详解vue事件对象、冒泡、阻止默认行为

时间:2020-05-15 阁下长的好生俊俏人气:0

整理文档，搜刮出一个vue事件对象、冒泡、阻止默认行为的代码，稍微整理精简一下做下分享。

事件对象

<!DOCTYPE html>
<html>
 <head>
  <meta charset="utf-8">
  <title></title>
  <script src="../js/Vue.js" charset="utf-8"></script>
  <script type="text/javascript">
   window.onload = function(){
    var vm = new Vue({
     el:'#box',
     data:{},
     methods:{
      show:function(ev){
       alert(ev.clientX);
       alert(ev.clientY);
      }
     }
    });
   }
  </script>
 </head>
 <body>
  <div id="box">
   <input type="button" name="" value="按钮" @click="show($event)">
  </div>
 </body>
</html>

事件冒泡

<!DOCTYPE html>
<html>
 <head>
  <meta charset="utf-8">
  <title></title>
  <script src="../js/Vue.js" charset="utf-8"></script>
  <script type="text/javascript">
   window.onload = function(){
    var vm = new Vue({
     el:'#box',
     data:{},
     methods:{
      show:function(){
       alert(111);
      //原生的写法
      //ev.cancelBubble = true;
      },
      show2:function(){
       alert(222);
      }
     }
    });
   }
  </script>
 </head>
 <body>
  <div id="box">
   <div @click="show2()">
    <input type="button" name="" value="按钮" @click.stop="show()">
   </div>
  </div>
 </body>
</html>

阻止事件默认行为

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title></title>
  <style>
    .show2{
      padding:15px;;
    }
  </style>
  <script src="../js/Vue.js" charset="utf-8"></script>
  <script type="text/javascript">
    window.onload = function () {
      var vm = new Vue({
        el: '#box',
        data: {},
        methods: {
          show: function () {
            alert(111)
          },
          show2: function () {
            alert(222)
          }
        }
      });
    }
  </script>
</head>
<body>
<div id="box">
  <div class="show2">
    <input type="button" name="" value="按钮" @contextmenu.prevent="show()">
  </div>
</div>
</body>
</html>

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