微信小程序实现多选删除列表数据功能示例

本文实例讲述了微信小程序实现多选删除列表数据功能。分享给大家供大家参考，具体如下：

实现小程序一个类似多选列表删除的功能

<!-- 错题本 --><view class="contarner">  <view class="content">    <view class="title flex-def flex-cCenter flex-zBetween">      <view>错题本(<text>{{list.length}}</text>)题</view>      <view class="editBtn" bindtap="showSelIcon">{{iconStatu?'取消':'编辑'}}</view>    </view>    <view class="{{iconStatu?'margin-b':''}}">      <view bindtap="toggleSel" class="item flex-def flex-cCenter flex-zBetween" wx:for="{{list}}" wx:key="{{index}}" data-id='{{item.id}}'>        <view class="flex-def flex-cCenter flex-zBetween" data-id='{{item.id}}'>          <icon wx:if="{{iconStatu}}" type="success" size="20" color="{{item.selStatu?'#0f0':'#999'}}" data-id='{{item.id}}' />          <view data-id='{{item.id}}'>            <text data-id='{{item.id}}'>{{item.letter}}-</text>            <text data-id='{{item.id}}'>正确：{{item.nickname}}</text>          </view>        </view>        <view data-id='{{item.id}}'>          <text class="wrongCount" data-id='{{item.id}}'>23</text>          <text class="wrongText" data-id='{{item.id}}'>错误次数</text>        </view>      </view>    </view>  </view>  <view class="footer" wx:if="{{iconStatu}}" bindtap="delItem">    已掌握,移除错题本({{selList.length}})  </view></view>

js

// pages/wrongPage/index.jsPage({ /**  * 页面的初始数据  */ data: {   list: [     { "id": 0, "letter": "Michael", "statu": true, "nickname": "适北", "nickname2": "路高用" },      { "id": 1, "letter": "Michael", "statu": false, "nickname": "统常方你", "nickname2": "况土达主" },       { "id": 2, "letter": "Michael", "statu": true, "nickname": "国照而本", "nickname2": "温量" },       { "id": 3, "letter": "Michael", "statu": true, "nickname": "省全广", "nickname2": "正关水" },       { "id": 4, "letter": "Michael", "statu": false, "nickname": "十性位化", "nickname2": "选低离" },       { "id": 5, "letter": "Michael", "statu": true, "nickname": "织起", "nickname2": "叫意" },       { "id": 6, "letter": "Michael", "statu": true, "nickname": "已太边", "nickname2": "与今压" },       { "id": 7, "letter": "Michael", "statu": true, "nickname": "石情声", "nickname2": "马法该无" },       { "id": 8, "letter": "Michael", "statu": true, "nickname": "青例气", "nickname2": "先素有" },       { "id": 9, "letter": "Michael", "statu": true, "nickname": "或少", "nickname2": "无格历何" },       { "id": 10, "letter": "Michael", "statu": true, "nickname": "命构近九", "nickname2": "几被非外" },       { "id": 11, "letter": "Michael", "statu": true, "nickname": "拉物采", "nickname2": "价分斗" },       { "id": 12, "letter": "Michael", "statu": true, "nickname": "教斗适立", "nickname2": "算非音" },       { "id": 13, "letter": "Michael", "statu": true, "nickname": "历治", "nickname2": "相五" },       { "id": 14, "letter": "Michael", "statu": true, "nickname": "是治际", "nickname2": "你表手" },       ] ,   selColor: '#999',   selList: [],   iconStatu: false, }, /**  * 生命周期函数--监听页面加载  */ onLoad: function (options) {   let dataList = this.data.list;   dataList.map(function (value) {     value.selStatu = false;   }) }, // 选中 toggleSel(e) {   if (this.data.iconStatu) {     let selArr = this.data.selList;     let selId = e.target.dataset.id || e.currentTarget.dataset.id;     let dataList = this.data.list;     let index = this.data.selList.indexOf(selId);     if (index < 0) {       selArr.push(e.target.dataset.id);       dataList.map((value) => {         if (value.id == selId) {           value.selStatu = true          }       })     } else {       dataList.map((value) => {         if (value.id == selId) {           value.selStatu = false         }       })       selArr.splice(index, 1)     }     this.setData({       selList: selArr,       list: dataList     })   } },  showSelIcon() {    this.setData({      iconStatu: !this.data.iconStatu    })  },  // 删除错题  delItem() {    let arr = this.data.list;    let selArr = this.data.selList;    for (let i = 0; i < selArr.length; i++) {      arr = arr.filter((value,index) => {        return value.id != selArr[i]      })    }    for (let i = 0; i < arr.length; i++) {      arr[i].selStatu = false    }    this.setData({      list: arr,      selList: [],    })  }})