微信小程序—wx:if elif else的用法(搭配view、block)

<view wx:if="{{boolean==true}}">
    <view class="bg_black"></view>
</view>
<view wx:elif="{{boolean==false}}">
    <view class="bg_red"></view>
</view>
<view wx:else>
    <view class="bg_red"></view>
</view>

<block wx:if="{{city!='' && boolean==true}}">
    <text class="bg_red">{{city}}</text>
    <button class="submit_button" bindtap="submit_answer" data-idx="">下一步</button>
</block>
<block wx:elif="{{address!='' || boolean==false}}">
    <view class="bg_red"></view>
    <textarea bindinput="textareaInput" maxlength="-1" style="height: 4em" name="address" value="{{address}}"/>
</block>
<block wx:else>
    <view class="bg_red"></view>
    <button class="submit_button" bindtap="submit_answer" disabled='disabled'>下一步</button>
</block>

https://www.cnblogs.com/panlaixing/p/6552637.html