lovecoding
/
VIP22


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    #div1{
      width: 200px;
      height: 200px;
      background: red;
    }
    #div2{
      width: 100px;
      height: 100px;
      background: blue;
    }
  </style>
</head>
<body>
  <div id="app">
    {{msg}}
    {{num}}
    <!-- <button v-on:click="fn">按钮</button> -->
    <!-- v-on:click   简写为 @click-->
    <button @click="fn">按钮</button>
    <div id="div1" @click="fn1()">
      <div id="div2" @click="fn2()"></div>
    </div>

    <input type="text" @keyup ="fn3()">

    <input type="text" @keyup.enter="fn4()">
  </div>
  <script src="vue.js"></script>
  <script>
    new Vue({
      el:'#app',
      data:{
        msg:'hello',
        num: 20
      },
      methods:{
        fn(){
          // console.log(111)
          /* 修改data中的值  this. */
          this.msg = 'hello word'
          this.num++
        },
        fn1(){
          console.log(111)
        },
        fn2(){
          console.log(222)
        },
        fn3(){
          console.log(event.keyCode)
        },
        fn4(){
          console.log('hahhahahah')
        }
      }
    })
  </script>
</body>
</html>