小程序一些记录

<view style='height:{{scrollview}}px;'></view>

<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>