湯小洋Vue課程代碼記錄
課程連接地址：http://edu.51cto.com/course/10543.html
抄錄至簡書僅方便自己查閱，小伙伴們可以去學(xué)院支持該課程
code01
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>定義組件的兩種方式</title>
<script src="js/vue.js"></script>
</head>
<body>
<div id="itany">
<hello></hello>
<my-world></my-world>
</div>
<script>
/**
* 方式1：先創(chuàng)建組件構(gòu)造器回铛，然后由組件構(gòu)造器創(chuàng)建組件
*/
//1.使用Vue.extend()創(chuàng)建一個(gè)組件構(gòu)造器
var MyComponent=Vue.extend({
template:'<h3>Hello World</h3>'
});
//2.使用Vue.component(標(biāo)簽名,組件構(gòu)造器)狗准，根據(jù)組件構(gòu)造器來創(chuàng)建組件
Vue.component('hello',MyComponent);
/**
* 方式2：直接創(chuàng)建組件(推薦)
*/
// Vue.component('world',{
Vue.component('my-world',{
template:'<h1>你好，世界</h1>'
});
var vm=new Vue({ //這里的vm也是一個(gè)組件腔长，稱為根組件Root
el:'#itany',
data:{
msg:'網(wǎng)博'
}
});
</script>
</body>
</html>
code02
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>組件的分類</title>
<script src="js/vue.js"></script>
</head>
<body>
<div id="itany">
<my-hello></my-hello>
<my-world></my-world>
</div>
<script>
/**
* 全局組件，可以在所有vue實(shí)例中使用
*/
Vue.component('my-hello',{
template:'<h3>{{name}}</h3>',
data:function(){ //在組件中存儲(chǔ)數(shù)據(jù)時(shí)验残，必須以函數(shù)形式镣丑，函數(shù)返回一個(gè)對(duì)象
return {
name:'alice'
}
}
});
/**
* 局部組件舔糖，只能在當(dāng)前vue實(shí)例中使用
*/
var vm=new Vue({
el:'#itany',
data:{
name:'tom'
},
components:{ //局部組件
'my-world':{
template:'<h3>{{age}}</h3>',
data(){
return {
age:25
}
}
}
}
});
</script>
</body>
</html>
code03
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>引用模板</title>
<script src="js/vue.js"></script>
</head>
<body>
<div id="itany">
<my-hello></my-hello>
<my-hello></my-hello>
</div>
<template id="wbs">
<!-- <template>必須有且只有一個(gè)根元素 -->
<div>
<h3>{{msg}}</h3>
<ul>
<li v-for="value in arr">{{value}}</li>
</ul>
</div>
</template>
<script>
var vm=new Vue({
el:'#itany',
components:{
'my-hello':{
name:'wbs17022', //指定組件的名稱，默認(rèn)為標(biāo)簽名莺匠，可以不設(shè)置
template:'#wbs',
data(){
return {
msg:'歡迎來到南京網(wǎng)博',
arr:['tom','jack','mike']
}
}
}
}
});
</script>
</body>
</html>
code04
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>動(dòng)態(tài)組件</title>
<script src="js/vue.js"></script>
</head>
<body>
<div id="itany">
<button @click="flag='my-hello'">顯示hello組件</button>
<button @click="flag='my-world'">顯示world組件</button>
<div>
<!-- 使用keep-alive組件緩存非活動(dòng)組件金吗，可以保留狀態(tài)，避免重新渲染趣竣，默認(rèn)每次都會(huì)銷毀非活動(dòng)組件并重新創(chuàng)建 -->
<keep-alive>
<component :is="flag"></component>
</keep-alive>
</div>
</div>
<script>
var vm=new Vue({
el:'#itany',
data:{
flag:'my-hello'
},
components:{
'my-hello':{
template:'<h3>我是hello組件：{{x}}</h3>',
data(){
return {
x:Math.random()
}
}
},
'my-world':{
template:'<h3>我是world組件：{{y}}</h3>',
data(){
return {
y:Math.random()
}
}
}
}
});
</script>
</body>
</html>
code05
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>父子組件及組件間數(shù)據(jù)傳遞</title>
<script src="js/vue.js"></script>
</head>
<body>
<div id="itany">
<my-hello></my-hello>
</div>
<template id="hello">
<div>
<h3>我是hello父組件</h3>
<h3>訪問自己的數(shù)據(jù)：{{msg}},{{name}},{{age}},{{user.username}}</h3>
<h3>訪問子組件的數(shù)據(jù)：{{sex}},{{height}}</h3>
<hr>
<my-world :message="msg" :name="name" :age="age" @e-world="getData"></my-world>
</div>
</template>
<template id="world">
<div>
<h4>我是world子組件</h4>
<h4>訪問父組件中的數(shù)據(jù)：{{message}},{{name}},{{age}},{{user.username}}</h4>
<h4>訪問自己的數(shù)據(jù)：{{sex}},{{height}}</h4>
<button @click="send">將子組件的數(shù)據(jù)向上傳遞給父組件</button>
</div>
</template>
<script>
var vm=new Vue({ //根組件
el:'#itany',
components:{
'my-hello':{ //父組件
methods:{
getData(sex,height){
this.sex=sex;
this.height=height;
}
},
data(){
return {
msg:'網(wǎng)博',
name:'tom',
age:23,
user:{id:9527,username:'唐伯虎'},
sex:'',
height:''
}
},
template:'#hello',
components:{
'my-world':{ //子組件
data(){
return {
sex:'male',
height:180.5
}
},
template:'#world',
// props:['message','name','age','user'] //簡單的字符串?dāng)?shù)組
props:{ //也可以是對(duì)象摇庙，允許配置高級(jí)設(shè)置，如類型判斷期贫、數(shù)據(jù)校驗(yàn)跟匆、設(shè)置默認(rèn)值
message:String,
name:{
type:String,
required:true
},
age:{
type:Number,
default:18,
validator:function(value){
return value>=0;
}
},
user:{
type:Object,
default:function(){ //對(duì)象或數(shù)組的默認(rèn)值必須使用函數(shù)的形式來返回
return {id:3306,username:'秋香'};
}
}
},
methods:{
send(){
// console.log(this); //此處的this表示當(dāng)前子組件實(shí)例
this.$emit('e-world',this.sex,this.height); //使用$emit()觸發(fā)一個(gè)事件，發(fā)送數(shù)據(jù)
}
}
}
}
}
}
});
</script>
</body>
</html>
code06
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>單向數(shù)據(jù)流</title>
<script src="js/vue.js"></script>
</head>
<body>
<div id="itany">
<h2>父組件：{{name}}</h2>
<input type="text" v-model="name">
<h2>父組件：{{user.age}}</h2>
<hr>
<my-hello :name.sync="name" :user="user"></my-hello>
</div>
<template id="hello">
<div>
<h3>子組件：{{name}}</h3>
<h3>子組件：{{user.age}}</h3>
<button @click="change">修改數(shù)據(jù)</button>
</div>
</template>
<script>
var vm=new Vue({ //父組件
el:'#itany',
data:{
name:'tom',
user:{
name:'zhangsan',
age:24
}
},
components:{
'my-hello':{ //子組件
template:'#hello',
props:['name','user'],
data(){
return {
username:this.name //方式1：將數(shù)據(jù)存入另一個(gè)變量中再操作
}
},
methods:{
change(){
// this.username='alice';
// this.name='alice';
// this.$emit('update:name','alice'); //方式2：a.使用.sync通砍，需要顯式地觸發(fā)一個(gè)更新事件
this.user.age=18;
}
}
}
}
});
</script>
</body>
</html>
code07
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>非父子組件間的通信</title>
<script src="js/vue.js"></script>
</head>
<body>
<div id="itany">
<my-a></my-a>
<my-b></my-b>
<my-c></my-c>
</div>
<template id="a">
<div>
<h3>A組件：{{name}}</h3>
<button @click="send">將數(shù)據(jù)發(fā)送給C組件</button>
</div>
</template>
<template id="b">
<div>
<h3>B組件：{{age}}</h3>
<button @click="send">將數(shù)組發(fā)送給C組件</button>
</div>
</template>
<template id="c">
<div>
<h3>C組件：{{name}}玛臂，{{age}}</h3>
</div>
</template>
<script>
//定義一個(gè)空的Vue實(shí)例
var Event=new Vue();
var A={
template:'#a',
data(){
return {
name:'tom'
}
},
methods:{
send(){
Event.$emit('data-a',this.name);
}
}
}
var B={
template:'#b',
data(){
return {
age:20
}
},
methods:{
send(){
Event.$emit('data-b',this.age);
}
}
}
var C={
template:'#c',
data(){
return {
name:'',
age:''
}
},
mounted(){ //在模板編譯完成后執(zhí)行
Event.$on('data-a',name => {
this.name=name;
// console.log(this);
});
Event.$on('data-b',age => {
this.age=age;
});
}
}
var vm=new Vue({
el:'#itany',
components:{
'my-a':A,
'my-b':B,
'my-c':C
}
});
</script>
</body>
</html>
code08
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>slot內(nèi)容分發(fā)</title>
<script src="js/vue.js"></script>
</head>
<body>
<div id="itany">
<!-- <my-hello>wbs17022</my-hello> -->
<my-hello>
<ul slot="s1">
<li>aaa</li>
<li>bbb</li>
<li>ccc</li>
</ul>
<ol slot="s2">
<li>111</li>
<li>222</li>
<li>333</li>
</ol>
</my-hello>
</div>
<template id="hello">
<div>
<slot name="s2"></slot>
<h3>welcome to itany</h3>
<!-- <slot>如果沒有原內(nèi)容烤蜕，則顯示該內(nèi)容</slot> -->
<slot name="s1"></slot>
</div>
</template>
<script>
var vm=new Vue({
el:'#itany',
components:{
'my-hello':{
template:'#hello'
}
}
});
</script>
</body>
</html>
code09
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>路由基本用法</title>
<style>
/* .router-link-active{
font-size:20px;
color:#ff7300;
text-decoration:none;
} */
.active{
font-size:20px;
color:#ff7300;
text-decoration:none;
}
</style>
<script src="js/vue.js"></script>
<script src="js/vue-router.js"></script>
</head>
<body>
<div id="itany">
<div>
<!-- 使用router-link組件來定義導(dǎo)航，to屬性指定鏈接url -->
<router-link to="/home">主頁</router-link>
<router-link to="/news">新聞</router-link>
</div>
<div>
<!-- router-view用來顯示路由內(nèi)容 -->
<router-view></router-view>
</div>
</div>
<script>
//1.定義組件
var Home={
template:'<h3>我是主頁</h3>'
}
var News={
template:'<h3>我是新聞</h3>'
}
//2.配置路由
const routes=[
{path:'/home',component:Home},
{path:'/news',component:News},
{path:'*',redirect:'/home'} //重定向
]
//3.創(chuàng)建路由實(shí)例
const router=new VueRouter({
routes, //簡寫迹冤，相當(dāng)于routes:routes
// mode:'history', //更改模式
linkActiveClass:'active' //更新活動(dòng)鏈接的class類名
});
//4.創(chuàng)建根實(shí)例并將路由掛載到Vue實(shí)例上
new Vue({
el:'#itany',
router //注入路由
});
</script>
</body>
</html>
code10
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>路由嵌套和參數(shù)傳遞</title>
<link rel="stylesheet" href="css/animate.css">
<style>
.active{
font-size:20px;
color:#ff7300;
text-decoration:none;
}
</style>
<script src="js/vue.js"></script>
<script src="js/vue-router.js"></script>
</head>
<body>
<div id="itany">
<div>
<router-link to="/home">主頁</router-link>
<router-link to="/user">用戶</router-link>
</div>
<div>
<transition enter-active-class="animated bounceInLeft" leave-active-class="animated bounceOutRight">
<router-view></router-view>
</transition>
</div>
<hr>
<button @click="push">添加路由</button>
<button @click="replace">替換路由</button>
</div>
<template id="user">
<div>
<h3>用戶信息</h3>
<ul>
<router-link to="/user/login?name=tom&pwd=123" tag="li">用戶登陸</router-link>
<router-link to="/user/regist/alice/456" tag="li">用戶注冊(cè)</router-link>
</ul>
<router-view></router-view>
</div>
</template>
<script>
var Home={
template:'<h3>我是主頁</h3>'
}
var User={
template:'#user'
}
var Login={
template:'<h4>用戶登陸讽营。。泡徙。獲取參數(shù)：{{$route.query}},{{$route.path}}</h4>'
}
var Regist={
template:'<h4>用戶注冊(cè)橱鹏。。堪藐。獲取參數(shù)：{{$route.params}},{{$route.path}}</h4>'
}
const routes=[
{
path:'/home',
component:Home
},
{
path:'/user',
component:User,
children:[
{
path:'login',
component:Login
},
{
path:'regist/:username/:password',
component:Regist
}
]
},
{
path:'*',
redirect:'/home'
}
]
const router=new VueRouter({
routes, //簡寫莉兰，相當(dāng)于routes:routes
linkActiveClass:'active' //更新活動(dòng)鏈接的class類名
});
new Vue({
el:'#itany',
router, //注入路由
methods:{
push(){
router.push({path:'home'}); //添加路由，切換路由
},
replace(){
router.replace({path:'user'}); //替換路由礁竞，沒有歷史記錄
}
}
});
</script>
</body>
</html>
code11
code12
code13
