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day 100天 VUE 父子传值,单页面.

 

 一 、静态资源导入方法

 

启动服务  npm run serve

<template>
<div id ="app">
  
  <h3>{{msg}}</h3>
  <ul>
    <img src="./assets/logo.png">
    <audio :src="audioSrc" autoplay="" controls=""></audio>
    <li v-for ="(item,index) in menus">
      {{item}}      
    </li>
  </ul>

</div>

</template>


<script>
// import Vheader from './components/Vheader.vue'
// import Vcontent from './components/Vcontent.vue'

import audio1 from './assets/1.mp3'
    export default{
      name:"App",
      data(){
          return{
            msg:"hello 组件",
            menus:["宫保丁","鱼香肉丝","回锅肉"],
            audioSrc: audio1
          }
      }

      // components:{
      //     Vheader,
      //     Vcontent
      // }
    } 
     
</script>

<style >
</style>

  

 

 

 前端页面展示的情况:

 

 

 

 

二、父组件往子组件传值

App.vue文件 配置

<template>
<div id ="app">
  <Vheader></Vheader>
  <ul>
      <audio :src="audioSrc" autoplay="" controls=""></audio>

    <li v-for ="(item,index) in menus">
      {{item}}      
    </li>
  </ul>
    <h3> 你好 vue测试h3标签</h3>
</div>

</template>


<script>

import audio1 from './assets/1.mp3'
import Vheader from './components/Vheader.vue'
// import Vcontent from './components/Vcontent.vue'

    export default{
      name:"App",
      data(){
          return{
            menus:["宫保丁","鱼香肉丝","回锅肉"],
            audioSrc:audio1
          }
      },

      components:{
          Vheader,
          // Vcontent
      }
    } 

</script>

<style scoped>
h3{
  color:red ;
}
</style>

 

Vheader

<template>
	<div class="header">
		<img :src="logSrc">
		<h3>{{msg}}</h3>
	</div> 
</template>
<script >
import logSrc from "../assets/logo.png"
export default{
	name:'Vheader',
	data(){
		return{
            msg:"hello 组件",
            logSrc:logSrc,

		}
	}
}
</script>

<style scoped>
	
	h3{
		color:yellow;
	}
</style>

  

vue文件

vheader文件

 

 输出结果 :

 

 

三、父组件往子组件传值

vue文件

<template>
<div id ="app">
  <Vheader></Vheader>
  <Vcontent :menu ="menus"></Vcontent>    
   

  <ul>
      <audio :src="audioSrc" autoplay="" controls=""></audio>

    <li v-for ="(item,index) in menus">
      {{item}}      
    </li>
  </ul>
    <h3> 你好 vue测试h3标签</h3>
</div>

</template>


<script>

import audio1 from './assets/1.mp3'
import Vheader from './components/Vheader.vue'
import Vcontent from './components/Vcontent.vue'

    export default{
      name:"App",
      data(){
          return{
            audioSrc:audio1

        menus:['宫保鸡丁', '鱼香肉丝'],

          }
      },

      components:{
          Vheader,
          Vcontent
      }
    } 

</script>

<style >

</style>

  

vcontent文件

 

<template>
	<div class="content">
		<ul>
			<li v-for ="(item,index) in menu">
			{{item}}
			</li>
			<h3>你好 HELLO WORLD</h3>
		</ul>
	</div>


</template>


<script>
	export default	{
		name :"Vcontent",
		data(){

			return {

                menus:this.menu

			}
		},

		props:{
			// 父子传值 属性必须要验证.
			menu:Array 
		}
	}

</script>

  

父子传值步骤:

1.父里面

 

2.子里面配置

 

 3.子里面

 

输出结果:

 

 

四、子级往父级传值-自定义事件

 vue文件

<template>
<div id ="app">
  <Vheader @addmenu ="addHandler"></Vheader>             自定义绑定事件
  <Vcontent :menu ="menus"></Vcontent>    
   

  <ul>
      <audio :src="audioSrc" autoplay="" controls=""></audio>

    <li v-for ="(item,index) in menus">
      {{item}}      
    </li>
  </ul>
    <h3> 你好 vue测试h3标签</h3>
</div>

</template>


<script>

import audio1 from './assets/1.mp3'
import Vheader from './components/Vheader.vue'
import Vcontent from './components/Vcontent.vue'

    export default{
      name:"App",
      data(){
          return{
            audioSrc:audio1,
            menus:['宫保鸡丁', '鱼香肉丝'],
          }
      },
      methods:{
        addHandler(value){                            自定义绑定事件方法
          alert(value);
          this.menus.push(value)

        }
      },

      components:{
          Vheader,
          Vcontent
      },
    } 

</script>

<style >

</style>

  

<template>
	<div class="header">
		<img :src="logSrc">
		<h3>{{msg+"header里面的内容"}}</h3>
		<button @click ="addonemenu">添加</button>

	</div> 
</template>
<script >
import logSrc from "../assets/logo.png"
export default{
	name:'Vheader',
	data(){
		return{
            msg:"hello 组件",
            logSrc:logSrc,

		}
	},
	methods:{
	addonemenu(){
		this.$emit("addmenu","酸菜鱼");
		}
	},
}
</script>

<style scoped>
	
	h3{
		color:yellow;
	}
</style>

  

 

 

 

五、父子传值的方法

 

 

 

 六 、vue-router 创建单页面应用

    安装地址:https://router.vuejs.org/zh/guide/

 

 

下载vrouter

 

 

 

 

 

main.js文件

 

import Vue from 'vue'
import App from './App.vue'

import VueRouter from "vue-router"

import Vhome from "./components/Vhome.vue"
import Vuser from "./components/Vusers.vue"


// 如果使用模块化机制编程,导入Vue和VueRouter, 要调用Vue.use(VueRouter)
Vue.use(VueRouter)
Vue.config.productionTip =false

var router =new VueRouter({
	routers:[
	{path:'/',components:Vusers}
	]
})

new Vue({
  router, render: h => h(App) }).$mount('#app')

  

 

posted @ 2018-06-27 22:20  萌哥-爱学习  阅读(190)  评论(0编辑  收藏  举报