微信小程序页面渲染实现方法

<view wx:if="{{list.length > 5}}" >1</view>
<view wx:elif="{{list.length > 2}}">2</view>
<view wx:else>3</view>

<block>
<view wx:if="{{list.length > 5}}" >1</view>
<view wx:elif="{{list.length > 2}}">2</view>
<view wx:else>3</view>
</block>

<view hidden = "{{condition}}" >123</view>

<view wx:for="{{userList}}" wx:key="index">索引是 {{index}}, 值是 {{item}}</view>
 
 data: {
  userList :['zhangsan', "lisi", 'wnagwu']
 }

<view wx:for="{{userList}}" wx:key="index" wx:for-index="i" wx:for-item="it">
 索引是 {{i}}, 值是 {{it}}
</view>
 
data: {
  userList :['zhangsan', "lisi", 'wnagwu']
 }

<block wx:for="{{userList}}" wx:key="index" wx:for-index="i" wx:for-item="it">
 <view>索引是 {{i}}, 值是 {{it}}</view>
</block>