1、搭配view
<view wx:if="{{boolean==true}}"> <view class="bg_black"></view> </view> <view wx:elif="{{boolean==false}}"> <view class="bg_red"></view> </view> <view wx:elif> <view class="bg_red"></view> </view>
2、搭配block
<block wx:if="{{boolean==true}}"> <view class="bg_black"></view> </block> <block wx:elif="{{boolean==false}}"> <view class="bg_red"></view> </block> <block wx:else> <view class="bg_red"></view> </block>