一、定义一个组件
定义一个组件:
1. 全局组件
var Aaa=Vue.extend({ template:'<h3>我是标题3</h3>' }); Vue.component('aaa',Aaa);
*组件里面放数据:
data必须是函数的形式,函数必须返回一个对象(json)
2. 局部组件
放到某个组件内部
var vm=new Vue({ el:'#box', data:{ bSign:true }, components:{ //局部组件 aaa:Aaa } });
1. 全局组件
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <script src="https://cdn.bootcss.com/vue/2.4.4/vue.min.js"></script> <style> </style> </head> <body> <div> <aaa></aaa> </div> <script> var Aaa=Vue.extend({ template:'<h3>我是标题3</h3>' }); Vue.component('aaa',Aaa); var vm=new Vue({ el:'#box', data:{ bSign:true } }); </script> </body> </html>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <script src="https://cdn.bootcss.com/vue/2.4.4/vue.min.js"></script> <style> </style> </head> <body> <div> <my-aaa></my-aaa> </div> <script> //另外一种写法,全局 Vue.component('my-aaa',{ template:'<strong>好</strong>' }); var vm=new Vue({ el:'#box' }); </script> </body> </html>
组件里面放数据:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <script src="https://cdn.bootcss.com/vue/2.4.4/vue.min.js"></script> </head> <body> <div> <aaa></aaa> </div> <script> var Aaa=Vue.extend({ //组件里面放数据:data必须是函数的形式,函数必须返回一个对象(json) data(){ return { msg:'我是标题^^' }; }, methods:{ change(){ this.msg='changed' } }, template:'<h3 @click="change">{{msg}}</h3>' }); Vue.component('aaa',Aaa);//放在这里是全局 var vm=new Vue({ el:'#box', data:{ bSign:true } }); </script> </body> </html>
2. 局部组件
放到某个组件内部
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <script src="https://cdn.bootcss.com/vue/2.4.4/vue.min.js"></script> <style> </style> </head> <body> <div> <aaa></aaa> <br/> <br/> <my-aaa></my-aaa> </div> <script> var Aaa=Vue.extend({ template:'<h3>{{msg}}</h3>', data(){ return { msg:'ddddd' } } }); var vm=new Vue({ el:'#box', data:{ bSign:true }, components:{ //局部组件 aaa:Aaa, 'my-aaa':Aaa//这里的my-aaa需要用引号 } }); </script> </body> </html>
另外一种写法,局部
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <script src="https://cdn.bootcss.com/vue/2.4.4/vue.min.js"></script> <style> </style> </head> <body> <div> <my-aaa></my-aaa> </div> <script> var vm=new Vue({ el:'#box', components:{ 'my-aaa':{ data(){ return { msg:'welcome vue' } }, methods:{ change(){ this.msg='changed'; } }, template:'<h2 @click="change">标题2->{{msg}}</h2>' } } }); </script> </body> </html>
二、配合模板
配合模板:
1. template:'<h2 @click="change">标题2->{{msg}}</h2>'
2. 单独放到某个地方
a).
<script type="x-template"> <h2 @click="change">标题2->{{msg}}</h2> </script>
b).
<template> <h1>标题1</h1> <ul> <li v-for="val in arr"> {{val}} </li> </ul> </template>
方法一:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <script src="https://cdn.bootcss.com/vue/2.4.4/vue.min.js"></script> <style> </style> </head> <body> <div> <my-aaa></my-aaa> </div> <script type="x-template"> <h2 @click="change">标题2->{{msg}}</h2> <ul> <li>1111</li> <li>222</li> <li>3333</li> <li>1111</li> </ul> </script> <script> var vm=new Vue({ el:'#box', components:{ 'my-aaa':{ data(){ return { msg:'welcome vue' } }, methods:{ change(){ this.msg='changed'; } }, template:'#aaa' } } }); </script> </body> </html>
方法二: