请教下，在微信小程序中wxml中有以下代码：
<block wx:for="{{answer_arr}}"> <view class="tr"> <block wx:for="{{keyword_arr}}"> <view wx:if="{{item.key_flag}}" style="color:#FF00FF">{{item.alphabet}}</view> <view wx:else>{{item.alphabet}}</view> </block> <!-- <view class='td'>{{item.answer_word}}</view> --> <view class='td'>{{item.cor_num}}</view> </view></block> |
只使用this.setData({answer_arr: this.data.answer_arr});为何keyword_arr没有更新？
请问如何才能让answer_arr和keyword_arr的UI都更新？
<block wx:for="{{answer_arr}}" wx:for-item="top">
<view class="tr">
<block wx:for="{{keyword_arr}}">
<view wx:if="{{item.key_flag}}" style="color:#FF00FF">{{item.alphabet}}</view>
<view wx:else>{{item.alphabet}}</view>
</block>
<!-- <view class='td'>{{top.answer_word}}</view> -->
<view class='td'>{{top.cor_num}}</view>
</view>
</block>
我猜不到，你写个代码片段可好：
https://developers.weixin.qq.com/miniprogram/dev/devtools/minicode.html
来个完整代码