风华正茂、时光流逝、真爱时光、努力创建辉煌。

【vue】---模拟 --- v-model

 

 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <div id="app">
            <label>
                    抽烟:<input type="checkbox" value="抽烟" @change="handleChange($event)">
                </label>
                <label>
                    喝酒:<input type="checkbox" value="喝酒" @change="handleChange($event)">
                </label>
                <label>
                    烫头:<input type="checkbox" value="烫头" @change="handleChange($event)">
                </label>
                <label>
                    大保健:<input type="checkbox" value="大保健" @change="handleChange($event)">
                </label>
                <ul>
                    您的爱好为:
                    <li v-for="item in checkVal">{{item}}</li>
                </ul>
    </div>
</body>
</html>
<script src="vue.js"></script>
<script>
let vm = new Vue({
    el:"#app",
    data:{
        checkVal:[]
    },
    methods:{
        handleChange(e){
            let val = e.target.value;
            let arr = this.checkVal;

            var flag = arr.includes(val);
            if(flag){
                var index = arr.indexOf(val);
                arr.splice(index,1);
            }else{
                arr.push(val);
            }

            this.checkVal = arr;

        }
    }
})
</script>

 

posted @ 2019-08-28 20:03  野马,程序源改造新Bug  阅读(79)  评论(0)    收藏  举报