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Vue
/
directive.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>v-on指令</title>
</head>
<body>
    <div id="app">
        <input type="text" v-model="money">
        <button v-on:click ="money++">充值</button>

        <p>ta喜欢不喜欢你？</p>
        <span>{{isLove?'':'不'}}喜欢</span>
        <button v-on:click="isLove=!isLove">再掰一瓣</button>

        <p>最帅的爱豆：{{bfArr[bfArr.length-1]}}</p>
        <input type="text" v-model="bfName" v-on:change="addIdol"  :data-qwer="money">

    </div>
    <script src="./js/vue.js"></script>
    <script>
        let vm =new Vue({
            el:'#app',
            data:{
               money:999,
               isLove:true,
               bfArr:["朱一龙","肖战","易烊千玺"],
               bfName:''
            },
            methods: {
                // addIdol :function(){}
                addIdol(){
                    // js中获取需要加  this
                   this.bfArr.push(this.bfName);
                   this.bfName=''
             }
            }
        })
    </script>
</body>
</html>