父元件: app.vue

子元件: header.vue

子元件:

<template>
	<div>
		<!--
			logo 是在data中(父元件)定義的變數
			如果需要從父元件中獲取logo的值,就需要使用props['logo'], 如30行
			在props中添加了元素以後,就不需要在data中(子元件)中再新增變量了
		-->
		<div id='logo'>{{logo}}(我是父元件傳遞過來的值)</div>
		<ul class="nav">
			<li v-for="nav in navs">{{nav.li}}</li>
		</ul>		
	</div>

</template>
<script>
	export default{
		name:'headerDiv',
		data(){
			return{
				navs:[
					{li:'主頁'},
					{li:'日誌'},
					{li:'說說'},
					{li:'主頁'},
					{li:'相簿'}
				]
			}
		},
		props:['logo']
	}
	
</script>
<style scoped>
	.nav li{list-style: none;} 
</style>
 

<template>
  <div id="app">
    <img src="./assets/logo.png">
    <!--
    	在呼叫元件的時候,使用v-bind將logo的值繫結為 APP.vue中定義的變數 logoMsg
    	然後就能將App.vue中的logoMsg的值傳給header.vue 了
    -->
    <headerDiv :logo="logoMsg"></headerDiv>
    <h1>{{msg}}</h1>
    <firstcomponent></firstcomponent>

    <router-view></router-view>
  </div>
</template>

<script>
import firstcomponent from './components/firstcomponent.vue'
import headerDiv from './components/header.vue'
export default {
  name: 'app',
  data(){
  	return{
  		msg:'hellow Vue',
  		logoMsg:'WiseWrong'
  	}
  },
  components:{firstcomponent,headerDiv},
}
</script>

<style>
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>