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5.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="vue.js"></script>
</head>
<body>
<div id="demo">
{{message}}
<parent-component></parent-component>
<ul>
<li v-for="(item,index,key) in list">
{{item}}
</li>
</ul>
</div>
<script >
//创建一个子组件
var Child=Vue.component("child-component",{
//_isComponent:true,
template:"<div>我是子组件 {{message}}</div>",
props: ['message'],
});
//创建一个父组件
Vue.component("parent-component",{
_isComponent:true,
beforeCreate(){
},
created(){
},
beforeMount(){
},
beforeUpdate(){
},
updated(){ //挂载元素，获取到DOM节点
},
beforeDestroy(){
},
destroyed(){
},
mounted:function () {
setTimeout(()=>{
this.message.push(1);
},1000)
},
template:"<div>{{message}}<child-component :message='message'></child-component></div>", //注意元素模板只能有一个最上层元素，也就是用一个div包裹整个模板。
components:{"child-component":Child},//进行子组件关联，注意child-component需要引号。
data:function(){//组件中的data是一个函数
return {
message:[]
}
}
})
//创建一个vue的实例
new Vue({
el:"#demo",
data: {
list:[1,2,3,4,5,6,7,8],
message: 'Hello Vue!'
},
beforeCreate(){
},
created(){
},
beforeMount(){
},
mounted: ()=> { //挂载元素，获取到DOM节点
},
beforeUpdate(){
},
updated(){ //挂载元素，获取到DOM节点
},
beforeDestroy(){
},
destroyed(){
},
})
</script>
</body>
</html>