组件通信 eventtBus

平级组件的通信一个全局发布订阅模式，它是挂载到全局的

<!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>组件通信 &bus</title>

    <script src="./node_modules/vue/dist/vue.js"></script>

</head>

<body>

    <div id="app">

       <children1></children1>

       <children2></children2>

    </div>

</body>

<script>

    //发布订阅模式

    //适合简单的数据流

     Vue.prototype.$bus = new Vue();

    Vue.component('children1',{

     template:`<div><span>children1</span></div>`,

     mounted() {

         this.$bus.$on('吃',(food)=>{

             console.log(food)

         })

     },

   })

   Vue.component('children2',{

     template:`<div><span>children2</span></div>`,

     mounted() {

         this.$bus.$emit('吃','月饼')

     },

   })

   let  vm = new Vue({

         el:'#app',

   })

   //hello

</script>

</html>

巴特西

组件通信 eventtBus

最新文章

热门文章