2，v-on绑定事件和修饰符 

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <style>
      .red1 {
        color: red;
      }
    </style>
  </head>

  <body>
    <div id="app">
      <p>v-on的修饰符</p>
      <button v-on:click="btn1()">点击按钮</button>
      
      <!-- 1，.stop修饰符：阻止事件冒泡  相当于调用 event.stopPropagation()-->
      <button @click.stop="btnClick()">点击按钮</button>

      <!-- 2， .prevent修饰符：阻止默认事件  阻止自动提交。 相当于 event.preventDefault() -->
      <form action="">
        <input type="submit" value="提交" @click.prevent="submitClick()" />
      </form>

      <!-- 3，监听某个键盘事件 -->
      <input type="text" @keyup.enter="keyUp()" />
    </div>
  </body>
  <script src="vue.js"></script>
  <script>
    new Vue({
      el: "#app",
      data: {
        firstName: "le01",
        lastName: "james",
      },
      computed: {},
      methods: {
        btnClick() {},
        submitClick() {
          console.log("111");
        },
        keyUp() {
          console.log("键盘事件，按下");
        },
      },
    });
  </script>
</html>

 

 
posted @ 2021-05-10 20:52  云悠  阅读(53)  评论(0)    收藏  举报