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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：
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实现小程序一个类似多选列表删除的功能
错题本( {{list.length}} )题{{iconStatu?'取消':'编辑'}} {{item.letter}}- 正确：{{item.nickname}} 23 错误次数 已掌握,移除错题本({{selList.length}})
js
// pages/wrongPage/index.js
Page({
/**
* 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: [],
})
}
})
css
@import "../../css/common.wxss";
.content {
padding: 20rpx 30rpx;
}
.title {
font-size: 40rpx;
color: #fff;
padding-bottom: 37rpx;
}
.title .editBtn {
font-size: 30rpx;
}
.item {
box-sizing: border-box;
width: 100%;
background-color: #464688;
border-radius: 10rpx;
padding: 40rpx 30rpx;
margin-top: 20rpx;
}
.item icon {
margin-right: 20rpx
}
.item text {
display: block;
font-size: 28rpx;
color: #fff;
}
.item .wrongCount {
font-size: 36rpx;
font-family: "PingFang SC";
color: rgb(255, 216, 80);
text-align: center;
}
.item .wrongText {
font-size: 22rpx;
font-family: "PingFang SC";
color: rgb(100, 98, 173);
text-align: center;
}
.footer {
position: fixed;
bottom: 0;
background-color: #fff;
width: 100%;
height: 100rpx;
line-height: 100rpx;
text-align: center;
}
.margin-b {
margin-bottom: 100rpx;
}
page {
height: 100%;
display: block;
background-attachment: fixed;
background:#000;
/* min-height: 100%; */
}
/* 头像 */
.head {
width: 136rpx;
height: 136rpx;
border-radius: 50%;
border: 2rpx solid #ffbf50;
}
.hide {
display: none!important;
}
/* 清除浮动 */
.clearfix:after{
content: ' ';
display: block;
clear: both;
visibility:hidden;
line-height: 0;
height:0;
}
/* flex类名 */
/* 定义 */
.flex-def { display: -webkit-box; display: -moz-box; display: -ms-flexbox; display: -webkit-flex; display: flex;}
/* 主轴居中 */
.flex-zCenter { -webkit-box-pack: center; -moz-justify-content: center; -webkit-justify-content: center; justify-content: center; }
/* 主轴两端对齐 */
.flex-zBetween { -webkit-box-pack: justify; -moz-justify-content: space-between; -webkit-justify-content: space-between; justify-content: space-between; }
/* 主轴end对齐 */
.flex-zEnd { -webkit-box-pack: end; -moz-justify-content: flex-end; -webkit-justify-content: flex-end; justify-content: flex-end; }
/* 主轴start对齐 */
.flex-zStart { -webkit-box-pack: start; -moz-justify-content: start; -webkit-justify-content: start; justify-content: start; }
.flex-zSpace { justify-content: space-around }
/* 侧轴居中 */
.flex-cCenter { -webkit-box-align: center; -moz-align-items: center; -webkit-align-items: center; align-items: center; }
/* 侧轴start对齐 */
.flex-cStart { -webkit-box-align: start; -moz-align-items: start; -webkit-align-items: start; align-items: start; }
/* 侧轴底部对齐 */
.flex-cEnd { -webkit-box-align: end; -moz-align-items: flex-end; -webkit-align-items: flex-end; align-items: flex-end; }
/* 侧轴文本基线对齐 */
.flex-cBaseline { -webkit-box-align: baseline; -moz-align-items: baseline; -webkit-align-items: baseline; align-items: baseline; }
/* 侧轴上下对齐并铺满 */
.flex-cStretch { -webkit-box-align: stretch; -moz-align-items: stretch; -webkit-align-items: stretch; align-items: stretch; }
/* 主轴从上到下 */
.flex-zTopBottom { -webkit-box-direction: normal; -webkit-box-orient: vertical; -moz-flex-direction: column; -webkit-flex-direction: column; flex-direction: column; }
/* 主轴从下到上 */
.flex-zBottomTop { -webkit-box-pack: end; -webkit-box-direction: reverse; -webkit-box-orient: vertical; -moz-flex-direction: column-reverse; -webkit-flex-direction: column-reverse; flex-direction: column-reverse; }
/* 主轴从左到右 */
.flex-zLeftRight { -webkit-box-direction: normal; -webkit-box-orient: horizontal; -moz-flex-direction: row; -webkit-flex-direction: row; flex-direction: row; }
/* 主轴从右到左 */
.flex-zRightLeft { -webkit-box-pack: end; -webkit-box-direction: reverse; -webkit-box-orient: horizontal; -moz-flex-direction: row-reverse; -webkit-flex-direction: row-reverse; flex-direction: row-reverse; }
/* 是否允许子元素伸缩 */
.flex-item { -webkit-box-flex: 1.0; -moz-flex-grow: 1; -webkit-flex-grow: 1; flex-grow: 1; }
.flex-wrap { flex-wrap: wrap; }
/* 加号 */
希望本文所述对大家微信小程序开发有所帮助。
