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VueJs组件通讯-兄弟组件使用$emit和$on通讯 视频参考：https://www.bilibili.com/video/av10323610/index_24.html?t=312#page=25
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| <!DOCTYPE html> | |
| <html lang="zh-CN"> | |
| <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>VueJs组件通讯-兄弟组件使用$emit和$on通讯</title> | |
| <link href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.min.css" rel="stylesheet"> | |
| </head> | |
| <body> | |
| <div id="app"> | |
| <listener></listener> | |
| <toggle-btn></toggle-btn> | |
| </div> | |
| <script src="https://cdn.bootcss.com/vue/2.4.4/vue.js"></script> | |
| <script> | |
| var bus = new Vue(); | |
| Vue.component('listener', { | |
| template: `<h5>Sibling Component</h5>`, | |
| mounted: function() { | |
| bus.$on('everything-you-want',function(arg1, arg2){ | |
| console.log(arg1); | |
| console.log(arg2); | |
| }); | |
| } | |
| }); | |
| Vue.component('toggle-btn', { | |
| template: ` | |
| <a href="#" | |
| class="btn btn-primary" | |
| v-on:click.prevent="emitToggle" | |
| v-text="title"></a> | |
| `, | |
| data: function() { | |
| return { | |
| title: 'Toggle Description', | |
| } | |
| }, | |
| methods: { | |
| emitToggle() { | |
| bus.$emit('everything-you-want','arg1','arg2'); | |
| } | |
| } | |
| }); | |
| var app = new Vue({ | |
| el: '#app' | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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$emit触发事件$on监听并执行事件