<!-- 默认情况下不写wx:for-item="item"
wx:for-index="indx" -->
<view>
<view wx:for="{{list}}"
wx:key="id">
索:{{index}}
值:{{item.name}}</view>
</view>

<!-- wx:for="{{对象}}"wx:for-item="对象的值"wx:for=index="对象的属性" -->
<view>
<view>对象循环</view>
<view
wx:for="{{person}}"
wx:for-item="value"
wx:for-index="key"
>
属性：{{key}}
值：{{value}}
</view>
</view>

 block标签：

 <view
      wx:for="{{person}}"     
      wx:for-index="key"    
      wx:for-item="value"     
      wx:key="age">  
      属性：{{key}}  
      值：{{item}}  
</view>

<block
    wx:for="{{person}}"     
    wx:for-index="key"    
    wx:for-item="value"     
    wx:key="age">  
    属性：{{key}}  
    值：{{item}}  
</block>