diff --git a/packages/dialog/dialog.vue b/packages/dialog/dialog.vue
index b67e435d7..49a22647e 100644
--- a/packages/dialog/dialog.vue
+++ b/packages/dialog/dialog.vue
@@ -1,6 +1,6 @@
 <template>
   <transition name="van-dialog-bounce">
-    <div v-show="value" :class="b()">
+    <div v-show="value" :class="[b(), className]">
       <div v-if="title" v-text="title" :class="b('header')" />
       <div :class="b('content')" class="van-hairline">
         <slot>
@@ -49,6 +49,7 @@ export default create({
     title: String,
     message: String,
     callback: Function,
+    className: [String, Object, Array],
     beforeClose: Function,
     confirmButtonText: String,
     cancelButtonText: String,
diff --git a/packages/dialog/en-US.md b/packages/dialog/en-US.md
index 52e050ace..714886826 100644
--- a/packages/dialog/en-US.md
+++ b/packages/dialog/en-US.md
@@ -70,9 +70,10 @@ export default {
 |-----------|-----------|-----------|-------------|
 | title | Title | `String` | - |
 | message | Message | `String` | - |
-| showConfirmButton | Whether to show confirm button | `Boolean` |  `true` |
-| showCancelButton | Whether to show cancel button | `Boolean` |  `false` |
-| confirmButtonText | Confirm button text | `String` |  `Confirm` |
+| className | Custom className | `String | Array | Object` | - |
+| showConfirmButton | Whether to show confirm button | `Boolean` | `true` |
+| showCancelButton | Whether to show cancel button | `Boolean` | `false` |
+| confirmButtonText | Confirm button text | `String` | `Confirm` |
 | cancelButtonText | Cancel button test | `String` | `Cancel` |
 | overlay | Whether to show overlay | `Boolean` | `true` |
 | closeOnClickOverlay | Whether to close when click overlay | `Boolean` | `false` |
diff --git a/packages/dialog/index.js b/packages/dialog/index.js
index fcec9175a..c2b4e6d39 100644
--- a/packages/dialog/index.js
+++ b/packages/dialog/index.js
@@ -34,6 +34,7 @@ Dialog.defaultOptions = {
   title: '',
   message: '',
   overlay: true,
+  className: '',
   lockScroll: true,
   beforeClose: null,
   confirmButtonText: '',
diff --git a/packages/dialog/zh-CN.md b/packages/dialog/zh-CN.md
index 4bb22ae24..8011299e0 100644
--- a/packages/dialog/zh-CN.md
+++ b/packages/dialog/zh-CN.md
@@ -71,9 +71,10 @@ export default {
 |-----------|-----------|-----------|-------------|
 | title | 标题 | `String` | - |
 | message | 内容 | `String` | - |
-| showConfirmButton | 是否展示确认按钮 | `Boolean` |  `true` |
-| showCancelButton | 是否展示取消按钮 | `Boolean` |  `false` |
-| confirmButtonText | 确认按钮的文案 | `String` |  `确认` |
+| className | 自定义类名 | `String | Array | Object` | - |
+| showConfirmButton | 是否展示确认按钮 | `Boolean` | `true` |
+| showCancelButton | 是否展示取消按钮 | `Boolean` | `false` |
+| confirmButtonText | 确认按钮的文案 | `String` | `确认` |
 | cancelButtonText | 取消按钮的文案 | `String` | `取消` |
 | overlay | 是否展示蒙层 | `Boolean` | `true` |
 | closeOnClickOverlay | 点击蒙层时是否关闭弹窗 | `Boolean` | `false` |
diff --git a/packages/field/en-US.md b/packages/field/en-US.md
index e9e633932..3a2ba7e28 100644
--- a/packages/field/en-US.md
+++ b/packages/field/en-US.md
@@ -114,7 +114,7 @@ Field support all native properties of input tag，such as `maxlength`、`placeh
 
 | Attribute | Description | Type | Default |
 |-----------|-----------|-----------|-------------|
-| value | Field value | `String` | - |
+| value | Field value | `String | Number` | - |
 | label | Field label | `String` | - |
 | type | Input type | `String` | `text` |
 | disabled | Disable field | `Boolean` | `false` |
diff --git a/packages/field/index.vue b/packages/field/index.vue
index f5a597b4b..0337f9ae7 100644
--- a/packages/field/index.vue
+++ b/packages/field/index.vue
@@ -8,7 +8,7 @@
     :class="b({
       error,
       disabled: $attrs.disabled,
-      'has-icon': hasIcon,
+      'has-icon': showIcon,
       'min-height': type === 'textarea' && !autosize
     })"
   >
@@ -35,8 +35,7 @@
       :class="b('error-message')"
     />
     <div
-      v-if="hasIcon"
-      v-show="$slots.icon || value"
+      v-if="showIcon"
       :class="b('icon')"
       @touchstart.prevent="onClickIcon"
     >
@@ -60,7 +59,7 @@ export default create({
   inheritAttrs: false,
 
   props: {
-    value: null,
+    value: [String, Number],
     icon: String,
     label: String,
     error: Boolean,
@@ -91,8 +90,8 @@ export default create({
   },
 
   computed: {
-    hasIcon() {
-      return this.$slots.icon || this.icon;
+    showIcon() {
+      return this.$slots.icon || (this.icon && this.value !== '' && this.isDef(this.value));
     },
 
     listeners() {
@@ -117,7 +116,7 @@ export default create({
     onKeypress(event) {
       if (this.type === 'number') {
         const { keyCode } = event;
-        const allowPoint = this.value.indexOf('.') === -1;
+        const allowPoint = String(this.value).indexOf('.') === -1;
         const isValidKey = (keyCode >= 48 && keyCode <= 57) || (keyCode === 46 && allowPoint) || keyCode === 45;
         if (!isValidKey) {
           event.preventDefault();
diff --git a/packages/field/test/__snapshots__/demo.spec.js.snap b/packages/field/test/__snapshots__/demo.spec.js.snap
index 0921f9529..bb94c1097 100644
--- a/packages/field/test/__snapshots__/demo.spec.js.snap
+++ b/packages/field/test/__snapshots__/demo.spec.js.snap
@@ -19,7 +19,7 @@ exports[`renders demo correctly 1`] = `
   </div>
   <div>
     <div class="van-cell-group van-hairline--top-bottom">
-      <div placeholder="请输入用户名" class="van-cell van-cell--required van-hairline van-field van-field--has-icon">
+      <div placeholder="请输入用户名" class="van-cell van-cell--required van-hairline van-field">
         <!---->
         <div class="van-cell__title"><span>用户名</span>
           <!---->
@@ -27,11 +27,7 @@ exports[`renders demo correctly 1`] = `
         <div class="van-cell__value">
           <input type="text" placeholder="请输入用户名" value="" class="van-field__control">
           <!---->
-          <div class="van-field__icon" style="display:none;">
-            <i class="van-icon van-icon-clear" style="color:undefined;">
-              <!---->
-            </i>
-          </div>
+          <!---->
           <!---->
         </div>
         <!---->
@@ -119,7 +115,7 @@ exports[`renders demo correctly 1`] = `
   </div>
   <div>
     <div class="van-cell-group van-hairline--top-bottom">
-      <div placeholder="请输入短信验证码" class="van-cell van-cell--center van-hairline van-field van-field--has-icon">
+      <div placeholder="请输入短信验证码" class="van-cell van-cell--center van-hairline van-field">
         <!---->
         <div class="van-cell__title"><span>短信验证码</span>
           <!---->
@@ -127,11 +123,7 @@ exports[`renders demo correctly 1`] = `
         <div class="van-cell__value">
           <input type="text" placeholder="请输入短信验证码" value="" class="van-field__control">
           <!---->
-          <div class="van-field__icon" style="display:none;">
-            <i class="van-icon van-icon-clear" style="color:undefined;">
-              <!---->
-            </i>
-          </div>
+          <!---->
         </div>
         <!---->
         <div class="van-field__button">
diff --git a/packages/field/test/field.spec.js b/packages/field/test/field.spec.js
index 80c5b3ab4..2d40b2adf 100644
--- a/packages/field/test/field.spec.js
+++ b/packages/field/test/field.spec.js
@@ -14,6 +14,7 @@ test('click icon event', () => {
   const onIconClick = jest.fn();
   const wrapper = mount(Field, {
     propsData: {
+      value: 'a',
       icon: 'search',
       onIconClick
     }
diff --git a/packages/field/zh-CN.md b/packages/field/zh-CN.md
index d7300b784..71abb34f3 100644
--- a/packages/field/zh-CN.md
+++ b/packages/field/zh-CN.md
@@ -117,7 +117,7 @@ Field 默认支持 Input 标签所有的原生属性，比如 `maxlength`、`pla
 | 参数 | 说明 | 类型 | 默认值 |
 |-----------|-----------|-----------|-------------|-------------|
 | label | 标签 | `String` | - |
-| value | 当前输入的值 | `String` | - |
+| value | 当前输入的值 | `String | Number` | - |
 | type | 可设置为任意原生类型, 如 `number` `tel` `textarea` | `String` | `text` |
 | disabled | 是否禁用输入框 | `Boolean` | `false` |
 | error | 是否将输入内容标红 | `Boolean` | `false` |
diff --git a/packages/picker/en-US.md b/packages/picker/en-US.md
index 3e75da986..e18755ac9 100644
--- a/packages/picker/en-US.md
+++ b/packages/picker/en-US.md
@@ -156,18 +156,19 @@ Picker events will pass different parameters according to the columns are single
 | defaultIndex | Default value index |
 | className | ClassName for this column |
 
-### Picker instance
-You can get the picker instance in 'change' event, and 
+### Methods
 
-| Method | Description |
-|-----------|-----------|
-| getValues() | Get current values of all columns |
-| setValues(values) | Set current values of all columns |
-| getIndexes() | Get current indexes of all columns |
-| setIndexes(indexes) | Set current indexes of all columns |
-| getColumnValue(columnIndex) | Get current value of the column |
-| setColumnValue(columnIndex, value) | Set current value of the column |
-| getColumnIndex(columnIndex) | Get current index of the column |
-| setColumnIndex(columnIndex, optionIndex) | Set current index of the column |
-| getColumnValues(columnIndex) | Get columns data of the column |
-| setColumnValues(columnIndex, values) | Set columns data of the column |
+Use ref to get picker instance and call instance methods
+
+| Name | Attribute | Return value | Description |
+|-----------|-----------|-----------|-------------|
+| getValues | - | values | Get current values of all columns |
+| setValues | values | - |  Set current values of all columns |
+| getIndexes | - | indexes | Get current indexes of all columns |
+| setIndexes | indexes | - | Set current indexes of all columns |
+| getColumnValue | columnIndex | value | Get current value of the column |
+| setColumnValue | columnIndex, value | - | Set current value of the column |
+| getColumnIndex | columnIndex | optionIndex | Get current index of the column |
+| setColumnIndex | columnIndex, optionIndex | - | Set current index of the column |
+| getColumnValues | columnIndex | values | Get columns data of the column |
+| setColumnValue | columnIndex, values | - | Set columns data of the column |
diff --git a/packages/picker/zh-CN.md b/packages/picker/zh-CN.md
index 0824a3f6a..be9c4a0a5 100644
--- a/packages/picker/zh-CN.md
+++ b/packages/picker/zh-CN.md
@@ -159,18 +159,19 @@ Picker 组件的事件会根据 columns 是单列或多列返回不同的参数
 | defaultIndex | 初始选中项的索引，默认为 0 |
 | className | 为对应列添加额外的`class` |
 
-### Picker 实例
-在`change`事件中，可以获取到`picker`实例，通过实例方法可以灵活控制 Picker 内容
+### 方法
 
-| 函数 | 说明 |
-|-----------|-----------|
-| getValues() | 获取所有列选中的值，返回一个数组 |
-| setValues(values) | 设置所有列选中的值 |
-| getIndexes() | 获取所有列选中值对应的索引，返回一个数组 |
-| setIndexes(indexes) | 设置所有列选中值对应的索引 |
-| getColumnValue(columnIndex) | 获取对应列选中的值 |
-| setColumnValue(columnIndex, value) | 设置对应列选中的值 |
-| getColumnIndex(columnIndex) | 获取对应列选中项的索引 |
-| setColumnIndex(columnIndex, optionIndex) | 设置对应列选中项的索引 |
-| getColumnValues(columnIndex) | 获取对应列中所有选项 |
-| setColumnValues(columnIndex, values) | 设置对应列中所有选项 |
+通过 ref 可以获取到 picker 实例并调用实例方法
+
+| 方法名 | 参数 | 返回值 | 介绍 |
+|-----------|-----------|-----------|-------------|
+| getValues | - | values | 获取所有列选中的值 |
+| setValues | values | - | 设置所有列选中的值 |
+| getIndexes | - | indexes | 获取所有列选中值对应的索引 |
+| setIndexes | indexes | - | 设置所有列选中值对应的索引 |
+| getColumnValue | columnIndex | value | 获取对应列选中的值 |
+| setColumnValue | columnIndex, value | - | 设置对应列选中的值 |
+| getColumnIndex | columnIndex | optionIndex | 获取对应列选中项的索引 |
+| setColumnIndex | columnIndex, optionIndex | - | 设置对应列选中项的索引 |
+| getColumnValues | columnIndex | values | 获取对应列中所有选项 |
+| setColumnValue | columnIndex, values | - | 设置对应列中所有选项 |
diff --git a/packages/search/test/__snapshots__/demo.spec.js.snap b/packages/search/test/__snapshots__/demo.spec.js.snap
index f01da008c..965e7043a 100644
--- a/packages/search/test/__snapshots__/demo.spec.js.snap
+++ b/packages/search/test/__snapshots__/demo.spec.js.snap
@@ -7,17 +7,13 @@ exports[`renders demo correctly 1`] = `
       <i class="van-icon van-icon-search" style="color:undefined;">
         <!---->
       </i>
-      <div placeholder="请输入商品名称" class="van-cell van-field van-field--has-icon">
+      <div placeholder="请输入商品名称" class="van-cell van-field">
         <!---->
         <!---->
         <div class="van-cell__value van-cell__value--alone">
           <input type="search" placeholder="请输入商品名称" value="" class="van-field__control">
           <!---->
-          <div class="van-field__icon" style="display:none;">
-            <i class="van-icon van-icon-clear" style="color:undefined;">
-              <!---->
-            </i>
-          </div>
+          <!---->
           <!---->
         </div>
         <!---->
@@ -31,17 +27,13 @@ exports[`renders demo correctly 1`] = `
         <i class="van-icon van-icon-search" style="color:undefined;">
           <!---->
         </i>
-        <div placeholder="请输入商品名称" class="van-cell van-field van-field--has-icon">
+        <div placeholder="请输入商品名称" class="van-cell van-field">
           <!---->
           <!---->
           <div class="van-cell__value van-cell__value--alone">
             <input type="search" placeholder="请输入商品名称" value="" class="van-field__control">
             <!---->
-            <div class="van-field__icon" style="display:none;">
-              <i class="van-icon van-icon-clear" style="color:undefined;">
-                <!---->
-              </i>
-            </div>
+            <!---->
             <!---->
           </div>
           <!---->
@@ -57,17 +49,13 @@ exports[`renders demo correctly 1`] = `
       <i class="van-icon van-icon-search" style="color:undefined;">
         <!---->
       </i>
-      <div class="van-cell van-field van-field--has-icon">
+      <div class="van-cell van-field">
         <!---->
         <!---->
         <div class="van-cell__value van-cell__value--alone">
           <input type="search" value="" class="van-field__control">
           <!---->
-          <div class="van-field__icon" style="display:none;">
-            <i class="van-icon van-icon-clear" style="color:undefined;">
-              <!---->
-            </i>
-          </div>
+          <!---->
           <!---->
         </div>
         <!---->
diff --git a/packages/sku/en-US.md b/packages/sku/en-US.md
index 7b18d1dc2..a11141abb 100644
--- a/packages/sku/en-US.md
+++ b/packages/sku/en-US.md
@@ -111,9 +111,11 @@ Vue.use(Sku);
 
 ### Methods
 
-| Method | Description |
-|-----------|-----------|
-| getSkuData() | Get current sku data |
+Use ref to get sku instance and call instance methods
+
+| Name | Attribute | Return value | Description |
+|-----------|-----------|-----------|-------------|
+| getSkuData | - | skuData | Get current skuData |
 
 ### Slot
 
diff --git a/packages/sku/zh-CN.md b/packages/sku/zh-CN.md
index c18d09c36..fc143c913 100644
--- a/packages/sku/zh-CN.md
+++ b/packages/sku/zh-CN.md
@@ -112,11 +112,14 @@ Vue.use(Sku);
 
 ### 方法
 
-| 函数 | 说明 |
-|-----------|-----------|
-| getSkuData() | 获取当前 skuData |
+通过 ref 可以获取到 sku 实例并调用实例方法
+
+| 方法名 | 参数 | 返回值 | 介绍 |
+|-----------|-----------|-----------|-------------|
+| getSkuData | - | skuData | 获取当前 skuData |
 
 ### Slot
+
 Sku 组件默认划分好了若干区块，这些区块都定义成了 slot，可以按需进行替换。区块顺序见下表：
 
 | 名称 | 说明 | 
diff --git a/packages/swipe/en-US.md b/packages/swipe/en-US.md
index bbd0d7329..9d31625d3 100644
--- a/packages/swipe/en-US.md
+++ b/packages/swipe/en-US.md
@@ -94,3 +94,11 @@ export default {
 | Event | Description | Arguments |
 |-----------|-----------|-----------|
 | change | Triggered when current swipe change | index: index of current swipe |
+
+### Methods
+
+Use ref to get swipe instance and call instance methods
+
+| Name | Attribute | Return value | Description |
+|-----------|-----------|-----------|-------------|
+| swipeTo | index: 目标位置的索引 | void | 滚动到目标位置 |
diff --git a/packages/swipe/index.vue b/packages/swipe/index.vue
index 228926a5d..b19eed5b3 100644
--- a/packages/swipe/index.vue
+++ b/packages/swipe/index.vue
@@ -90,6 +90,8 @@ export default create({
     autoplay(autoplay) {
       if (!autoplay) {
         this.clear();
+      } else {
+        this.autoPlay();
       }
     }
   },
@@ -206,6 +208,15 @@ export default create({
       this.offset = offset - this.active * this.size;
     },
 
+    swipeTo(index) {
+      this.swiping = true;
+      this.correctPosition();
+      setTimeout(() => {
+        this.swiping = false;
+        this.move(index % this.count - this.active);
+      }, 30);
+    },
+
     correctPosition() {
       if (this.active <= -1) {
         this.move(this.count);
@@ -221,6 +232,7 @@ export default create({
 
     autoPlay() {
       const { autoplay } = this;
+
       if (autoplay && this.count > 1) {
         this.clear();
         this.timer = setTimeout(() => {
diff --git a/packages/swipe/test/index.spec.js b/packages/swipe/test/index.spec.js
new file mode 100644
index 000000000..608b30195
--- /dev/null
+++ b/packages/swipe/test/index.spec.js
@@ -0,0 +1,154 @@
+import Swipe from '..';
+import SwipeItem from '../../swipe-item';
+import { mount } from '@vue/test-utils';
+import { triggerDrag } from '../../../test/utils';
+
+const Component = {
+  template: `
+    <swipe ref="swipe" v-bind="$props">
+      <swipe-item :style="style">1</swipe-item>
+      <swipe-item :style="style">2</swipe-item>
+      <swipe-item :style="style">3</swipe-item>
+    </swipe>
+  `,
+  components: {
+    Swipe,
+    SwipeItem
+  },
+  props: {
+    vertical: Boolean,
+    loop: {
+      type: Boolean,
+      default: true
+    },
+    touchable: {
+      type: Boolean,
+      default: true
+    },
+    autoplay: {
+      type: Number,
+      default: 0
+    },
+    initialSwipe: {
+      type: Number,
+      default: 0
+    }
+  },
+  data() {
+    return {
+      style: {
+        width: '100px',
+        height: '100px'
+      }
+    };
+  }
+};
+
+test('autoplay', done => {
+  const wrapper = mount(Component, {
+    propsData: {
+      autoplay: 20
+    }
+  });
+  const { swipe } = wrapper.vm.$refs;
+
+  setTimeout(() => {
+    expect(swipe.active).toEqual(1);
+    wrapper.setData({ autoplay: 0 });
+
+    setTimeout(() => {
+      expect(swipe.active).toEqual(1);
+      wrapper.setData({ autoplay: 20 });
+
+      setTimeout(() => {
+        expect(swipe.active).toEqual(2);
+        wrapper.destroy();
+        done();
+      }, 60);
+    }, 60);
+  }, 60);
+});
+
+test('swipeTo', done => {
+  const wrapper = mount(Component);
+  const { swipe } = wrapper.vm.$refs;
+  swipe.swipeTo(2);
+
+  setTimeout(() => {
+    expect(swipe.active).toEqual(2);
+    done();
+  }, 30);
+});
+
+test('initial swipe', () => {
+  const wrapper = mount(Component);
+  const { swipe } = wrapper.vm.$refs;
+
+  expect(swipe.active).toEqual(0);
+  wrapper.setProps({ initialSwipe: 2 });
+  expect(swipe.active).toEqual(2);
+});
+
+test('vertical swipe', () => {
+  const wrapper = mount(Component, {
+    propsData: {
+      vertical: true
+    }
+  });
+  const { swipe } = wrapper.vm.$refs;
+  const track = wrapper.find('.van-swipe__track');
+
+  triggerDrag(track, 0, -100);
+  expect(swipe.active).toEqual(1);
+});
+
+test('untouchable', () => {
+  const wrapper = mount(Component, {
+    propsData: {
+      touchable: false
+    }
+  });
+  const { swipe } = wrapper.vm.$refs;
+  const track = wrapper.find('.van-swipe__track');
+
+  triggerDrag(track, 100, 0);
+  expect(swipe.active).toEqual(0);
+});
+
+test('loop', () => {
+  const wrapper = mount(Component);
+  const { swipe } = wrapper.vm.$refs;
+  const track = wrapper.find('.van-swipe__track');
+
+  triggerDrag(track, -100, 0);
+  expect(swipe.active).toEqual(1);
+  triggerDrag(track, -100, 0);
+  expect(swipe.active).toEqual(2);
+  triggerDrag(track, -100, 0);
+  expect(swipe.active).toEqual(3);
+  triggerDrag(track, -100, 0);
+  expect(swipe.active).toEqual(1);
+  triggerDrag(track, 100, 0);
+  expect(swipe.active).toEqual(0);
+  triggerDrag(track, 100, 0);
+  expect(swipe.active).toEqual(-1);
+  triggerDrag(track, 100, 0);
+  expect(swipe.active).toEqual(1);
+});
+
+test('not loop', () => {
+  const wrapper = mount(Component, {
+    propsData: {
+      loop: false
+    }
+  });
+  const { swipe } = wrapper.vm.$refs;
+  const track = wrapper.find('.van-swipe__track');
+
+  triggerDrag(track, -100, 0);
+  expect(swipe.active).toEqual(1);
+  triggerDrag(track, -100, 0);
+  expect(swipe.active).toEqual(2);
+  triggerDrag(track, -100, 0);
+  expect(swipe.active).toEqual(2);
+});
diff --git a/packages/swipe/zh-CN.md b/packages/swipe/zh-CN.md
index bcbdcdd7d..dd15e7089 100644
--- a/packages/swipe/zh-CN.md
+++ b/packages/swipe/zh-CN.md
@@ -94,3 +94,11 @@ export default {
 | 事件名 | 说明 | 参数 |
 |-----------|-----------|-----------|
 | change | 每一页轮播结束后触发 | index, 当前页的索引 |
+
+### 方法
+
+通过 ref 可以获取到 swipe 实例并调用实例方法
+
+| 方法名 | 参数 | 返回值 | 介绍 |
+|-----------|-----------|-----------|-------------|
+| swipeTo | index: 目标位置的索引 | void | 滚动到目标位置 |