1.绑定类名
<view class="list-wrapper">
<view class="list-top">
<view data-num="1" class="list-menu list-menu1 {{_num==1?\'cur\':\'\'}}" bindtap="menuClick">头条</view>
<view data-num="2" class="list-menu list-menu2 {{_num==2?\'cur\':\'\'}}" bindtap="menuClick">活动</view>
<view data-num="3" class="list-menu list-menu3 {{_num==3?\'cur\':\'\'}}" bindtap="menuClick">公告</view>
</view>
</view>
2.绑定输入框
（1）输入框
<input type=\'text\' bindchange=\'changInput\' data-id="1" placeholder=\'邮政编码\'></input>
（2）下拉选择时间
<picker bindchange="changInput" mode="date" value="{{postData.mail_time}}" start="2019-06-01" end="2020-09-01">
<view class="picker">
{{postData.mail_time}}
</view>
</picker>
（3）下拉选择单项
<picker bindchange="changInput" data-id="6" value="{{indexPerson}}" range="{{arrayPerson}}">
<view class="picker">
{{arrayPerson[indexPerson]||\'请选择人数\'}}
</view>
</picker>
当输入框变化时,方法changInput就了根据传过来的id来判断处理值
<script>
changInput(e) {
let id = e.currentTarget.dataset.id
let value = e.detail.value
if (id === 1) {
this.setData({
value: value
})
}
}
</script>
3.数据遍历
<view wx:key="{{item}}" wx:for="{{pingData}}">
{{item.user.nickname}}
</view>
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