微信小程序-数据处理

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>

 

 
posted @ 2018-03-15 23:10  fm060  阅读(308)  评论(0编辑  收藏  举报