vue点击取消再点击选中（单选）感谢您的支持感谢您的支持感谢您的支持感谢您的支持感谢您的支持感谢您的支持感谢您的支持感谢

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>单选（点击选中，点击取消）</title>
    <script src="https://cdn.bootcss.com/vue/2.5.22/vue.js"></script>
    <style>
        *{
            padding: 0;
            margin: 0;
        }
        .btnBox{
            margin-top: 100px;
        }
        .btn{
            padding: 10px;
            width: 80px;
            height: 40px;
            background: #a8d7e6;
            border-radius: 5px;
            margin-left: 10px;
            cursor: pointer;
            border: 1px solid #ccc;
        }
        .isActive{
            background: pink;
        }
    </style>
</head>
<body>
    <div class="btnBox" >
        <span class="btn" v-for="(item,index) in list" :class="{ isActive:isChange == index}" @click="clickBtn(index)">{{item.name}}</span>
    </div>
</body>
<script>
    var app=new Vue({
        el:'.btnBox',
        data:{
           list:[
                {name:'title1', id:1},
                {name:'title2', id:2},
                {name:'title3', id:3},
            ],
            isChange:-1,
        },
        methods:{
            clickBtn(index){
                if(index!=this.isChange){
                    this.isChange = index;

                }else{
                    this.isChange = -1;

                }
            }
        },
    })
</script>
</html>

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