vue2.0 兄弟组件(平级)通讯的实现代码

import Vue from 'Vue'
export default new Vue;

<template>
 <div>
 <h2>A组件</h2>
 <button v-on:click="spot">点一下就传</button>
 </div>
</template>
<script>
 import bus from '../assets/ligature';
 export default {
 methods: {
 spot: function() {
 //监听A组件中的spot，并发送数据
 bus.$emit("spot", ' 没想到吧！！我是A组件')
 }
 }
 }
</script>

<template>
 <div>
 <h2>B组件</h2>
 <p>结果:{{msg}}</p>
 </div>
</template>
<script>
 import bus from "../assets/ligature";
 export default {
 data() {
 return {
 msg: "这TMD是默认值除非你点一下上面的按钮"
 };
 },
 mounted() {
 var _this = this;
 //监听A组件中的spot，并接受数据
 bus.$on("spot", function(msg) {
 _this.msg = msg;
 });
 }
 };
</script>
<style>
p{
 font-size: 20px;
 color: darkcyan;
}
</style>

<template>
 <div id="app">
 <A/>
 <hr>
 <B/>
 </div>
</template>
<script>
import A from './components/A'
import B from './components/B'
export default {
 name: 'App',
 components: {
 A,
 B
 }
}
</script>