<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
*{
margin: 0;
padding: 0;
list-style: none;
}
table{
text-align: center;
margin:0 auto;
}
div{
text-align: center;
}
</style>
</head>
<body>
<div id="app">
<table cellpadding="0" cellspacing="0">
<tr><td colspan="3">父元件資料</td></tr>
<tr><td>name</td><td>{{name}}{{ff()}}</td><td><input type="text" v-model="name"></td></tr>
<tr><td>age</td><td>{{age}}{{ff()}}</td><td><input type="text" v-model="age"></td></tr>
</table>
<v-son :son-name="name" :son-age="age" @sza="gg"></v-son>
</div>
<template id="son">
<div>
<button @click="sonChange">子元件按鈕</button>
<table cellpadding="0" cellspacing="0">
<tr><td colspan="3">子元件資料</td></tr>
<tr><td>name</td><td>{{sonName}}</td><td><input type="text" v-model="sonName"></td></tr>
<tr><td>age</td><td>{{sonAge}}</td><td><input type="text" v-model="sonAge"></td></tr>
</table>
<g-son :g-name="sonName" :g-age="sonAge"></g-son>
</div>
</template>
<template id="vgson">
<div>
<button @click="gchan">孫子元件按鈕</button>
<table cellpadding="0" cellspacing="0">
<tr><td colspan="3">孫子元件資料</td></tr>
<tr><td>name</td><td>{{gName}}</td><td><input type="text" v-model="gName"></td></tr>
<tr><td>age</td><td>{{gAge}}</td><td><input type="text" v-model="gAge"></td></tr>
</table>
</div>
</template>
</body>
<script src="vue.js"></script>
<script>
var bus=new Vue();
const app=new Vue({
el:"#app",
data:{
name:"keep",
age:"28"
},
methods:{
gg(val1,val2){
this.name=val1
this.age=val2
},
ff(){
bus.$on("suibian", (val1,val2)=> {
this.name=val1;
this.age=val2
})
}
},
components:{
"vSon":{
template:"#son",
methods:{
sonChange(){
this.$emit("sza",this.sonName,this.sonAge)
}
},
props:["sonName","sonAge"],
components:{
"gSon":{
template:"#vgson",
props:["gName","gAge"],
methods:{
gchan(){
bus.$emit("suibian",this.gName,this.gAge);
},
}
}
},
}
}
})
</script>
</html>
