diff --git a/dist/cell/index.wxml b/dist/cell/index.wxml
index 70866015..ee92995f 100644
--- a/dist/cell/index.wxml
+++ b/dist/cell/index.wxml
@@ -11,14 +11,15 @@
   <slot wx:else name="icon" />
 
   <view
-    wx:if="{{ title }}"
     style="{{ titleStyle }}"
     class="van-cell__title title-class"
   >
-    {{ title }}
-    <view wx:if="{{ label }}" class="van-cell__label label-class">{{ label }}</view>
+    <block wx:if="{{ title }}">
+      {{ title }}
+      <view wx:if="{{ label }}" class="van-cell__label label-class">{{ label }}</view>
+    </block>
+    <slot wx:else name="title" />
   </view>
-  <slot name="title" />
 
   <view class="van-cell__value value-class">
     <view wx:if="{{ value }}">{{ value }}</view>
diff --git a/dist/radio-group/index.js b/dist/radio-group/index.js
new file mode 100644
index 00000000..f42c9c4c
--- /dev/null
+++ b/dist/radio-group/index.js
@@ -0,0 +1,37 @@
+import { VantComponent } from '../common/component';
+
+VantComponent({
+  relations: {
+    '../radio/index': {
+      type: 'descendant',
+      linked(target) {
+        const { value, disabled } = this.data;
+        target.setData({
+          value: value,
+          disabled: disabled || target.data.disabled
+        });
+      }
+    }
+  },
+
+  props: {
+    value: {
+      type: null,
+      observer(value) {
+        const children = this.getRelationNodes('../radio/index');
+        children.forEach(child => {
+          child.setData({ value });
+        });
+      }
+    },
+    disabled: {
+      type: Boolean,
+      observer(disabled) {
+        const children = this.getRelationNodes('../radio/index');
+        children.forEach(child => {
+          child.setData({ disabled: disabled || children.data.disabled });
+        });
+      }
+    }
+  }
+});
diff --git a/dist/radio-group/index.json b/dist/radio-group/index.json
new file mode 100644
index 00000000..0a336c08
--- /dev/null
+++ b/dist/radio-group/index.json
@@ -0,0 +1,6 @@
+{
+  "component": true,
+  "usingComponents": {
+    "van-icon": "../icon/index"
+  }
+}
diff --git a/dist/radio-group/index.wxml b/dist/radio-group/index.wxml
new file mode 100644
index 00000000..775ee3ce
--- /dev/null
+++ b/dist/radio-group/index.wxml
@@ -0,0 +1,3 @@
+<view class="custom-class">
+  <slot />
+</view>
diff --git a/dist/radio-group/index.wxss b/dist/radio-group/index.wxss
new file mode 100644
index 00000000..6f56fe43
--- /dev/null
+++ b/dist/radio-group/index.wxss
@@ -0,0 +1 @@
+.van-radio{overflow:hidden;-webkit-user-select:none;user-select:none}.van-radio__input,.van-radio__label{display:inline-block;vertical-align:middle}.van-radio__input{height:1em;position:relative;font-size:20px}.van-radio__control{z-index:1;position:absolute;top:0;left:0;opacity:0;margin:0;width:100%;height:100%}.van-radio__label{line-height:20px;margin-left:10px}.van-radio__label--left{float:left;margin:0 10px 0 0}.van-radio__icon{width:1em;pointer-events:none}.van-radio__icon--disabled{color:#e5e5e5}.van-radio__icon--checked{color:#06bf04}.van-radio__icon--check{color:#999}
\ No newline at end of file
diff --git a/dist/radio/index.js b/dist/radio/index.js
new file mode 100644
index 00000000..280e2c1f
--- /dev/null
+++ b/dist/radio/index.js
@@ -0,0 +1,49 @@
+import { VantComponent } from '../common/component';
+
+VantComponent({
+  relations: {
+    '../radio-group/index': {
+      type: 'ancestor'
+    }
+  },
+
+  classes: ['icon-class', 'label-class'],
+
+  props: {
+    name: null,
+    value: null,
+    disabled: Boolean,
+    labelDisabled: Boolean,
+    labelPosition: String
+  },
+
+  computed: {
+    iconClass() {
+      const { disabled, name, value } = this.data;
+      return this.classNames('van-radio__icon', {
+        'van-radio__icon--disabled': disabled,
+        'van-radio__icon--checked': !disabled && name === value,
+        'van-radio__icon--check': !disabled && name !== value
+      });
+    }
+  },
+
+  methods: {
+    emitChange(value) {
+      const parent = this.getRelationNodes('../radio-group/index')[0];
+      (parent || this).$emit('input', value);
+      (parent || this).$emit('change', value);
+    },
+
+    onChange(event) {
+      const { value } = event.detail;
+      this.emitChange(value);
+    },
+
+    onClickLabel() {
+      if (!this.data.disabled && !this.data.labelDisabled) {
+        this.emitChange(this.data.name);
+      }
+    }
+  }
+});
diff --git a/dist/radio/index.json b/dist/radio/index.json
new file mode 100644
index 00000000..0a336c08
--- /dev/null
+++ b/dist/radio/index.json
@@ -0,0 +1,6 @@
+{
+  "component": true,
+  "usingComponents": {
+    "van-icon": "../icon/index"
+  }
+}
diff --git a/dist/radio/index.wxml b/dist/radio/index.wxml
new file mode 100644
index 00000000..011a7e0e
--- /dev/null
+++ b/dist/radio/index.wxml
@@ -0,0 +1,16 @@
+<view class="van-radio custom-class">
+  <view class="van-radio__input">
+    <radio-group bindchange="onChange">
+      <radio
+        value="{{ name }}"
+        checked="{{ value === name }}"
+        disabled="{{ disabled }}"
+        class="van-radio__control"
+      />
+    </radio-group>
+    <van-icon class="{{ iconClass }}" custom-class="icon-class" name="{{ value === name ? 'checked' : 'check' }}" />
+  </view>
+  <view class="van-radio__label van-radio__label--{{ labelPosition }} label-class" bindtap="onClickLabel">
+    <slot />
+  </view>
+</view>
diff --git a/dist/radio/index.wxss b/dist/radio/index.wxss
new file mode 100644
index 00000000..b6c34285
--- /dev/null
+++ b/dist/radio/index.wxss
@@ -0,0 +1 @@
+.van-radio{overflow:hidden;line-height:1;-webkit-user-select:none;user-select:none}.van-radio__input,.van-radio__label{display:inline-block;vertical-align:middle}.van-radio__input{position:relative;font-size:20px}.van-radio__control{z-index:1;position:absolute;top:0;left:0;width:100%;height:100%;margin:0;opacity:0}.van-radio__label{margin-left:10px;color:#333;font-size:16px;line-height:20px}.van-radio__label--left{margin:0 10px 0 0;float:left}.van-radio__icon{pointer-events:none;display:block;line-height:0}.van-radio__icon--disabled{color:#e5e5e5}.van-radio__icon--checked{color:#06bf04}.van-radio__icon--check{color:#999}
\ No newline at end of file
diff --git a/dist/search/index.js b/dist/search/index.js
index ebcee417..8729f641 100644
--- a/dist/search/index.js
+++ b/dist/search/index.js
@@ -24,6 +24,7 @@ VantComponent({
 
   methods: {
     onChange(event) {
+      this.setData({ value: event.detail });
       this.$emit('change', event.detail);
     },
 
diff --git a/dist/steps/index.wxml b/dist/steps/index.wxml
index 01f9f534..8490bb6b 100644
--- a/dist/steps/index.wxml
+++ b/dist/steps/index.wxml
@@ -13,6 +13,6 @@
       <view class="van-step__circle" wx:if="{{ item.status !== 'process' }}" style="{{ item.status === 'finish' ? 'background-color: ' + activeColor : '' }}" />
       <van-icon wx:else name="checked" color="{{ activeColor }}" custom-class="van-step__active" />
     </view>
-    <view class="van-step__line" style="{{ item.status === 'finish' ? 'background-color: ' + activeColor : '' }}" />
+    <view wx:if="{{ index !== steps.length - 1 }}" class="van-step__line" style="{{ item.status === 'finish' ? 'background-color: ' + activeColor : '' }}" />
   </view>
 </view>
diff --git a/dist/steps/index.wxss b/dist/steps/index.wxss
index d22c1cb2..3f22cce6 100644
--- a/dist/steps/index.wxss
+++ b/dist/steps/index.wxss
@@ -1 +1 @@
-.van-hairline,.van-hairline--bottom,.van-hairline--left,.van-hairline--right,.van-hairline--surround,.van-hairline--top,.van-hairline--top-bottom{position:relative}.van-hairline--bottom::after,.van-hairline--left::after,.van-hairline--right::after,.van-hairline--surround::after,.van-hairline--top-bottom::after,.van-hairline--top::after,.van-hairline::after{content:'';position:absolute;top:-50%;left:-50%;right:-50%;bottom:-50%;-webkit-transform:scale(.5);transform:scale(.5);pointer-events:none;box-sizing:border-box;-webkit-transform-origin:center;transform-origin:center;border:0 solid #eee}.van-hairline--top::after{border-top-width:1px}.van-hairline--left::after{border-left-width:1px}.van-hairline--right::after{border-right-width:1px}.van-hairline--bottom::after{border-bottom-width:1px}.van-hairline--top-bottom::after{border-width:1px 0}.van-hairline--surround::after{border-width:1px}.van-steps{overflow:hidden;background-color:#fff}.van-steps--horizontal{display:-webkit-box;display:-webkit-flex;display:flex;overflow:hidden;position:relative;padding:10px 10px 15px}.van-steps--vertical{padding:0 0 0 35px}.van-step{-webkit-box-flex:1;-webkit-flex:1;flex:1;font-size:14px;position:relative;color:#999}.van-step--finish{color:#333}.van-step__circle{width:5px;height:5px;background-color:#999;border-radius:50%}.van-step--horizontal{float:left;padding-bottom:10px}.van-step--horizontal:first-child .van-step__title{-webkit-transform:none;transform:none;margin-left:0}.van-step--horizontal:last-child{position:absolute;right:10px;width:auto}.van-step--horizontal:last-child .van-step__title{-webkit-transform:none;transform:none;margin-left:0;text-align:right}.van-step--horizontal:last-child .van-step__circle-container{left:auto;right:-9px}.van-step--horizontal:last-child .van-step__line{width:0}.van-step--horizontal .van-step__circle-container{position:absolute;bottom:0;left:-8px;padding:0 8px;background-color:#fff;z-index:1}.van-step--horizontal .van-step__title{font-size:12px;-webkit-transform:translate3d(-50%,0,0);transform:translate3d(-50%,0,0);display:inline-block;margin-left:3px}.van-step--horizontal .van-step__line{position:absolute;left:0;bottom:2px;width:100%;height:1px;background-color:#eee}.van-step--horizontal.van-step--process{color:#333}.van-step--horizontal.van-step--process .van-step__circle-container{bottom:-4px}.van-step--horizontal.van-step--process .van-step__active{font-size:12px;color:#06bf04;display:block;line-height:1}.van-step--vertical{font-size:14px;line-height:18px;padding:10px 10px 10px 0}.van-step--vertical:not(:last-child)::after{border-bottom-width:1px}.van-step--vertical:first-child::before{content:'';position:absolute;width:1px;height:20px;background-color:#fff;top:0;left:-15px;z-index:1}.van-step--vertical .van-step__active,.van-step--vertical .van-step__circle{z-index:2;position:absolute}.van-step--vertical .van-step__active{top:12px;left:-20px;line-height:1;font-size:12px}.van-step--vertical .van-step__circle{top:16px;left:-17px}.van-step--vertical .van-step__line{position:absolute;top:0;left:-15px;width:1px;height:100%;background-color:#eee}
\ No newline at end of file
+.van-hairline,.van-hairline--bottom,.van-hairline--left,.van-hairline--right,.van-hairline--surround,.van-hairline--top,.van-hairline--top-bottom{position:relative}.van-hairline--bottom::after,.van-hairline--left::after,.van-hairline--right::after,.van-hairline--surround::after,.van-hairline--top-bottom::after,.van-hairline--top::after,.van-hairline::after{content:'';position:absolute;top:-50%;left:-50%;right:-50%;bottom:-50%;-webkit-transform:scale(.5);transform:scale(.5);pointer-events:none;box-sizing:border-box;-webkit-transform-origin:center;transform-origin:center;border:0 solid #eee}.van-hairline--top::after{border-top-width:1px}.van-hairline--left::after{border-left-width:1px}.van-hairline--right::after{border-right-width:1px}.van-hairline--bottom::after{border-bottom-width:1px}.van-hairline--top-bottom::after{border-width:1px 0}.van-hairline--surround::after{border-width:1px}.van-steps{overflow:hidden;background-color:#fff}.van-steps--horizontal{position:relative;display:-webkit-box;display:-webkit-flex;display:flex;overflow:hidden;padding:10px 10px 15px}.van-steps--vertical{padding:0 0 0 35px}.van-step{position:relative;-webkit-box-flex:1;-webkit-flex:1;flex:1;font-size:14px;color:#999}.van-step--finish{color:#333}.van-step__circle{width:5px;height:5px;background-color:#999;border-radius:50%}.van-step--horizontal{padding-bottom:14px}.van-step--horizontal:first-child .van-step__title{-webkit-transform:none;transform:none}.van-step--horizontal:first-child .van-step__circle-container{padding:0 8px 0 0;-webkit-transform:translate3d(0,50%,0);transform:translate3d(0,50%,0)}.van-step--horizontal:last-child{position:absolute;right:10px;width:auto}.van-step--horizontal:last-child .van-step__title{-webkit-transform:none;transform:none;text-align:right}.van-step--horizontal:last-child .van-step__circle-container{right:0;padding:0 0 0 8px;-webkit-transform:translate3d(0,50%,0);transform:translate3d(0,50%,0)}.van-step--horizontal .van-step__circle-container{position:absolute;bottom:6px;z-index:1;padding:0 8px;background-color:#fff;-webkit-transform:translate3d(-50%,50%,0);transform:translate3d(-50%,50%,0)}.van-step--horizontal .van-step__title{display:inline-block;font-size:12px;-webkit-transform:translate3d(-50%,0,0);transform:translate3d(-50%,0,0)}.van-step--horizontal .van-step__line{position:absolute;left:0;right:0;bottom:6px;height:1px;background-color:#eee;-webkit-transform:translate3d(0,50%,0);transform:translate3d(0,50%,0)}.van-step--horizontal.van-step--process{color:#333}.van-step--horizontal.van-step--process .van-step__active{display:block;font-size:12px;color:#06bf04;line-height:1}.van-step--vertical{font-size:14px;line-height:18px;padding:10px 10px 10px 0}.van-step--vertical:not(:last-child)::after{border-bottom-width:1px}.van-step--vertical:first-child::before{content:'';position:absolute;width:1px;height:20px;background-color:#fff;top:0;left:-15px;z-index:1}.van-step--vertical .van-step__active,.van-step--vertical .van-step__circle,.van-step--vertical .van-step__line{position:absolute;top:19px;left:-14px;z-index:2;-webkit-transform:translate3d(-50%,-50%,0);transform:translate3d(-50%,-50%,0)}.van-step--vertical .van-step__active{font-size:12px;line-height:1}.van-step--vertical .van-step__line{z-index:1;width:1px;height:100%;background-color:#eee;-webkit-transform:translate3d(-50%,0,0);transform:translate3d(-50%,0,0)}
\ No newline at end of file
diff --git a/dist/submit-bar/index.js b/dist/submit-bar/index.js
index 00857608..a5b70d95 100644
--- a/dist/submit-bar/index.js
+++ b/dist/submit-bar/index.js
@@ -2,6 +2,7 @@ import { VantComponent } from '../common/component';
 
 VantComponent({
   classes: [
+    'bar-class',
     'price-class',
     'button-class'
   ],
@@ -9,7 +10,7 @@ VantComponent({
   props: {
     tip: [String, Boolean],
     type: Number,
-    price: Number,
+    price: null,
     label: String,
     loading: Boolean,
     disabled: Boolean,
diff --git a/dist/submit-bar/index.wxml b/dist/submit-bar/index.wxml
index d40fd4f1..134f51fc 100644
--- a/dist/submit-bar/index.wxml
+++ b/dist/submit-bar/index.wxml
@@ -5,7 +5,7 @@
     {{ tipStr }}<slot name="tip" />
   </view>
 
-  <view class="van-submit-bar__bar">
+  <view class="van-submit-bar__bar bar-class">
     <slot />
     <view class="van-submit-bar__text">
       <block wx:if="{{ hasPrice }}">
diff --git a/dist/submit-bar/index.wxss b/dist/submit-bar/index.wxss
index fd6d9d09..454ef419 100644
--- a/dist/submit-bar/index.wxss
+++ b/dist/submit-bar/index.wxss
@@ -1 +1 @@
-.van-submit-bar{left:0;bottom:0;width:100%;z-index:100;position:fixed;-webkit-user-select:none;user-select:none}.van-submit-bar__tip{color:#f85;padding:10px;font-size:12px;line-height:18px;background-color:#fff7cc}.van-submit-bar__bar{height:50px;display:-webkit-box;display:-webkit-flex;display:flex;font-size:14px;-webkit-box-align:center;-webkit-align-items:center;align-items:center;background-color:#fff}.van-submit-bar__text{-webkit-box-flex:1;-webkit-flex:1;flex:1;font-weight:500;text-align:right;color:#333;padding-right:12px}.van-submit-bar__text span{display:inline-block}.van-submit-bar__price{color:#f44}.van-submit-bar__button button{width:110px}.van-submit-bar__button--disabled button{border:none!important}
\ No newline at end of file
+.van-submit-bar{z-index:100;position:fixed;bottom:0;left:0;width:100%;-webkit-user-select:none;user-select:none}.van-submit-bar__tip{padding:10px;background-color:#fff7cc;color:#f85;font-size:12px;line-height:18px}.van-submit-bar__bar{display:-webkit-box;display:-webkit-flex;display:flex;-webkit-box-align:center;-webkit-align-items:center;align-items:center;height:50px;background-color:#fff;font-size:14px}.van-submit-bar__text{-webkit-box-flex:1;-webkit-flex:1;flex:1;color:#333;font-weight:500;text-align:right}.van-submit-bar__price{padding-right:12px;color:#f44}.van-submit-bar__button button{width:110px}.van-submit-bar__button--disabled button{border:none!important}
\ No newline at end of file