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                [TOC] > wx:for 數組中各項的數據重復渲染該組件 默認數組的當前項的下標變量名默認為index,數組當前項的變量名默認為item ``` <view wx:for="{{array}}"> {{index}}{{item.name}} </view> ``` ``` Page({ data: { array: [{ name: 'chengchao', }, { name: 'jiangwei' }] } }) ``` ### 使用 **wx:for-item**可以自定義數組當前元素的變量名 ### 使用**wx:for-index**可以自定義數組當前下標的變量名 ``` <view wx:for="{{array}}" wx:for-item="myItem" wx:for-index="ind"> {{ind}}{{myItem.name}} </view> ``` ### **block wx:for**渲染一個包含多節點的結構塊 ``` <block wx:for="{{[1, 2, 3]}}"> <view> {{index}}: </view> <view> {{item}} </view> </block> ``` ``` //希望數據動態更新,給每一個節點,添加唯一的標識符加上wx:key <view wx:for="{{array}}" wx:for-item="item" wx:key="index"> {{index}}{{item.name}} </view> ```
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