o:before{content:"\F086"}.van-icon-new:before{content:"\F087"}.van-icon-newspaper-o:before{content:"\F088"}.van-icon-notes-o:before{content:"\F089"}.van-icon-orders-o:before{content:"\F08A"}.van-icon-other-pay:before{content:"\F08B"}.van-icon-paid:before{content:"\F08C"}.van-icon-passed:before{content:"\F08D"}.van-icon-pause-circle-o:before{content:"\F08E"}.van-icon-pause-circle:before{content:"\F08F"}.van-icon-pause:before{content:"\F090"}.van-icon-peer-pay:before{content:"\F091"}.van-icon-pending-payment:before{content:"\F092"}.van-icon-phone-circle-o:before{content:"\F093"}.van-icon-phone-o:before{content:"\F094"}.van-icon-phone:before{content:"\F095"}.van-icon-photo-o:before{content:"\F096"}.van-icon-photo:before{content:"\F097"}.van-icon-photograph:before{content:"\F098"}.van-icon-play-circle-o:before{content:"\F099"}.van-icon-play-circle:before{content:"\F09A"}.van-icon-play:before{content:"\F09B"}.van-icon-plus:before{content:"\F09C"}.van-icon-point-gift-o:before{content:"\F09D"}.van-icon-point-gift:before{content:"\F09E"}.van-icon-points:before{content:"\F09F"}.van-icon-printer:before{content:"\F0A0"}.van-icon-qr-invalid:before{content:"\F0A1"}.van-icon-qr:before{content:"\F0A2"}.van-icon-question-o:before{content:"\F0A3"}.van-icon-question:before{content:"\F0A4"}.van-icon-records:before{content:"\F0A5"}.van-icon-refund-o:before{content:"\F0A6"}.van-icon-replay:before{content:"\F0A7"}.van-icon-scan:before{content:"\F0A8"}.van-icon-search:before{content:"\F0A9"}.van-icon-send-gift-o:before{content:"\F0AA"}.van-icon-send-gift:before{content:"\F0AB"}.van-icon-service-o:before{content:"\F0AC"}.van-icon-service:before{content:"\F0AD"}.van-icon-setting-o:before{content:"\F0AE"}.van-icon-setting:before{content:"\F0AF"}.van-icon-share:before{content:"\F0B0"}.van-icon-shop-collect-o:before{content:"\F0B1"}.van-icon-shop-collect:before{content:"\F0B2"}.van-icon-shop-o:before{content:"\F0B3"}.van-icon-shop:before{content:"\F0B4"}.van-icon-shopping-cart-o:before{content:"\F0B5"}.van-icon-shopping-cart:before{content:"\F0B6"}.van-icon-shrink:before{content:"\F0B7"}.van-icon-sign:before{content:"\F0B8"}.van-icon-smile-comment-o:before{content:"\F0B9"}.van-icon-smile-comment:before{content:"\F0BA"}.van-icon-smile-o:before{content:"\F0BB"}.van-icon-star-o:before{content:"\F0BC"}.van-icon-star:before{content:"\F0BD"}.van-icon-stop-circle-o:before{content:"\F0BE"}.van-icon-stop-circle:before{content:"\F0BF"}.van-icon-stop:before{content:"\F0C0"}.van-icon-success:before{content:"\F0C1"}.van-icon-thumb-circle-o:before{content:"\F0C2"}.van-icon-todo-list-o:before{content:"\F0C3"}.van-icon-todo-list:before{content:"\F0C4"}.van-icon-tosend:before{content:"\F0C5"}.van-icon-tv-o:before{content:"\F0C6"}.van-icon-umbrella-circle:before{content:"\F0C7"}.van-icon-underway-o:before{content:"\F0C8"}.van-icon-underway:before{content:"\F0C9"}.van-icon-upgrade:before{content:"\F0CA"}.van-icon-user-circle-o:before{content:"\F0CB"}.van-icon-user-o:before{content:"\F0CC"}.van-icon-video-o:before{content:"\F0CD"}.van-icon-video:before{content:"\F0CE"}.van-icon-vip-card-o:before{content:"\F0CF"}.van-icon-vip-card:before{content:"\F0D0"}.van-icon-volume-o:before{content:"\F0D1"}.van-icon-volume:before{content:"\F0D2"}.van-icon-wap-home:before{content:"\F0D3"}.van-icon-wap-nav:before{content:"\F0D4"}.van-icon-warn-o:before{content:"\F0D5"}.van-icon-warning-o:before{content:"\F0D6"}.van-icon-weapp-nav:before{content:"\F0D7"}.van-icon-wechat:before{content:"\F0D8"}.van-icon-youzan-shield:before{content:"\F0D9"}.van-icon--image{width:1em;height:1em}.van-icon__image{position:absolute;top:0;right:0;bottom:0;left:0;max-width:100%;max-height:100%;margin:auto}.van-icon__info{z-index:1}
\ No newline at end of file
+@import '../common/index.wxss';@font-face{font-style:normal;font-weight:400;font-family:vant-icon;src:url(https://img.yzcdn.cn/vant/vant-icon-6bbd30.woff2) format("woff2"),url(https://img.yzcdn.cn/vant/vant-icon-6bbd30.woff) format("woff"),url(https://img.yzcdn.cn/vant/vant-icon-6bbd30.ttf) format("truetype")}.van-icon{position:relative;font:normal normal normal 14px/1 vant-icon;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased}.van-icon,.van-icon:before{display:inline-block}.van-icon-add-o:before{content:"\F000"}.van-icon-add-square:before{content:"\F001"}.van-icon-add:before{content:"\F002"}.van-icon-after-sale:before{content:"\F003"}.van-icon-aim:before{content:"\F004"}.van-icon-alipay:before{content:"\F005"}.van-icon-apps-o:before{content:"\F006"}.van-icon-arrow-down:before{content:"\F007"}.van-icon-arrow-left:before{content:"\F008"}.van-icon-arrow-up:before{content:"\F009"}.van-icon-arrow:before{content:"\F00A"}.van-icon-ascending:before{content:"\F00B"}.van-icon-audio:before{content:"\F00C"}.van-icon-award-o:before{content:"\F00D"}.van-icon-award:before{content:"\F00E"}.van-icon-bag-o:before{content:"\F00F"}.van-icon-bag:before{content:"\F010"}.van-icon-balance-list-o:before{content:"\F011"}.van-icon-balance-list:before{content:"\F012"}.van-icon-balance-o:before{content:"\F013"}.van-icon-balance-pay:before{content:"\F014"}.van-icon-bar-chart-o:before{content:"\F015"}.van-icon-bars:before{content:"\F016"}.van-icon-bell:before{content:"\F017"}.van-icon-bill-o:before{content:"\F018"}.van-icon-bill:before{content:"\F019"}.van-icon-birthday-cake-o:before{content:"\F01A"}.van-icon-bookmark-o:before{content:"\F01B"}.van-icon-bookmark:before{content:"\F01C"}.van-icon-browsing-history-o:before{content:"\F01D"}.van-icon-browsing-history:before{content:"\F01E"}.van-icon-brush-o:before{content:"\F01F"}.van-icon-bulb-o:before{content:"\F020"}.van-icon-bullhorn-o:before{content:"\F021"}.van-icon-calender-o:before{content:"\F022"}.van-icon-card:before{content:"\F023"}.van-icon-cart-circle-o:before{content:"\F024"}.van-icon-cart-circle:before{content:"\F025"}.van-icon-cart-o:before{content:"\F026"}.van-icon-cart:before{content:"\F027"}.van-icon-cash-back-record:before{content:"\F028"}.van-icon-cash-on-deliver:before{content:"\F029"}.van-icon-cashier-o:before{content:"\F02A"}.van-icon-certificate:before{content:"\F02B"}.van-icon-chart-trending-o:before{content:"\F02C"}.van-icon-chat-o:before{content:"\F02D"}.van-icon-chat:before{content:"\F02E"}.van-icon-checked:before{content:"\F02F"}.van-icon-circle:before{content:"\F030"}.van-icon-clear:before{content:"\F031"}.van-icon-clock-o:before{content:"\F032"}.van-icon-clock:before{content:"\F033"}.van-icon-close:before{content:"\F034"}.van-icon-closed-eye:before{content:"\F035"}.van-icon-cluster-o:before{content:"\F036"}.van-icon-cluster:before{content:"\F037"}.van-icon-column:before{content:"\F038"}.van-icon-comment-circle-o:before{content:"\F039"}.van-icon-comment-o:before{content:"\F03A"}.van-icon-comment:before{content:"\F03B"}.van-icon-completed:before{content:"\F03C"}.van-icon-contact:before{content:"\F03D"}.van-icon-coupon-o:before{content:"\F03E"}.van-icon-coupon:before{content:"\F03F"}.van-icon-credit-pay:before{content:"\F040"}.van-icon-cross:before{content:"\F041"}.van-icon-debit-pay:before{content:"\F042"}.van-icon-delete:before{content:"\F043"}.van-icon-descending:before{content:"\F044"}.van-icon-description:before{content:"\F045"}.van-icon-desktop-o:before{content:"\F046"}.van-icon-diamond-o:before{content:"\F047"}.van-icon-diamond:before{content:"\F048"}.van-icon-discount:before{content:"\F049"}.van-icon-ecard-pay:before{content:"\F04A"}.van-icon-edit:before{content:"\F04B"}.van-icon-ellipsis:before{content:"\F04C"}.van-icon-empty:before{content:"\F04D"}.van-icon-envelop-o:before{content:"\F04E"}.van-icon-exchange:before{content:"\F04F"}.van-icon-expand-o:before{content:"\F050"}.van-icon-expand:before{content:"\F051"}.van-icon-eye-o:before{content:"\F052"}.van-icon-eye:before{content:"\F053"}.van-icon-fail:before{content:"\F054"}.van-icon-failure:before{content:"\F055"}.van-icon-filter-o:before{content:"\F056"}.van-icon-fire-o:before{content:"\F057"}.van-icon-fire:before{content:"\F058"}.van-icon-flag-o:before{content:"\F059"}.van-icon-flower-o:before{content:"\F05A"}.van-icon-free-postage:before{content:"\F05B"}.van-icon-friends-o:before{content:"\F05C"}.van-icon-friends:before{content:"\F05D"}.van-icon-gem-o:before{content:"\F05E"}.van-icon-gem:before{content:"\F05F"}.van-icon-gift-card-o:before{content:"\F060"}.van-icon-gift-card:before{content:"\F061"}.van-icon-gift-o:before{content:"\F062"}.van-icon-gift:before{content:"\F063"}.van-icon-gold-coin-o:before{content:"\F064"}.van-icon-gold-coin:before{content:"\F065"}.van-icon-goods-collect-o:before{content:"\F066"}.van-icon-goods-collect:before{content:"\F067"}.van-icon-graphic:before{content:"\F068"}.van-icon-home-o:before{content:"\F069"}.van-icon-hot-o:before{content:"\F06A"}.van-icon-hot-sale-o:before{content:"\F06B"}.van-icon-hot-sale:before{content:"\F06C"}.van-icon-hot:before{content:"\F06D"}.van-icon-hotel-o:before{content:"\F06E"}.van-icon-idcard:before{content:"\F06F"}.van-icon-info-o:before{content:"\F070"}.van-icon-info:before{content:"\F071"}.van-icon-invition:before{content:"\F072"}.van-icon-label-o:before{content:"\F073"}.van-icon-label:before{content:"\F074"}.van-icon-like-o:before{content:"\F075"}.van-icon-like:before{content:"\F076"}.van-icon-live:before{content:"\F077"}.van-icon-location-o:before{content:"\F078"}.van-icon-location:before{content:"\F079"}.van-icon-lock:before{content:"\F07A"}.van-icon-logistics:before{content:"\F07B"}.van-icon-manager-o:before{content:"\F07C"}.van-icon-manager:before{content:"\F07D"}.van-icon-map-marked:before{content:"\F07E"}.van-icon-medel-o:before{content:"\F07F"}.van-icon-medel:before{content:"\F080"}.van-icon-more-o:before{content:"\F081"}.van-icon-more:before{content:"\F082"}.van-icon-music-o:before{content:"\F083"}.van-icon-new-arrival-o:before{content:"\F084"}.van-icon-new-arrival:before{content:"\F085"}.van-icon-new-o:before{content:"\F086"}.van-icon-new:before{content:"\F087"}.van-icon-newspaper-o:before{content:"\F088"}.van-icon-notes-o:before{content:"\F089"}.van-icon-orders-o:before{content:"\F08A"}.van-icon-other-pay:before{content:"\F08B"}.van-icon-paid:before{content:"\F08C"}.van-icon-passed:before{content:"\F08D"}.van-icon-pause-circle-o:before{content:"\F08E"}.van-icon-pause-circle:before{content:"\F08F"}.van-icon-pause:before{content:"\F090"}.van-icon-peer-pay:before{content:"\F091"}.van-icon-pending-payment:before{content:"\F092"}.van-icon-phone-circle-o:before{content:"\F093"}.van-icon-phone-o:before{content:"\F094"}.van-icon-phone:before{content:"\F095"}.van-icon-photo-o:before{content:"\F096"}.van-icon-photo:before{content:"\F097"}.van-icon-photograph:before{content:"\F098"}.van-icon-play-circle-o:before{content:"\F099"}.van-icon-play-circle:before{content:"\F09A"}.van-icon-play:before{content:"\F09B"}.van-icon-plus:before{content:"\F09C"}.van-icon-point-gift-o:before{content:"\F09D"}.van-icon-point-gift:before{content:"\F09E"}.van-icon-points:before{content:"\F09F"}.van-icon-printer:before{content:"\F0A0"}.van-icon-qr-invalid:before{content:"\F0A1"}.van-icon-qr:before{content:"\F0A2"}.van-icon-question-o:before{content:"\F0A3"}.van-icon-question:before{content:"\F0A4"}.van-icon-records:before{content:"\F0A5"}.van-icon-refund-o:before{content:"\F0A6"}.van-icon-replay:before{content:"\F0A7"}.van-icon-scan:before{content:"\F0A8"}.van-icon-search:before{content:"\F0A9"}.van-icon-send-gift-o:before{content:"\F0AA"}.van-icon-send-gift:before{content:"\F0AB"}.van-icon-service-o:before{content:"\F0AC"}.van-icon-service:before{content:"\F0AD"}.van-icon-setting-o:before{content:"\F0AE"}.van-icon-setting:before{content:"\F0AF"}.van-icon-share:before{content:"\F0B0"}.van-icon-shop-collect-o:before{content:"\F0B1"}.van-icon-shop-collect:before{content:"\F0B2"}.van-icon-shop-o:before{content:"\F0B3"}.van-icon-shop:before{content:"\F0B4"}.van-icon-shopping-cart-o:before{content:"\F0B5"}.van-icon-shopping-cart:before{content:"\F0B6"}.van-icon-shrink:before{content:"\F0B7"}.van-icon-sign:before{content:"\F0B8"}.van-icon-smile-comment-o:before{content:"\F0B9"}.van-icon-smile-comment:before{content:"\F0BA"}.van-icon-smile-o:before{content:"\F0BB"}.van-icon-star-o:before{content:"\F0BC"}.van-icon-star:before{content:"\F0BD"}.van-icon-stop-circle-o:before{content:"\F0BE"}.van-icon-stop-circle:before{content:"\F0BF"}.van-icon-stop:before{content:"\F0C0"}.van-icon-success:before{content:"\F0C1"}.van-icon-thumb-circle-o:before{content:"\F0C2"}.van-icon-todo-list-o:before{content:"\F0C3"}.van-icon-todo-list:before{content:"\F0C4"}.van-icon-tosend:before{content:"\F0C5"}.van-icon-tv-o:before{content:"\F0C6"}.van-icon-umbrella-circle:before{content:"\F0C7"}.van-icon-underway-o:before{content:"\F0C8"}.van-icon-underway:before{content:"\F0C9"}.van-icon-upgrade:before{content:"\F0CA"}.van-icon-user-circle-o:before{content:"\F0CB"}.van-icon-user-o:before{content:"\F0CC"}.van-icon-video-o:before{content:"\F0CD"}.van-icon-video:before{content:"\F0CE"}.van-icon-vip-card-o:before{content:"\F0CF"}.van-icon-vip-card:before{content:"\F0D0"}.van-icon-volume-o:before{content:"\F0D1"}.van-icon-volume:before{content:"\F0D2"}.van-icon-wap-home:before{content:"\F0D3"}.van-icon-wap-nav:before{content:"\F0D4"}.van-icon-warn-o:before{content:"\F0D5"}.van-icon-warning-o:before{content:"\F0D6"}.van-icon-weapp-nav:before{content:"\F0D7"}.van-icon-wechat:before{content:"\F0D8"}.van-icon-youzan-shield:before{content:"\F0D9"}.van-icon--image{width:1em;height:1em}.van-icon__image{position:absolute;top:0;right:0;bottom:0;left:0;max-width:100%;max-height:100%;margin:auto}.van-icon__info{z-index:1}
\ No newline at end of file
diff --git a/dist/notify/index.js b/dist/notify/index.js
index 38445dbc..5de21af7 100644
--- a/dist/notify/index.js
+++ b/dist/notify/index.js
@@ -16,6 +16,10 @@ VantComponent({
         duration: {
             type: Number,
             value: 3000
+        },
+        zIndex: {
+            type: Number,
+            value: 110
         }
     },
     methods: {
diff --git a/dist/notify/index.wxml b/dist/notify/index.wxml
index 4f480eaa..96f58206 100644
--- a/dist/notify/index.wxml
+++ b/dist/notify/index.wxml
@@ -2,7 +2,7 @@
   name="slide-down"
   show="{{ show }}"
   custom-class="van-notify"
-  custom-style="background-color:{{ backgroundColor }}; color: {{ color }};"
+  custom-style="background-color:{{ backgroundColor }}; color: {{ color }}; z-index: {{ zIndex }};"
 >
   <view wx:if="{{ safeAreaInsetTop }}" class="van-notify__safe-top" style="padding-top: {{ statusBarHeight }}px"></view>
   {{ text }}
diff --git a/dist/notify/index.wxss b/dist/notify/index.wxss
index de9b6203..6c2fccd9 100644
--- a/dist/notify/index.wxss
+++ b/dist/notify/index.wxss
@@ -1 +1 @@
-@import '../common/index.wxss';.van-notify{position:fixed;top:0;z-index:110;width:100%;padding:6px 15px;font-size:14px;line-height:20px;text-align:center;word-break:break-all;box-sizing:border-box}.van-notify__safe-top{height:44px}
\ No newline at end of file
+@import '../common/index.wxss';.van-notify{position:fixed;top:0;width:100%;padding:6px 15px;font-size:14px;line-height:20px;text-align:center;word-break:break-all;box-sizing:border-box}.van-notify__safe-top{height:44px}
\ No newline at end of file
diff --git a/dist/notify/notify.d.ts b/dist/notify/notify.d.ts
index efd46b25..501dcd99 100644
--- a/dist/notify/notify.d.ts
+++ b/dist/notify/notify.d.ts
@@ -1,4 +1,4 @@
-declare type NotifyOptions = {
+interface NotifyOptions {
     text: string;
     color?: string;
     backgroundColor?: string;
@@ -6,6 +6,7 @@ declare type NotifyOptions = {
     selector?: string;
     context?: any;
     safeAreaInsetTop?: boolean;
-};
+    zIndex?: number;
+}
 export default function Notify(options: NotifyOptions | string): void;
 export {};
diff --git a/dist/picker-column/index.wxss b/dist/picker-column/index.wxss
index b39acdc8..51426970 100644
--- a/dist/picker-column/index.wxss
+++ b/dist/picker-column/index.wxss
@@ -1 +1 @@
-@import '../common/index.wxss';.van-picker-column{overflow:hidden;font-size:16px;text-align:center}.van-picker-column__item{padding:0 5px;color:#999}.van-picker-column__item--selected{font-weight:500;color:#333}.van-picker-column__item--disabled{opacity:.3}
\ No newline at end of file
+@import '../common/index.wxss';.van-picker-column{overflow:hidden;font-size:16px;color:#999;text-align:center}.van-picker-column__item{padding:0 5px}.van-picker-column__item--selected{font-weight:500;color:#333}.van-picker-column__item--disabled{opacity:.3}
\ No newline at end of file
diff --git a/dist/picker/index.js b/dist/picker/index.js
index f5ddaab5..3589df2c 100644
--- a/dist/picker/index.js
+++ b/dist/picker/index.js
@@ -1,39 +1,24 @@
 import { VantComponent } from '../common/component';
-function isSimple(columns) {
-    return columns.length && !columns[0].values;
-}
+import { pickerProps } from './shared';
 VantComponent({
     classes: ['active-class', 'toolbar-class', 'column-class'],
-    props: {
-        title: String,
-        loading: Boolean,
-        showToolbar: Boolean,
-        confirmButtonText: String,
-        cancelButtonText: String,
-        visibleItemCount: {
-            type: Number,
-            value: 5
-        },
-        valueKey: {
+    props: Object.assign({}, pickerProps, { valueKey: {
             type: String,
             value: 'text'
-        },
-        itemHeight: {
+        }, defaultIndex: {
             type: Number,
-            value: 44
-        },
-        columns: {
+            value: 0
+        }, columns: {
             type: Array,
             value: [],
             observer(columns = []) {
-                this.simple = isSimple(columns);
+                this.simple = columns.length && !columns[0].values;
                 this.children = this.selectAllComponents('.van-picker__column');
                 if (Array.isArray(this.children) && this.children.length) {
                     this.setColumns().catch(() => { });
                 }
             }
-        }
-    },
+        } }),
     beforeCreate() {
         this.children = [];
     },
diff --git a/dist/picker/index.wxml b/dist/picker/index.wxml
index 5bc4b9c8..2a9cead2 100644
--- a/dist/picker/index.wxml
+++ b/dist/picker/index.wxml
@@ -10,7 +10,7 @@
       data-type="cancel"
       bindtap="emit"
     >
-      {{ cancelButtonText || '取消' }}
+      {{ cancelButtonText }}
     </view>
     <view wx:if="{{ title }}" class="van-picker__title van-ellipsis">{{ title }}</view>
     <view
@@ -20,7 +20,7 @@
       data-type="confirm"
       bindtap="emit"
     >
-      {{ confirmButtonText || '确认' }}
+      {{ confirmButtonText }}
     </view>
   </view>
   <view wx:if="{{ loading }}" class="van-picker__loading">
@@ -39,7 +39,7 @@
       custom-class="column-class"
       value-key="{{ valueKey }}"
       initial-options="{{ isSimple(columns) ? item : item.values }}"
-      default-index="{{ item.defaultIndex }}"
+      default-index="{{ item.defaultIndex || defaultIndex }}"
       item-height="{{ itemHeight }}"
       visible-item-count="{{ visibleItemCount }}"
       active-class="active-class"
diff --git a/dist/picker/shared.d.ts b/dist/picker/shared.d.ts
new file mode 100644
index 00000000..c5480459
--- /dev/null
+++ b/dist/picker/shared.d.ts
@@ -0,0 +1,21 @@
+export declare const pickerProps: {
+    title: StringConstructor;
+    loading: BooleanConstructor;
+    showToolbar: BooleanConstructor;
+    cancelButtonText: {
+        type: StringConstructor;
+        value: string;
+    };
+    confirmButtonText: {
+        type: StringConstructor;
+        value: string;
+    };
+    visibleItemCount: {
+        type: NumberConstructor;
+        value: number;
+    };
+    itemHeight: {
+        type: NumberConstructor;
+        value: number;
+    };
+};
diff --git a/dist/picker/shared.js b/dist/picker/shared.js
new file mode 100644
index 00000000..cf57d1d4
--- /dev/null
+++ b/dist/picker/shared.js
@@ -0,0 +1,21 @@
+export const pickerProps = {
+    title: String,
+    loading: Boolean,
+    showToolbar: Boolean,
+    cancelButtonText: {
+        type: String,
+        value: '取消'
+    },
+    confirmButtonText: {
+        type: String,
+        value: '确认'
+    },
+    visibleItemCount: {
+        type: Number,
+        value: 5
+    },
+    itemHeight: {
+        type: Number,
+        value: 44
+    }
+};
diff --git a/dist/slider/index.js b/dist/slider/index.js
index d439cd57..4d82657b 100644
--- a/dist/slider/index.js
+++ b/dist/slider/index.js
@@ -49,13 +49,14 @@ VantComponent({
             this.touchMove(event);
             this.getRect('.van-slider').then((rect) => {
                 const diff = this.deltaX / rect.width * 100;
-                this.updateValue(this.startValue + diff, false, true);
+                this.newValue = this.startValue + diff;
+                this.updateValue(this.newValue, false, true);
             });
         },
         onTouchEnd() {
             if (this.data.disabled)
                 return;
-            this.updateValue(this.data.value, true);
+            this.updateValue(this.newValue, true);
         },
         onClick(event) {
             if (this.data.disabled)
diff --git a/dist/submit-bar/index.js b/dist/submit-bar/index.js
index 89392338..60c19fae 100644
--- a/dist/submit-bar/index.js
+++ b/dist/submit-bar/index.js
@@ -22,6 +22,10 @@ VantComponent({
         buttonType: {
             type: String,
             value: 'danger'
+        },
+        decimalLength: {
+            type: Number,
+            value: 2
         }
     },
     computed: {
@@ -29,7 +33,7 @@ VantComponent({
             return typeof this.data.price === 'number';
         },
         priceStr() {
-            return (this.data.price / 100).toFixed(2);
+            return (this.data.price / 100).toFixed(this.data.decimalLength);
         },
         tipStr() {
             const { tip } = this.data;
diff --git a/dist/toast/index.js b/dist/toast/index.js
index 39171e17..a9fe1629 100644
--- a/dist/toast/index.js
+++ b/dist/toast/index.js
@@ -23,11 +23,6 @@ VantComponent({
         }
     },
     methods: {
-        clear() {
-            this.set({
-                show: false
-            });
-        },
         // for prevent touchmove
         noop() { }
     }
diff --git a/dist/toast/index.wxml b/dist/toast/index.wxml
index 1158d2e1..3e27e2d9 100644
--- a/dist/toast/index.wxml
+++ b/dist/toast/index.wxml
@@ -27,5 +27,7 @@
       <van-icon wx:else class="van-toast__icon" name="{{ type }}" />
       <text wx:if="{{ message }}" class="van-toast__text">{{ message }}</text>
     </block>
+
+    <slot />
   </view>
 </van-transition>
diff --git a/dist/toast/toast.d.ts b/dist/toast/toast.d.ts
index b9820368..b32da54d 100644
--- a/dist/toast/toast.d.ts
+++ b/dist/toast/toast.d.ts
@@ -1,5 +1,5 @@
 declare type ToastMessage = string | number;
-export declare type ToastOptions = {
+interface ToastOptions {
     show?: boolean;
     type?: string;
     mask?: boolean;
@@ -11,15 +11,15 @@ export declare type ToastOptions = {
     forbidClick?: boolean;
     loadingType?: string;
     message?: ToastMessage;
-};
-export interface Toast {
-    (message: ToastOptions | ToastMessage, options?: ToastOptions): Weapp.Component;
-    loading?(options?: ToastOptions | ToastMessage): Weapp.Component;
-    success?(options?: ToastOptions | ToastMessage): Weapp.Component;
-    fail?(options?: ToastOptions | ToastMessage): Weapp.Component;
-    clear?(): void;
-    setDefaultOptions?(options: ToastOptions): void;
-    resetDefaultOptions?(): void;
+    onClose?: () => void;
+}
+declare function Toast(toastOptions: ToastOptions | ToastMessage): Weapp.Component;
+declare namespace Toast {
+    var loading: (options: string | number | ToastOptions) => Weapp.Component;
+    var success: (options: string | number | ToastOptions) => Weapp.Component;
+    var fail: (options: string | number | ToastOptions) => Weapp.Component;
+    var clear: () => void;
+    var setDefaultOptions: (options: ToastOptions) => void;
+    var resetDefaultOptions: () => void;
 }
-declare const Toast: Toast;
 export default Toast;
diff --git a/dist/toast/toast.js b/dist/toast/toast.js
index 92b5d55b..b981d210 100644
--- a/dist/toast/toast.js
+++ b/dist/toast/toast.js
@@ -20,8 +20,8 @@ function getContext() {
     const pages = getCurrentPages();
     return pages[pages.length - 1];
 }
-const Toast = (options = {}) => {
-    options = Object.assign({}, currentOptions, parseOptions(options));
+function Toast(toastOptions) {
+    const options = Object.assign({}, currentOptions, parseOptions(toastOptions));
     const context = options.context || getContext();
     const toast = context.selectComponent(options.selector);
     if (!toast) {
@@ -30,6 +30,12 @@ const Toast = (options = {}) => {
     }
     delete options.context;
     delete options.selector;
+    toast.clear = () => {
+        toast.set({ show: false });
+        if (options.onClose) {
+            options.onClose();
+        }
+    };
     queue.push(toast);
     toast.set(options);
     clearTimeout(toast.timer);
@@ -40,18 +46,18 @@ const Toast = (options = {}) => {
         }, options.duration);
     }
     return toast;
-};
-const createMethod = type => options => Toast(Object.assign({ type }, parseOptions(options)));
-['loading', 'success', 'fail'].forEach(method => {
-    Toast[method] = createMethod(method);
-});
+}
+const createMethod = type => (options) => Toast(Object.assign({ type }, parseOptions(options)));
+Toast.loading = createMethod('loading');
+Toast.success = createMethod('success');
+Toast.fail = createMethod('fail');
 Toast.clear = () => {
     queue.forEach(toast => {
         toast.clear();
     });
     queue = [];
 };
-Toast.setDefaultOptions = options => {
+Toast.setDefaultOptions = (options) => {
     Object.assign(currentOptions, options);
 };
 Toast.resetDefaultOptions = () => {
diff --git a/lib/area/index.js b/lib/area/index.js
index 65403818..5157eb9b 100644
--- a/lib/area/index.js
+++ b/lib/area/index.js
@@ -1,31 +1,27 @@
 "use strict";
+var __assign = (this && this.__assign) || function () {
+    __assign = Object.assign || function(t) {
+        for (var s, i = 1, n = arguments.length; i < n; i++) {
+            s = arguments[i];
+            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
+                t[p] = s[p];
+        }
+        return t;
+    };
+    return __assign.apply(this, arguments);
+};
 Object.defineProperty(exports, "__esModule", { value: true });
 var component_1 = require("../common/component");
+var shared_1 = require("../picker/shared");
 component_1.VantComponent({
     classes: ['active-class', 'toolbar-class', 'column-class'],
-    props: {
-        title: String,
-        value: String,
-        loading: Boolean,
-        cancelButtonText: String,
-        confirmButtonText: String,
-        itemHeight: {
-            type: Number,
-            value: 44
-        },
-        visibleItemCount: {
-            type: Number,
-            value: 5
-        },
-        columnsNum: {
-            type: [String, Number],
-            value: 3
-        },
-        areaList: {
+    props: __assign({}, shared_1.pickerProps, { value: String, areaList: {
             type: Object,
             value: {}
-        }
-    },
+        }, columnsNum: {
+            type: [String, Number],
+            value: 3
+        } }),
     data: {
         columns: [{ values: [] }, { values: [] }, { values: [] }],
         displayColumns: [{ values: [] }, { values: [] }, { values: [] }]
@@ -42,6 +38,9 @@ component_1.VantComponent({
             });
         }
     },
+    mounted: function () {
+        this.setValues();
+    },
     methods: {
         getPicker: function () {
             if (this.picker == null) {
@@ -124,7 +123,6 @@ component_1.VantComponent({
             stack.push(picker.setColumnValues(0, province, false));
             stack.push(picker.setColumnValues(1, city, false));
             if (city.length && code.slice(2, 4) === '00') {
-                ;
                 code = city[0].code;
             }
             stack.push(picker.setColumnValues(2, this.getList('county', code.slice(0, 4)), false));
diff --git a/lib/badge-group/index.js b/lib/badge-group/index.js
index dce7a51a..ffe64820 100644
--- a/lib/badge-group/index.js
+++ b/lib/badge-group/index.js
@@ -1,51 +1,45 @@
 "use strict";
 Object.defineProperty(exports, "__esModule", { value: true });
 var component_1 = require("../common/component");
-var utils_1 = require("../common/utils");
 component_1.VantComponent({
     relation: {
         name: 'badge',
         type: 'descendant',
         linked: function (target) {
             this.badges.push(target);
-            this.setActive();
+            this.setActive(this.data.active);
         },
         unlinked: function (target) {
             this.badges = this.badges.filter(function (item) { return item !== target; });
-            this.setActive();
+            this.setActive(this.data.active);
         }
     },
     props: {
         active: {
             type: Number,
-            value: 0
+            value: 0,
+            observer: 'setActive'
         }
     },
-    watch: {
-        active: 'setActive'
-    },
     beforeCreate: function () {
         this.badges = [];
         this.currentActive = -1;
     },
     methods: {
-        setActive: function (badge) {
-            var active = this.data.active;
-            var badges = this.badges;
-            if (badge && !utils_1.isNumber(badge)) {
-                active = badges.indexOf(badge);
+        setActive: function (active) {
+            var _a = this, badges = _a.badges, currentActive = _a.currentActive;
+            if (!badges.length) {
+                return Promise.resolve();
             }
-            if (active === this.currentActive) {
-                return;
-            }
-            if (this.currentActive !== -1 && badges[this.currentActive]) {
-                this.$emit('change', active);
-                badges[this.currentActive].setActive(false);
+            this.currentActive = active;
+            var stack = [];
+            if (currentActive !== active && badges[currentActive]) {
+                stack.push(badges[currentActive].setActive(false));
             }
             if (badges[active]) {
-                badges[active].setActive(true);
-                this.currentActive = active;
+                stack.push(badges[active].setActive(true));
             }
+            return Promise.all(stack);
         }
     }
 });
diff --git a/lib/badge/index.js b/lib/badge/index.js
index 37cb16c6..7abc5ec2 100644
--- a/lib/badge/index.js
+++ b/lib/badge/index.js
@@ -4,7 +4,10 @@ var component_1 = require("../common/component");
 component_1.VantComponent({
     relation: {
         type: 'ancestor',
-        name: 'badge-group'
+        name: 'badge-group',
+        linked: function (target) {
+            this.parent = target;
+        }
     },
     props: {
         info: null,
@@ -12,13 +15,19 @@ component_1.VantComponent({
     },
     methods: {
         onClick: function () {
-            var group = this.getRelationNodes('../badge-group/index')[0];
-            if (group) {
-                group.setActive(this);
+            var _this = this;
+            var parent = this.parent;
+            if (!parent) {
+                return;
             }
+            var index = parent.badges.indexOf(this);
+            parent.setActive(index).then(function () {
+                _this.$emit('click', index);
+                parent.$emit('change', index);
+            });
         },
         setActive: function (active) {
-            this.set({ active: active });
+            return this.set({ active: active });
         }
     }
 });
diff --git a/lib/cell/index.js b/lib/cell/index.js
index 5a62f45b..b35ed85d 100644
--- a/lib/cell/index.js
+++ b/lib/cell/index.js
@@ -24,6 +24,7 @@ component_1.VantComponent({
         titleWidth: String,
         customStyle: String,
         arrowDirection: String,
+        useLabelSlot: Boolean,
         border: {
             type: Boolean,
             value: true
diff --git a/lib/cell/index.wxml b/lib/cell/index.wxml
index 44f643d8..afaaaf86 100644
--- a/lib/cell/index.wxml
+++ b/lib/cell/index.wxml
@@ -19,11 +19,13 @@
     style="{{ titleWidth ? 'max-width:' + titleWidth + ';min-width:' + titleWidth : '' }}"
     class="van-cell__title title-class"
   >
-    <block wx:if="{{ title }}">
-      {{ title }}
-      <view wx:if="{{ label }}" class="van-cell__label label-class">{{ label }}</view>
-    </block>
+    <block wx:if="{{ title }}">{{ title }}</block>
     <slot wx:else name="title" />
+
+    <view wx:if="{{ label || useLabelSlot }}" class="van-cell__label label-class">
+      <slot wx:if="{{ useLabelSlot }}" name="label" />
+      <block wx:elif="{{ label }}">{{ label }}</block>
+    </view>
   </view>
 
   <view class="van-cell__value value-class">
diff --git a/lib/collapse-item/index.js b/lib/collapse-item/index.js
index b0d1a094..41f1090f 100644
--- a/lib/collapse-item/index.js
+++ b/lib/collapse-item/index.js
@@ -18,6 +18,7 @@ component_1.VantComponent({
         icon: String,
         label: String,
         disabled: Boolean,
+        clickable: Boolean,
         border: {
             type: Boolean,
             value: true
diff --git a/lib/collapse-item/index.wxml b/lib/collapse-item/index.wxml
index a3fe5a8f..91afbc2d 100644
--- a/lib/collapse-item/index.wxml
+++ b/lib/collapse-item/index.wxml
@@ -5,9 +5,10 @@
     title="{{ title }}"
     title-class="title-class"
     icon="{{ icon }}"
-    is-link="{{ isLink }}"
     value="{{ value }}"
     label="{{ label }}"
+    is-link="{{ isLink }}"
+    clickable="{{ clickable }}"
     border="{{ border && expanded }}"
     class="{{ utils.bem('collapse-item__title', { disabled, expanded }) }}"
     right-icon-class="van-cell__right-icon"
diff --git a/lib/collapse/index.js b/lib/collapse/index.js
index 75a4e32e..62982573 100644
--- a/lib/collapse/index.js
+++ b/lib/collapse/index.js
@@ -7,6 +7,9 @@ component_1.VantComponent({
         type: 'descendant',
         linked: function (child) {
             this.children.push(child);
+        },
+        unlinked: function (child) {
+            this.children = this.children.filter(function (item) { return item !== child; });
         }
     },
     props: {
diff --git a/lib/datetime-picker/index.js b/lib/datetime-picker/index.js
index 8fd2858e..318232d3 100644
--- a/lib/datetime-picker/index.js
+++ b/lib/datetime-picker/index.js
@@ -1,7 +1,19 @@
 "use strict";
+var __assign = (this && this.__assign) || function () {
+    __assign = Object.assign || function(t) {
+        for (var s, i = 1, n = arguments.length; i < n; i++) {
+            s = arguments[i];
+            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
+                t[p] = s[p];
+        }
+        return t;
+    };
+    return __assign.apply(this, arguments);
+};
 Object.defineProperty(exports, "__esModule", { value: true });
 var component_1 = require("../common/component");
 var utils_1 = require("../common/utils");
+var shared_1 = require("../picker/shared");
 var currentYear = new Date().getFullYear();
 function isValidDate(date) {
     return utils_1.isDef(date) && !isNaN(new Date(date).getTime());
@@ -31,60 +43,37 @@ function getTrueValue(formattedValue) {
 function getMonthEndDay(year, month) {
     return 32 - new Date(year, month - 1, 32).getDate();
 }
+var defaultFormatter = function (_, value) { return value; };
 component_1.VantComponent({
-    props: {
-        value: null,
-        title: String,
-        loading: Boolean,
-        itemHeight: {
-            type: Number,
-            value: 44
-        },
-        visibleItemCount: {
-            type: Number,
-            value: 5
-        },
-        confirmButtonText: {
-            type: String,
-            value: '确认'
-        },
-        cancelButtonText: {
-            type: String,
-            value: '取消'
-        },
-        type: {
+    classes: ['active-class', 'toolbar-class', 'column-class'],
+    props: __assign({}, shared_1.pickerProps, { formatter: {
+            type: Function,
+            value: defaultFormatter
+        }, value: null, type: {
             type: String,
             value: 'datetime'
-        },
-        showToolbar: {
+        }, showToolbar: {
             type: Boolean,
             value: true
-        },
-        minDate: {
+        }, minDate: {
             type: Number,
             value: new Date(currentYear - 10, 0, 1).getTime()
-        },
-        maxDate: {
+        }, maxDate: {
             type: Number,
             value: new Date(currentYear + 10, 11, 31).getTime()
-        },
-        minHour: {
+        }, minHour: {
             type: Number,
             value: 0
-        },
-        maxHour: {
+        }, maxHour: {
             type: Number,
             value: 23
-        },
-        minMinute: {
+        }, minMinute: {
             type: Number,
             value: 0
-        },
-        maxMinute: {
+        }, maxMinute: {
             type: Number,
             value: 59
-        }
-    },
+        } }),
     data: {
         innerValue: Date.now(),
         columns: []
@@ -110,7 +99,7 @@ component_1.VantComponent({
     methods: {
         getPicker: function () {
             if (this.picker == null) {
-                var picker_1 = this.picker = this.selectComponent('.van-datetime-picker');
+                var picker_1 = (this.picker = this.selectComponent('.van-datetime-picker'));
                 var setColumnValues_1 = picker_1.setColumnValues;
                 picker_1.setColumnValues = function () {
                     var args = [];
@@ -123,12 +112,13 @@ component_1.VantComponent({
             return this.picker;
         },
         updateColumns: function () {
+            var _a = this.data.formatter, formatter = _a === void 0 ? defaultFormatter : _a;
             var results = this.getRanges().map(function (_a, index) {
                 var type = _a.type, range = _a.range;
                 var values = times(range[1] - range[0] + 1, function (index) {
                     var value = range[0] + index;
                     value = type === 'year' ? "" + value : padZero(value);
-                    return value;
+                    return formatter(type, value);
                 });
                 return { values: values };
             });
@@ -278,20 +268,26 @@ component_1.VantComponent({
         updateColumnValue: function (value) {
             var _this = this;
             var values = [];
-            var data = this.data;
+            var _a = this.data, type = _a.type, _b = _a.formatter, formatter = _b === void 0 ? defaultFormatter : _b;
             var picker = this.getPicker();
-            if (data.type === 'time') {
+            if (type === 'time') {
                 var pair = value.split(':');
-                values = [pair[0], pair[1]];
+                values = [
+                    formatter('hour', pair[0]),
+                    formatter('minute', pair[1])
+                ];
             }
             else {
                 var date = new Date(value);
-                values = ["" + date.getFullYear(), padZero(date.getMonth() + 1)];
-                if (data.type === 'date') {
-                    values.push(padZero(date.getDate()));
+                values = [
+                    formatter('year', "" + date.getFullYear()),
+                    formatter('month', padZero(date.getMonth() + 1))
+                ];
+                if (type === 'date') {
+                    values.push(formatter('day', padZero(date.getDate())));
                 }
-                if (data.type === 'datetime') {
-                    values.push(padZero(date.getDate()), padZero(date.getHours()), padZero(date.getMinutes()));
+                if (type === 'datetime') {
+                    values.push(formatter('day', padZero(date.getDate())), formatter('hour', padZero(date.getHours())), formatter('minute', padZero(date.getMinutes())));
                 }
             }
             return this.set({ innerValue: value })
diff --git a/lib/datetime-picker/index.wxml b/lib/datetime-picker/index.wxml
index 13a1b478..ade22024 100644
--- a/lib/datetime-picker/index.wxml
+++ b/lib/datetime-picker/index.wxml
@@ -1,5 +1,8 @@
 <van-picker
   class="van-datetime-picker"
+  active-class="active-class"
+  toolbar-class="toolbar-class"
+  column-class="column-class"
   title="{{ title }}"
   columns="{{ columns }}"
   item-height="{{ itemHeight }}"
diff --git a/lib/field/index.js b/lib/field/index.js
index 155d457b..b0a5a3f4 100644
--- a/lib/field/index.js
+++ b/lib/field/index.js
@@ -3,7 +3,7 @@ Object.defineProperty(exports, "__esModule", { value: true });
 var component_1 = require("../common/component");
 component_1.VantComponent({
     field: true,
-    classes: ['input-class'],
+    classes: ['input-class', 'right-icon-class'],
     props: {
         size: String,
         icon: String,
@@ -14,6 +14,7 @@ component_1.VantComponent({
         center: Boolean,
         isLink: Boolean,
         leftIcon: String,
+        rightIcon: String,
         disabled: Boolean,
         autosize: Boolean,
         readonly: Boolean,
@@ -28,8 +29,6 @@ component_1.VantComponent({
         errorMessage: String,
         placeholder: String,
         customStyle: String,
-        useIconSlot: Boolean,
-        useButtonSlot: Boolean,
         showConfirmBar: {
             type: Boolean,
             value: true
diff --git a/lib/field/index.wxml b/lib/field/index.wxml
index afaca58d..06e45941 100644
--- a/lib/field/index.wxml
+++ b/lib/field/index.wxml
@@ -24,9 +24,6 @@
       disabled="{{ disabled || readonly }}"
       maxlength="{{ maxlength }}"
       auto-height="{{ autosize }}"
-      placeholder="{{ placeholder }}"
-      placeholder-style="{{ placeholderStyle }}"
-      placeholder-class="{{ error ? 'van-field__input--error' : 'van-field__placeholder' }}"
       cursor-spacing="{{ cursorSpacing }}"
       adjust-position="{{ adjustPosition }}"
       show-confirm-bar="{{ showConfirmBar }}"
@@ -34,7 +31,11 @@
       bind:blur="onBlur"
       bind:focus="onFocus"
       bind:confirm="onConfirm"
-    />
+    >
+      <view wx:if="{{ value == null || value.length === 0 }}" style="{{ placeholderStyle }}" class="{{ utils.bem('field__placeholder', { error }) }}">
+        {{ placeholder }}
+      </view>
+    </textarea>
     <input
       wx:else
       class="input-class {{ utils.bem('field__input', [inputAlign, { disabled, error }]) }}"
@@ -45,7 +46,7 @@
       maxlength="{{ maxlength }}"
       placeholder="{{ placeholder }}"
       placeholder-style="{{ placeholderStyle }}"
-      placeholder-class="{{ error ? 'van-field__input--error' : 'van-field__placeholder' }}"
+      placeholder-class="{{ error ? 'van-field__placeholder--error' : 'van-field__placeholder' }}"
       confirm-type="{{ confirmType }}"
       confirm-hold="{{ confirmHold }}"
       cursor-spacing="{{ cursorSpacing }}"
@@ -59,20 +60,21 @@
       wx:if="{{ showClear }}"
       size="16px"
       name="clear"
-      class="van-field__clear-root"
-      custom-class="van-field__clear"
-      bind:touchstart="onClear"
+      class="van-field__clear-root van-field__icon-root"
+      bindtouchstart="onClear"
     />
-    <view class="van-field__icon-container" wx:if="{{ icon || useIconSlot }}" bind:tap="onClickIcon">
+    <view class="van-field__icon-container" bind:tap="onClickIcon">
       <van-icon
-        wx:if="{{ icon }}"
+        wx:if="{{ rightIcon || icon }}"
         size="16px"
-        name="{{ icon }}"
-        custom-class="van-field__icon {{ iconClass }}"
+        name="{{ rightIcon || icon }}"
+        class="van-field__icon-root {{ iconClass }}"
+        custom-class="right-icon-class"
       />
-      <slot wx:else name="icon" />
+      <slot name="right-icon" />
+      <slot name="icon" />
     </view>
-    <view wx:if="{{ useButtonSlot }}" class="van-field__button">
+    <view class="van-field__button">
       <slot name="button" />
     </view>
   </view>
diff --git a/lib/field/index.wxss b/lib/field/index.wxss
index 99ac1dcb..97945748 100644
--- a/lib/field/index.wxss
+++ b/lib/field/index.wxss
@@ -1 +1 @@
-@import '../common/index.wxss';.van-field__body{display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center}.van-field__body--textarea{min-height:24px}.van-field__input{display:block;width:100%;height:24px;min-height:24px;padding:0;margin:0;line-height:inherit;color:#333;text-align:left;background-color:initial;border:0;box-sizing:border-box;resize:none}.van-field__input--disabled{color:#999;background-color:initial;opacity:1}.van-field__input--center{text-align:center}.van-field__input--right{text-align:right}.van-field__input--error{color:#f44}.van-field__placeholder{color:#999}.van-field__clear-root{display:-webkit-flex;display:flex;height:24px;-webkit-align-items:center;align-items:center}.van-field__button,.van-field__clear,.van-field__icon-container{-webkit-flex-shrink:0;flex-shrink:0}.van-field__clear,.van-field__icon-container{padding:0 10px;margin-right:-10px;line-height:inherit;vertical-align:middle}.van-field__clear{color:#c9c9c9}.van-field__icon-container{color:#999}.van-field__icon{display:block!important}.van-field__button{padding-left:10px}.van-field__error-message{font-size:12px;color:#f44;text-align:left}.van-field__error--center{text-align:center}.van-field__error--right{text-align:right}
\ No newline at end of file
+@import '../common/index.wxss';.van-field__body{display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center}.van-field__body--textarea{min-height:24px}.van-field__input{position:relative;display:block;width:100%;height:24px;min-height:24px;padding:0;margin:0;line-height:inherit;color:#333;text-align:left;background-color:initial;border:0;box-sizing:border-box;resize:none}.van-field__input--disabled{color:#999;background-color:initial;opacity:1}.van-field__input--center{text-align:center}.van-field__input--right{text-align:right}.van-field__placeholder{position:absolute;top:0;left:0;color:#999;pointer-events:none}.van-field__placeholder--error{color:#f44}.van-field__icon-root{display:-webkit-flex;display:flex;min-height:24px;-webkit-align-items:center;align-items:center}.van-field__clear-root,.van-field__icon-container{padding:0 10px;margin-right:-10px;line-height:inherit;vertical-align:middle}.van-field__button,.van-field__clear-root,.van-field__icon-container{-webkit-flex-shrink:0;flex-shrink:0}.van-field__clear-root{color:#c9c9c9}.van-field__icon-container{color:#999}.van-field__icon-container:empty{display:none}.van-field__button{padding-left:10px}.van-field__button:empty{display:none}.van-field__error-message{font-size:12px;color:#f44;text-align:left}.van-field__error-message--center{text-align:center}.van-field__error-message--right{text-align:right}
\ No newline at end of file
diff --git a/lib/icon/index.wxss b/lib/icon/index.wxss
index 5a4ec661..9ea0d2a0 100644
--- a/lib/icon/index.wxss
+++ b/lib/icon/index.wxss
@@ -1 +1 @@
-@import '../common/index.wxss';@font-face{font-style:normal;font-weight:400;font-family:vant-icon;src:url(https://img.yzcdn.cn/vant/vant-icon-29f643.woff2) format("woff2"),url(https://img.yzcdn.cn/vant/vant-icon-29f643.woff) format("woff"),url(https://img.yzcdn.cn/vant/vant-icon-29f643.ttf) format("truetype")}.van-icon{position:relative;font:normal normal normal 14px/1 vant-icon;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased}.van-icon,.van-icon:before{display:inline-block}.van-icon-add-o:before{content:"\F000"}.van-icon-add-square:before{content:"\F001"}.van-icon-add:before{content:"\F002"}.van-icon-after-sale:before{content:"\F003"}.van-icon-aim:before{content:"\F004"}.van-icon-alipay:before{content:"\F005"}.van-icon-apps-o:before{content:"\F006"}.van-icon-arrow-down:before{content:"\F007"}.van-icon-arrow-left:before{content:"\F008"}.van-icon-arrow-up:before{content:"\F009"}.van-icon-arrow:before{content:"\F00A"}.van-icon-ascending:before{content:"\F00B"}.van-icon-audio:before{content:"\F00C"}.van-icon-award-o:before{content:"\F00D"}.van-icon-award:before{content:"\F00E"}.van-icon-bag-o:before{content:"\F00F"}.van-icon-bag:before{content:"\F010"}.van-icon-balance-list-o:before{content:"\F011"}.van-icon-balance-list:before{content:"\F012"}.van-icon-balance-o:before{content:"\F013"}.van-icon-balance-pay:before{content:"\F014"}.van-icon-bar-chart-o:before{content:"\F015"}.van-icon-bars:before{content:"\F016"}.van-icon-bell:before{content:"\F017"}.van-icon-bill-o:before{content:"\F018"}.van-icon-bill:before{content:"\F019"}.van-icon-birthday-cake-o:before{content:"\F01A"}.van-icon-bookmark-o:before{content:"\F01B"}.van-icon-bookmark:before{content:"\F01C"}.van-icon-browsing-history-o:before{content:"\F01D"}.van-icon-browsing-history:before{content:"\F01E"}.van-icon-brush-o:before{content:"\F01F"}.van-icon-bulb-o:before{content:"\F020"}.van-icon-bullhorn-o:before{content:"\F021"}.van-icon-calender-o:before{content:"\F022"}.van-icon-card:before{content:"\F023"}.van-icon-cart-circle-o:before{content:"\F024"}.van-icon-cart-circle:before{content:"\F025"}.van-icon-cart-o:before{content:"\F026"}.van-icon-cart:before{content:"\F027"}.van-icon-cash-back-record:before{content:"\F028"}.van-icon-cash-on-deliver:before{content:"\F029"}.van-icon-cashier-o:before{content:"\F02A"}.van-icon-certificate:before{content:"\F02B"}.van-icon-chart-trending-o:before{content:"\F02C"}.van-icon-chat-o:before{content:"\F02D"}.van-icon-chat:before{content:"\F02E"}.van-icon-checked:before{content:"\F02F"}.van-icon-circle:before{content:"\F030"}.van-icon-clear:before{content:"\F031"}.van-icon-clock-o:before{content:"\F032"}.van-icon-clock:before{content:"\F033"}.van-icon-close:before{content:"\F034"}.van-icon-closed-eye:before{content:"\F035"}.van-icon-cluster-o:before{content:"\F036"}.van-icon-cluster:before{content:"\F037"}.van-icon-column:before{content:"\F038"}.van-icon-comment-circle-o:before{content:"\F039"}.van-icon-comment-o:before{content:"\F03A"}.van-icon-comment:before{content:"\F03B"}.van-icon-completed:before{content:"\F03C"}.van-icon-contact:before{content:"\F03D"}.van-icon-coupon-o:before{content:"\F03E"}.van-icon-coupon:before{content:"\F03F"}.van-icon-credit-pay:before{content:"\F040"}.van-icon-cross:before{content:"\F041"}.van-icon-debit-pay:before{content:"\F042"}.van-icon-delete:before{content:"\F043"}.van-icon-descending:before{content:"\F044"}.van-icon-description:before{content:"\F045"}.van-icon-desktop-o:before{content:"\F046"}.van-icon-diamond-o:before{content:"\F047"}.van-icon-diamond:before{content:"\F048"}.van-icon-discount:before{content:"\F049"}.van-icon-ecard-pay:before{content:"\F04A"}.van-icon-edit:before{content:"\F04B"}.van-icon-ellipsis:before{content:"\F04C"}.van-icon-empty:before{content:"\F04D"}.van-icon-envelop-o:before{content:"\F04E"}.van-icon-exchange:before{content:"\F04F"}.van-icon-expand-o:before{content:"\F050"}.van-icon-expand:before{content:"\F051"}.van-icon-eye-o:before{content:"\F052"}.van-icon-eye:before{content:"\F053"}.van-icon-fail:before{content:"\F054"}.van-icon-failure:before{content:"\F055"}.van-icon-filter-o:before{content:"\F056"}.van-icon-fire-o:before{content:"\F057"}.van-icon-fire:before{content:"\F058"}.van-icon-flag-o:before{content:"\F059"}.van-icon-flower-o:before{content:"\F05A"}.van-icon-free-postage:before{content:"\F05B"}.van-icon-friends-o:before{content:"\F05C"}.van-icon-friends:before{content:"\F05D"}.van-icon-gem-o:before{content:"\F05E"}.van-icon-gem:before{content:"\F05F"}.van-icon-gift-card-o:before{content:"\F060"}.van-icon-gift-card:before{content:"\F061"}.van-icon-gift-o:before{content:"\F062"}.van-icon-gift:before{content:"\F063"}.van-icon-gold-coin-o:before{content:"\F064"}.van-icon-gold-coin:before{content:"\F065"}.van-icon-goods-collect-o:before{content:"\F066"}.van-icon-goods-collect:before{content:"\F067"}.van-icon-graphic:before{content:"\F068"}.van-icon-home-o:before{content:"\F069"}.van-icon-hot-o:before{content:"\F06A"}.van-icon-hot-sale-o:before{content:"\F06B"}.van-icon-hot-sale:before{content:"\F06C"}.van-icon-hot:before{content:"\F06D"}.van-icon-hotel-o:before{content:"\F06E"}.van-icon-idcard:before{content:"\F06F"}.van-icon-info-o:before{content:"\F070"}.van-icon-info:before{content:"\F071"}.van-icon-invition:before{content:"\F072"}.van-icon-label-o:before{content:"\F073"}.van-icon-label:before{content:"\F074"}.van-icon-like-o:before{content:"\F075"}.van-icon-like:before{content:"\F076"}.van-icon-live:before{content:"\F077"}.van-icon-location-o:before{content:"\F078"}.van-icon-location:before{content:"\F079"}.van-icon-lock:before{content:"\F07A"}.van-icon-logistics:before{content:"\F07B"}.van-icon-manager-o:before{content:"\F07C"}.van-icon-manager:before{content:"\F07D"}.van-icon-map-marked:before{content:"\F07E"}.van-icon-medel-o:before{content:"\F07F"}.van-icon-medel:before{content:"\F080"}.van-icon-more-o:before{content:"\F081"}.van-icon-more:before{content:"\F082"}.van-icon-music-o:before{content:"\F083"}.van-icon-new-arrival-o:before{content:"\F084"}.van-icon-new-arrival:before{content:"\F085"}.van-icon-new-o:before{content:"\F086"}.van-icon-new:before{content:"\F087"}.van-icon-newspaper-o:before{content:"\F088"}.van-icon-notes-o:before{content:"\F089"}.van-icon-orders-o:before{content:"\F08A"}.van-icon-other-pay:before{content:"\F08B"}.van-icon-paid:before{content:"\F08C"}.van-icon-passed:before{content:"\F08D"}.van-icon-pause-circle-o:before{content:"\F08E"}.van-icon-pause-circle:before{content:"\F08F"}.van-icon-pause:before{content:"\F090"}.van-icon-peer-pay:before{content:"\F091"}.van-icon-pending-payment:before{content:"\F092"}.van-icon-phone-circle-o:before{content:"\F093"}.van-icon-phone-o:before{content:"\F094"}.van-icon-phone:before{content:"\F095"}.van-icon-photo-o:before{content:"\F096"}.van-icon-photo:before{content:"\F097"}.van-icon-photograph:before{content:"\F098"}.van-icon-play-circle-o:before{content:"\F099"}.van-icon-play-circle:before{content:"\F09A"}.van-icon-play:before{content:"\F09B"}.van-icon-plus:before{content:"\F09C"}.van-icon-point-gift-o:before{content:"\F09D"}.van-icon-point-gift:before{content:"\F09E"}.van-icon-points:before{content:"\F09F"}.van-icon-printer:before{content:"\F0A0"}.van-icon-qr-invalid:before{content:"\F0A1"}.van-icon-qr:before{content:"\F0A2"}.van-icon-question-o:before{content:"\F0A3"}.van-icon-question:before{content:"\F0A4"}.van-icon-records:before{content:"\F0A5"}.van-icon-refund-o:before{content:"\F0A6"}.van-icon-replay:before{content:"\F0A7"}.van-icon-scan:before{content:"\F0A8"}.van-icon-search:before{content:"\F0A9"}.van-icon-send-gift-o:before{content:"\F0AA"}.van-icon-send-gift:before{content:"\F0AB"}.van-icon-service-o:before{content:"\F0AC"}.van-icon-service:before{content:"\F0AD"}.van-icon-setting-o:before{content:"\F0AE"}.van-icon-setting:before{content:"\F0AF"}.van-icon-share:before{content:"\F0B0"}.van-icon-shop-collect-o:before{content:"\F0B1"}.van-icon-shop-collect:before{content:"\F0B2"}.van-icon-shop-o:before{content:"\F0B3"}.van-icon-shop:before{content:"\F0B4"}.van-icon-shopping-cart-o:before{content:"\F0B5"}.van-icon-shopping-cart:before{content:"\F0B6"}.van-icon-shrink:before{content:"\F0B7"}.van-icon-sign:before{content:"\F0B8"}.van-icon-smile-comment-o:before{content:"\F0B9"}.van-icon-smile-comment:before{content:"\F0BA"}.van-icon-smile-o:before{content:"\F0BB"}.van-icon-star-o:before{content:"\F0BC"}.van-icon-star:before{content:"\F0BD"}.van-icon-stop-circle-o:before{content:"\F0BE"}.van-icon-stop-circle:before{content:"\F0BF"}.van-icon-stop:before{content:"\F0C0"}.van-icon-success:before{content:"\F0C1"}.van-icon-thumb-circle-o:before{content:"\F0C2"}.van-icon-todo-list-o:before{content:"\F0C3"}.van-icon-todo-list:before{content:"\F0C4"}.van-icon-tosend:before{content:"\F0C5"}.van-icon-tv-o:before{content:"\F0C6"}.van-icon-umbrella-circle:before{content:"\F0C7"}.van-icon-underway-o:before{content:"\F0C8"}.van-icon-underway:before{content:"\F0C9"}.van-icon-upgrade:before{content:"\F0CA"}.van-icon-user-circle-o:before{content:"\F0CB"}.van-icon-user-o:before{content:"\F0CC"}.van-icon-video-o:before{content:"\F0CD"}.van-icon-video:before{content:"\F0CE"}.van-icon-vip-card-o:before{content:"\F0CF"}.van-icon-vip-card:before{content:"\F0D0"}.van-icon-volume-o:before{content:"\F0D1"}.van-icon-volume:before{content:"\F0D2"}.van-icon-wap-home:before{content:"\F0D3"}.van-icon-wap-nav:before{content:"\F0D4"}.van-icon-warn-o:before{content:"\F0D5"}.van-icon-warning-o:before{content:"\F0D6"}.van-icon-weapp-nav:before{content:"\F0D7"}.van-icon-wechat:before{content:"\F0D8"}.van-icon-youzan-shield:before{content:"\F0D9"}.van-icon--image{width:1em;height:1em}.van-icon__image{position:absolute;top:0;right:0;bottom:0;left:0;max-width:100%;max-height:100%;margin:auto}.van-icon__info{z-index:1}
\ No newline at end of file
+@import '../common/index.wxss';@font-face{font-style:normal;font-weight:400;font-family:vant-icon;src:url(https://img.yzcdn.cn/vant/vant-icon-6bbd30.woff2) format("woff2"),url(https://img.yzcdn.cn/vant/vant-icon-6bbd30.woff) format("woff"),url(https://img.yzcdn.cn/vant/vant-icon-6bbd30.ttf) format("truetype")}.van-icon{position:relative;font:normal normal normal 14px/1 vant-icon;font-size:inherit;text-rendering:auto;-webkit-font-smoothing:antialiased}.van-icon,.van-icon:before{display:inline-block}.van-icon-add-o:before{content:"\F000"}.van-icon-add-square:before{content:"\F001"}.van-icon-add:before{content:"\F002"}.van-icon-after-sale:before{content:"\F003"}.van-icon-aim:before{content:"\F004"}.van-icon-alipay:before{content:"\F005"}.van-icon-apps-o:before{content:"\F006"}.van-icon-arrow-down:before{content:"\F007"}.van-icon-arrow-left:before{content:"\F008"}.van-icon-arrow-up:before{content:"\F009"}.van-icon-arrow:before{content:"\F00A"}.van-icon-ascending:before{content:"\F00B"}.van-icon-audio:before{content:"\F00C"}.van-icon-award-o:before{content:"\F00D"}.van-icon-award:before{content:"\F00E"}.van-icon-bag-o:before{content:"\F00F"}.van-icon-bag:before{content:"\F010"}.van-icon-balance-list-o:before{content:"\F011"}.van-icon-balance-list:before{content:"\F012"}.van-icon-balance-o:before{content:"\F013"}.van-icon-balance-pay:before{content:"\F014"}.van-icon-bar-chart-o:before{content:"\F015"}.van-icon-bars:before{content:"\F016"}.van-icon-bell:before{content:"\F017"}.van-icon-bill-o:before{content:"\F018"}.van-icon-bill:before{content:"\F019"}.van-icon-birthday-cake-o:before{content:"\F01A"}.van-icon-bookmark-o:before{content:"\F01B"}.van-icon-bookmark:before{content:"\F01C"}.van-icon-browsing-history-o:before{content:"\F01D"}.van-icon-browsing-history:before{content:"\F01E"}.van-icon-brush-o:before{content:"\F01F"}.van-icon-bulb-o:before{content:"\F020"}.van-icon-bullhorn-o:before{content:"\F021"}.van-icon-calender-o:before{content:"\F022"}.van-icon-card:before{content:"\F023"}.van-icon-cart-circle-o:before{content:"\F024"}.van-icon-cart-circle:before{content:"\F025"}.van-icon-cart-o:before{content:"\F026"}.van-icon-cart:before{content:"\F027"}.van-icon-cash-back-record:before{content:"\F028"}.van-icon-cash-on-deliver:before{content:"\F029"}.van-icon-cashier-o:before{content:"\F02A"}.van-icon-certificate:before{content:"\F02B"}.van-icon-chart-trending-o:before{content:"\F02C"}.van-icon-chat-o:before{content:"\F02D"}.van-icon-chat:before{content:"\F02E"}.van-icon-checked:before{content:"\F02F"}.van-icon-circle:before{content:"\F030"}.van-icon-clear:before{content:"\F031"}.van-icon-clock-o:before{content:"\F032"}.van-icon-clock:before{content:"\F033"}.van-icon-close:before{content:"\F034"}.van-icon-closed-eye:before{content:"\F035"}.van-icon-cluster-o:before{content:"\F036"}.van-icon-cluster:before{content:"\F037"}.van-icon-column:before{content:"\F038"}.van-icon-comment-circle-o:before{content:"\F039"}.van-icon-comment-o:before{content:"\F03A"}.van-icon-comment:before{content:"\F03B"}.van-icon-completed:before{content:"\F03C"}.van-icon-contact:before{content:"\F03D"}.van-icon-coupon-o:before{content:"\F03E"}.van-icon-coupon:before{content:"\F03F"}.van-icon-credit-pay:before{content:"\F040"}.van-icon-cross:before{content:"\F041"}.van-icon-debit-pay:before{content:"\F042"}.van-icon-delete:before{content:"\F043"}.van-icon-descending:before{content:"\F044"}.van-icon-description:before{content:"\F045"}.van-icon-desktop-o:before{content:"\F046"}.van-icon-diamond-o:before{content:"\F047"}.van-icon-diamond:before{content:"\F048"}.van-icon-discount:before{content:"\F049"}.van-icon-ecard-pay:before{content:"\F04A"}.van-icon-edit:before{content:"\F04B"}.van-icon-ellipsis:before{content:"\F04C"}.van-icon-empty:before{content:"\F04D"}.van-icon-envelop-o:before{content:"\F04E"}.van-icon-exchange:before{content:"\F04F"}.van-icon-expand-o:before{content:"\F050"}.van-icon-expand:before{content:"\F051"}.van-icon-eye-o:before{content:"\F052"}.van-icon-eye:before{content:"\F053"}.van-icon-fail:before{content:"\F054"}.van-icon-failure:before{content:"\F055"}.van-icon-filter-o:before{content:"\F056"}.van-icon-fire-o:before{content:"\F057"}.van-icon-fire:before{content:"\F058"}.van-icon-flag-o:before{content:"\F059"}.van-icon-flower-o:before{content:"\F05A"}.van-icon-free-postage:before{content:"\F05B"}.van-icon-friends-o:before{content:"\F05C"}.van-icon-friends:before{content:"\F05D"}.van-icon-gem-o:before{content:"\F05E"}.van-icon-gem:before{content:"\F05F"}.van-icon-gift-card-o:before{content:"\F060"}.van-icon-gift-card:before{content:"\F061"}.van-icon-gift-o:before{content:"\F062"}.van-icon-gift:before{content:"\F063"}.van-icon-gold-coin-o:before{content:"\F064"}.van-icon-gold-coin:before{content:"\F065"}.van-icon-goods-collect-o:before{content:"\F066"}.van-icon-goods-collect:before{content:"\F067"}.van-icon-graphic:before{content:"\F068"}.van-icon-home-o:before{content:"\F069"}.van-icon-hot-o:before{content:"\F06A"}.van-icon-hot-sale-o:before{content:"\F06B"}.van-icon-hot-sale:before{content:"\F06C"}.van-icon-hot:before{content:"\F06D"}.van-icon-hotel-o:before{content:"\F06E"}.van-icon-idcard:before{content:"\F06F"}.van-icon-info-o:before{content:"\F070"}.van-icon-info:before{content:"\F071"}.van-icon-invition:before{content:"\F072"}.van-icon-label-o:before{content:"\F073"}.van-icon-label:before{content:"\F074"}.van-icon-like-o:before{content:"\F075"}.van-icon-like:before{content:"\F076"}.van-icon-live:before{content:"\F077"}.van-icon-location-o:before{content:"\F078"}.van-icon-location:before{content:"\F079"}.van-icon-lock:before{content:"\F07A"}.van-icon-logistics:before{content:"\F07B"}.van-icon-manager-o:before{content:"\F07C"}.van-icon-manager:before{content:"\F07D"}.van-icon-map-marked:before{content:"\F07E"}.van-icon-medel-o:before{content:"\F07F"}.van-icon-medel:before{content:"\F080"}.van-icon-more-o:before{content:"\F081"}.van-icon-more:before{content:"\F082"}.van-icon-music-o:before{content:"\F083"}.van-icon-new-arrival-o:before{content:"\F084"}.van-icon-new-arrival:before{content:"\F085"}.van-icon-new-o:before{content:"\F086"}.van-icon-new:before{content:"\F087"}.van-icon-newspaper-o:before{content:"\F088"}.van-icon-notes-o:before{content:"\F089"}.van-icon-orders-o:before{content:"\F08A"}.van-icon-other-pay:before{content:"\F08B"}.van-icon-paid:before{content:"\F08C"}.van-icon-passed:before{content:"\F08D"}.van-icon-pause-circle-o:before{content:"\F08E"}.van-icon-pause-circle:before{content:"\F08F"}.van-icon-pause:before{content:"\F090"}.van-icon-peer-pay:before{content:"\F091"}.van-icon-pending-payment:before{content:"\F092"}.van-icon-phone-circle-o:before{content:"\F093"}.van-icon-phone-o:before{content:"\F094"}.van-icon-phone:before{content:"\F095"}.van-icon-photo-o:before{content:"\F096"}.van-icon-photo:before{content:"\F097"}.van-icon-photograph:before{content:"\F098"}.van-icon-play-circle-o:before{content:"\F099"}.van-icon-play-circle:before{content:"\F09A"}.van-icon-play:before{content:"\F09B"}.van-icon-plus:before{content:"\F09C"}.van-icon-point-gift-o:before{content:"\F09D"}.van-icon-point-gift:before{content:"\F09E"}.van-icon-points:before{content:"\F09F"}.van-icon-printer:before{content:"\F0A0"}.van-icon-qr-invalid:before{content:"\F0A1"}.van-icon-qr:before{content:"\F0A2"}.van-icon-question-o:before{content:"\F0A3"}.van-icon-question:before{content:"\F0A4"}.van-icon-records:before{content:"\F0A5"}.van-icon-refund-o:before{content:"\F0A6"}.van-icon-replay:before{content:"\F0A7"}.van-icon-scan:before{content:"\F0A8"}.van-icon-search:before{content:"\F0A9"}.van-icon-send-gift-o:before{content:"\F0AA"}.van-icon-send-gift:before{content:"\F0AB"}.van-icon-service-o:before{content:"\F0AC"}.van-icon-service:before{content:"\F0AD"}.van-icon-setting-o:before{content:"\F0AE"}.van-icon-setting:before{content:"\F0AF"}.van-icon-share:before{content:"\F0B0"}.van-icon-shop-collect-o:before{content:"\F0B1"}.van-icon-shop-collect:before{content:"\F0B2"}.van-icon-shop-o:before{content:"\F0B3"}.van-icon-shop:before{content:"\F0B4"}.van-icon-shopping-cart-o:before{content:"\F0B5"}.van-icon-shopping-cart:before{content:"\F0B6"}.van-icon-shrink:before{content:"\F0B7"}.van-icon-sign:before{content:"\F0B8"}.van-icon-smile-comment-o:before{content:"\F0B9"}.van-icon-smile-comment:before{content:"\F0BA"}.van-icon-smile-o:before{content:"\F0BB"}.van-icon-star-o:before{content:"\F0BC"}.van-icon-star:before{content:"\F0BD"}.van-icon-stop-circle-o:before{content:"\F0BE"}.van-icon-stop-circle:before{content:"\F0BF"}.van-icon-stop:before{content:"\F0C0"}.van-icon-success:before{content:"\F0C1"}.van-icon-thumb-circle-o:before{content:"\F0C2"}.van-icon-todo-list-o:before{content:"\F0C3"}.van-icon-todo-list:before{content:"\F0C4"}.van-icon-tosend:before{content:"\F0C5"}.van-icon-tv-o:before{content:"\F0C6"}.van-icon-umbrella-circle:before{content:"\F0C7"}.van-icon-underway-o:before{content:"\F0C8"}.van-icon-underway:before{content:"\F0C9"}.van-icon-upgrade:before{content:"\F0CA"}.van-icon-user-circle-o:before{content:"\F0CB"}.van-icon-user-o:before{content:"\F0CC"}.van-icon-video-o:before{content:"\F0CD"}.van-icon-video:before{content:"\F0CE"}.van-icon-vip-card-o:before{content:"\F0CF"}.van-icon-vip-card:before{content:"\F0D0"}.van-icon-volume-o:before{content:"\F0D1"}.van-icon-volume:before{content:"\F0D2"}.van-icon-wap-home:before{content:"\F0D3"}.van-icon-wap-nav:before{content:"\F0D4"}.van-icon-warn-o:before{content:"\F0D5"}.van-icon-warning-o:before{content:"\F0D6"}.van-icon-weapp-nav:before{content:"\F0D7"}.van-icon-wechat:before{content:"\F0D8"}.van-icon-youzan-shield:before{content:"\F0D9"}.van-icon--image{width:1em;height:1em}.van-icon__image{position:absolute;top:0;right:0;bottom:0;left:0;max-width:100%;max-height:100%;margin:auto}.van-icon__info{z-index:1}
\ No newline at end of file
diff --git a/lib/notify/index.js b/lib/notify/index.js
index 3b8b4db9..928e4dd9 100644
--- a/lib/notify/index.js
+++ b/lib/notify/index.js
@@ -18,6 +18,10 @@ component_1.VantComponent({
         duration: {
             type: Number,
             value: 3000
+        },
+        zIndex: {
+            type: Number,
+            value: 110
         }
     },
     methods: {
diff --git a/lib/notify/index.wxml b/lib/notify/index.wxml
index 4f480eaa..96f58206 100644
--- a/lib/notify/index.wxml
+++ b/lib/notify/index.wxml
@@ -2,7 +2,7 @@
   name="slide-down"
   show="{{ show }}"
   custom-class="van-notify"
-  custom-style="background-color:{{ backgroundColor }}; color: {{ color }};"
+  custom-style="background-color:{{ backgroundColor }}; color: {{ color }}; z-index: {{ zIndex }};"
 >
   <view wx:if="{{ safeAreaInsetTop }}" class="van-notify__safe-top" style="padding-top: {{ statusBarHeight }}px"></view>
   {{ text }}
diff --git a/lib/notify/index.wxss b/lib/notify/index.wxss
index de9b6203..6c2fccd9 100644
--- a/lib/notify/index.wxss
+++ b/lib/notify/index.wxss
@@ -1 +1 @@
-@import '../common/index.wxss';.van-notify{position:fixed;top:0;z-index:110;width:100%;padding:6px 15px;font-size:14px;line-height:20px;text-align:center;word-break:break-all;box-sizing:border-box}.van-notify__safe-top{height:44px}
\ No newline at end of file
+@import '../common/index.wxss';.van-notify{position:fixed;top:0;width:100%;padding:6px 15px;font-size:14px;line-height:20px;text-align:center;word-break:break-all;box-sizing:border-box}.van-notify__safe-top{height:44px}
\ No newline at end of file
diff --git a/lib/picker-column/index.wxss b/lib/picker-column/index.wxss
index b39acdc8..51426970 100644
--- a/lib/picker-column/index.wxss
+++ b/lib/picker-column/index.wxss
@@ -1 +1 @@
-@import '../common/index.wxss';.van-picker-column{overflow:hidden;font-size:16px;text-align:center}.van-picker-column__item{padding:0 5px;color:#999}.van-picker-column__item--selected{font-weight:500;color:#333}.van-picker-column__item--disabled{opacity:.3}
\ No newline at end of file
+@import '../common/index.wxss';.van-picker-column{overflow:hidden;font-size:16px;color:#999;text-align:center}.van-picker-column__item{padding:0 5px}.van-picker-column__item--selected{font-weight:500;color:#333}.van-picker-column__item--disabled{opacity:.3}
\ No newline at end of file
diff --git a/lib/picker/index.js b/lib/picker/index.js
index 16787579..9a67533d 100644
--- a/lib/picker/index.js
+++ b/lib/picker/index.js
@@ -1,42 +1,38 @@
 "use strict";
+var __assign = (this && this.__assign) || function () {
+    __assign = Object.assign || function(t) {
+        for (var s, i = 1, n = arguments.length; i < n; i++) {
+            s = arguments[i];
+            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
+                t[p] = s[p];
+        }
+        return t;
+    };
+    return __assign.apply(this, arguments);
+};
 Object.defineProperty(exports, "__esModule", { value: true });
 var component_1 = require("../common/component");
-function isSimple(columns) {
-    return columns.length && !columns[0].values;
-}
+var shared_1 = require("./shared");
 component_1.VantComponent({
     classes: ['active-class', 'toolbar-class', 'column-class'],
-    props: {
-        title: String,
-        loading: Boolean,
-        showToolbar: Boolean,
-        confirmButtonText: String,
-        cancelButtonText: String,
-        visibleItemCount: {
-            type: Number,
-            value: 5
-        },
-        valueKey: {
+    props: __assign({}, shared_1.pickerProps, { valueKey: {
             type: String,
             value: 'text'
-        },
-        itemHeight: {
+        }, defaultIndex: {
             type: Number,
-            value: 44
-        },
-        columns: {
+            value: 0
+        }, columns: {
             type: Array,
             value: [],
             observer: function (columns) {
                 if (columns === void 0) { columns = []; }
-                this.simple = isSimple(columns);
+                this.simple = columns.length && !columns[0].values;
                 this.children = this.selectAllComponents('.van-picker__column');
                 if (Array.isArray(this.children) && this.children.length) {
                     this.setColumns().catch(function () { });
                 }
             }
-        }
-    },
+        } }),
     beforeCreate: function () {
         this.children = [];
     },
diff --git a/lib/picker/index.wxml b/lib/picker/index.wxml
index 5bc4b9c8..2a9cead2 100644
--- a/lib/picker/index.wxml
+++ b/lib/picker/index.wxml
@@ -10,7 +10,7 @@
       data-type="cancel"
       bindtap="emit"
     >
-      {{ cancelButtonText || '取消' }}
+      {{ cancelButtonText }}
     </view>
     <view wx:if="{{ title }}" class="van-picker__title van-ellipsis">{{ title }}</view>
     <view
@@ -20,7 +20,7 @@
       data-type="confirm"
       bindtap="emit"
     >
-      {{ confirmButtonText || '确认' }}
+      {{ confirmButtonText }}
     </view>
   </view>
   <view wx:if="{{ loading }}" class="van-picker__loading">
@@ -39,7 +39,7 @@
       custom-class="column-class"
       value-key="{{ valueKey }}"
       initial-options="{{ isSimple(columns) ? item : item.values }}"
-      default-index="{{ item.defaultIndex }}"
+      default-index="{{ item.defaultIndex || defaultIndex }}"
       item-height="{{ itemHeight }}"
       visible-item-count="{{ visibleItemCount }}"
       active-class="active-class"
diff --git a/lib/picker/shared.js b/lib/picker/shared.js
new file mode 100644
index 00000000..060e5abf
--- /dev/null
+++ b/lib/picker/shared.js
@@ -0,0 +1,23 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.pickerProps = {
+    title: String,
+    loading: Boolean,
+    showToolbar: Boolean,
+    cancelButtonText: {
+        type: String,
+        value: '取消'
+    },
+    confirmButtonText: {
+        type: String,
+        value: '确认'
+    },
+    visibleItemCount: {
+        type: Number,
+        value: 5
+    },
+    itemHeight: {
+        type: Number,
+        value: 44
+    }
+};
diff --git a/lib/slider/index.js b/lib/slider/index.js
index adb6c0e6..395a7bc8 100644
--- a/lib/slider/index.js
+++ b/lib/slider/index.js
@@ -52,13 +52,14 @@ component_1.VantComponent({
             this.touchMove(event);
             this.getRect('.van-slider').then(function (rect) {
                 var diff = _this.deltaX / rect.width * 100;
-                _this.updateValue(_this.startValue + diff, false, true);
+                _this.newValue = _this.startValue + diff;
+                _this.updateValue(_this.newValue, false, true);
             });
         },
         onTouchEnd: function () {
             if (this.data.disabled)
                 return;
-            this.updateValue(this.data.value, true);
+            this.updateValue(this.newValue, true);
         },
         onClick: function (event) {
             var _this = this;
diff --git a/lib/submit-bar/index.js b/lib/submit-bar/index.js
index 981955a6..e3f1250f 100644
--- a/lib/submit-bar/index.js
+++ b/lib/submit-bar/index.js
@@ -24,6 +24,10 @@ component_1.VantComponent({
         buttonType: {
             type: String,
             value: 'danger'
+        },
+        decimalLength: {
+            type: Number,
+            value: 2
         }
     },
     computed: {
@@ -31,7 +35,7 @@ component_1.VantComponent({
             return typeof this.data.price === 'number';
         },
         priceStr: function () {
-            return (this.data.price / 100).toFixed(2);
+            return (this.data.price / 100).toFixed(this.data.decimalLength);
         },
         tipStr: function () {
             var tip = this.data.tip;
diff --git a/lib/toast/index.js b/lib/toast/index.js
index ccecefe9..bc373820 100644
--- a/lib/toast/index.js
+++ b/lib/toast/index.js
@@ -25,11 +25,6 @@ component_1.VantComponent({
         }
     },
     methods: {
-        clear: function () {
-            this.set({
-                show: false
-            });
-        },
         // for prevent touchmove
         noop: function () { }
     }
diff --git a/lib/toast/index.wxml b/lib/toast/index.wxml
index 1158d2e1..3e27e2d9 100644
--- a/lib/toast/index.wxml
+++ b/lib/toast/index.wxml
@@ -27,5 +27,7 @@
       <van-icon wx:else class="van-toast__icon" name="{{ type }}" />
       <text wx:if="{{ message }}" class="van-toast__text">{{ message }}</text>
     </block>
+
+    <slot />
   </view>
 </van-transition>
diff --git a/lib/toast/toast.js b/lib/toast/toast.js
index 0dfcad10..731ee5d5 100644
--- a/lib/toast/toast.js
+++ b/lib/toast/toast.js
@@ -33,9 +33,8 @@ function getContext() {
     var pages = getCurrentPages();
     return pages[pages.length - 1];
 }
-var Toast = function (options) {
-    if (options === void 0) { options = {}; }
-    options = __assign({}, currentOptions, parseOptions(options));
+function Toast(toastOptions) {
+    var options = __assign({}, currentOptions, parseOptions(toastOptions));
     var context = options.context || getContext();
     var toast = context.selectComponent(options.selector);
     if (!toast) {
@@ -44,6 +43,12 @@ var Toast = function (options) {
     }
     delete options.context;
     delete options.selector;
+    toast.clear = function () {
+        toast.set({ show: false });
+        if (options.onClose) {
+            options.onClose();
+        }
+    };
     queue.push(toast);
     toast.set(options);
     clearTimeout(toast.timer);
@@ -54,11 +59,13 @@ var Toast = function (options) {
         }, options.duration);
     }
     return toast;
-};
-var createMethod = function (type) { return function (options) { return Toast(__assign({ type: type }, parseOptions(options))); }; };
-['loading', 'success', 'fail'].forEach(function (method) {
-    Toast[method] = createMethod(method);
-});
+}
+var createMethod = function (type) { return function (options) {
+    return Toast(__assign({ type: type }, parseOptions(options)));
+}; };
+Toast.loading = createMethod('loading');
+Toast.success = createMethod('success');
+Toast.fail = createMethod('fail');
 Toast.clear = function () {
     queue.forEach(function (toast) {
         toast.clear();