<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        *{
            padding: 0;
            margin: 0;
        }
        .btnBox{
            margin: 100px 200px;
        }
        .btn{
            padding: 10px;
            width: 80px;
            height: 40px;
            background: #f1f5bb;
            border-radius: 5px;
            margin-left: 10px;
            cursor: pointer;
            border: 1px solid #CCCCCC;
        }
        .isActive{
            background: #00A8E6;
        }
    </style>
</head>
<body>
    <div class="btnBox" >
        <span class="btn" v-for="(item,index) in msg" :class="{ isActive:isChange == index}" @click="isChoose(index,item)">{{item.name}}</span>
    </div>
</body>
<script src="https://cdn.bootcss.com/vue/2.5.22/vue.js"></script>
<script>
    var app=new Vue({
        el:'.btnBox',
        data:{
           msg:[{name:'项目1', id:1},
                {name:'项目2', id:2},
                {name:'项目3', id:3},
                ],
            isChange:-1,
        },
        methods:{
            isChoose(index,item){
                if(index!=this.isChange){
                    this.isChange = index;

                }else{
                    this.isChange = -1;

                }
            }
        },
    })



</script>

</html>
Logo
Vue

前往低代码交流专区

更多推荐

vue 表单验证

1、6位小写字母和数字必须包含两个字母rules: [{ required: true, message: "XXX不能为空", trigger: "blur" },{ max: 6, message: "最大长度为6位字符", trigger: "blur" },{pattern: /^(?=(?:[^a-z]*[a-z]){2})[a-z0-9]{6,6}$/, //不连续的两位字母// /^

avatar Vue
cover

echarts堆叠柱状图

avatar Vue

Error in v-on handler: "TypeError: Cannot read properties of undefined (reading 'current')"

这是一个 Vue.js 错误，报错信息提示在 v-on 处理程序中出现了错误：“TypeError: Cannot read properties of undefined(读取 'current')”。这意味示在您的代码中，试图读取一个未定义的变量 'current'。您需要检查您的代码，确保 'current' 已正确定义并初始化。...

avatar Vue