最近在做后台的一个项目，需要实现列表单选或者多选！

实现的效果是这样子的！

 废话不多说，直接码代码

template结构

<template>
    <div class="imgList">
        <div class="img-item" v-for="(item, index) in allimgData" :class="{active:item.bOn}" :key="index" @click="checkImg(index)">
            <img :src="item.imgsrc" alt="">
        </div>
    </div>
</template>

script结构

<script>
export default {
    name:"FileManagement",
    data(){
        return{
            arr:[],
            allimgData:[
                {
                    id:'001',
                    imgsrc:"http://browser9.qhimg.com/bdm/480_296_0/t01bbd94b90e850d1d3.jpg"
                },
                   {
                    id:'002',
                    imgsrc:"http://browser9.qhimg.com/bdm/480_296_0/t01bbd94b90e850d1d3.jpg"
                },
                   {
                    id:'003',
                    imgsrc:"http://browser9.qhimg.com/bdm/480_296_0/t01bbd94b90e850d1d3.jpg"
                },
                   {
                    id:'004',
                    imgsrc:"http://browser9.qhimg.com/bdm/480_296_0/t01bbd94b90e850d1d3.jpg"
                }
            ]
        }
    },
    mounted () {
        this.allimgData.map(function (value) {
            value.bOn = false
        })
    },
    methods:{
        checkImg(index){
            const temp = this.allimgData[index]
            temp.bOn = !this.allimgData[index].bOn
            this.$set(this.allimgData, index, temp)
        }
    }
}
</script>

style样式结构

​

<style lang="less" scoped>
            .imgList{
                width: 98%;
                margin: 20px 0;
                background-color: #FFF;
                display: flex;
                flex-wrap: wrap;
                .active{
                    display: block;
                    width: 196px;
                    height: 196px;
                    line-height: 0;
                    font-size: 0;
                    vertical-align: middle;
                    border: 3px solid #2b89fd;
                    -webkit-transform: rotate(0deg);

                }
                .active::before{
                    content: "";
                    position: absolute;
                    right: 0;
                    bottom: 0;
                    border: 12px solid #2b89fd;
                    border-top-color: transparent;
                    border-left-color: transparent;
                }
                .active::after{
                    content: "";
                    display: block;
                    width: 5px;
                    height: 10px;
                    position: absolute;
                    right: 4px;
                    bottom: 5px;
                    border: 1px solid #fff;
                    border-top-color: transparent;
                    border-left-color: transparent;
                    transform: rotate(45deg);
                    cursor: pointer;
                }
                .img-item{
                    width: 196px;
                    height: 196px;
                    overflow: hidden;
                    background-color: #FFFFFF;
                    margin: 20px;
                    cursor: pointer;
                    img{
                        height: 196px;
                    }
                   
                }
            }
</style>

​

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