1.Vue-cli
1.新建一个vue项目
打开cmd
官方命令行工具
npm install -g vue-cli //安装脚手架
cd到你想要存放demo的目录下，然后
vue init webpack vue-demo //新建demo
其中user EsLint....那一行选项要选n
还有选最后一条时，让你选npm、yarn、No,I can handle it myselft，要选第三个No,I can handle it myselft，不然有可能一整天都新建不完。
然后执行
cd vue-demo
cnpm install
npm run dev
浏览器访问http://localhost:8080 可以看到vue的默认界面
2.数据渲染
用vscode打开vue-demo项目
在main.js
// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'
import router from './router' Vue.config.productionTip = false /* eslint-disable no-new */
// new Vue({
// el: '#app',
// router,
// components: { App },
// template: '<App/>'
// }) new Vue({
el:'#app',
data:{
title:'hello vuejs',
subTitle:'Vue React Angular is good',
showSub:false,
todos:['吃饭','睡觉','写代码']
}
})
在index.html中
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>vue-demo</title>
</head>
<body>
<div id="app">
<p>{{title}}</p>
<p v-if='showSub'>{{subTitle}}</p>
<ul>
<li v-for='todo in todos'>{{todo}}</li>
</ul>
</div> <!-- built files will be auto injected -->
</body>
</html>
浏览器中效果
3.简单事件处理
main.js中
// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'
import router from './router' Vue.config.productionTip = false /* eslint-disable no-new */
// new Vue({
// el: '#app',
// router,
// components: { App },
// template: '<App/>'
// }) new Vue({
el:'#app',
data:{
title:'hello vuejs',
subTitle:'Vue React Angular is good',
showSub:false,
todos:['吃饭','睡觉','写代码'],
mytodo:''
},
methods:{
handleClick(){
//this.title='你好 小程序'
this.todos.push(this.mytodo)
this.mytodo=''
}
}
})
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>vue-demo</title>
</head>
<body>
<div id="app">
<p>{{title}}</p>
<p v-if='showSub'>{{subTitle}}</p>
<div>
<input type="text" v-model="mytodo">
<button @click="handleClick">添加</button>
</div>
<ul>
<li v-for='todo in todos'>{{todo}}</li>
</ul>
</div> <!-- built files will be auto injected -->
</body>
</html>
效果图
4.循环事件处理，计算属性computed（购物车功能用得上）
main.js中
// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'
import router from './router' Vue.config.productionTip = false /* eslint-disable no-new */
// new Vue({
// el: '#app',
// router,
// components: { App },
// template: '<App/>'
// }) new Vue({
el:'#app',
data:{
title:'hello vuejs',
subTitle:'Vue React Angular is good',
showSub:false,
todos:[
{text:'吃饭',done:false},
{text:'睡觉',done:false},
{text:'写代码',done:false}
],
mytodo:''
},
computed:{
remain(){
return this.todos.filter(v=>!v.done).length
}
},
methods:{
handleClick(){ this.todos.push({
text:this.mytodo,
done:false
})
this.mytodo=''
},
toggle(i){
this.todos[i].done=!this.todos[i].done
},
clean(){
this.todos=this.todos.filter(v=>!v.done)
}
}
})
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>vue-demo</title>
<style>
li.done{
text-decoration: line-through;
color:'red'
}
</style>
</head>
<body>
<div id="app">
<p>{{title}}</p>
<p v-if='showSub'>{{subTitle}}</p>
<div>
<input @keyup.enter="handleClick" type="text" v-model="mytodo">
<button @click="handleClick">添加</button>
<button @click="clean">清理</button>
</div>
<ul>
<li :class="{'done':todo.done}" @click="toggle(index)" v-for='(todo,index) in todos'>{{index+1}}:{{todo.text}}</li>
</ul>
<p>{{remain}}/{{todos.length}}</p> </div> <!-- built files will be auto injected -->
</body>
</html>
5.改造成单文件组件
1.在src目录下新建 Todolist.vue将上面的代码组件化
1.index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>vue-demo</title>
<style> </style>
</head>
<body>
<div id="app"> </div> <!-- built files will be auto injected -->
</body>
</html>
2.main.js中
// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'
import router from './router' import Todolist from './Todolist' Vue.config.productionTip = false /* eslint-disable no-new */
// new Vue({
// el: '#app',
// router,
// components: { App },
// template: '<App/>'
// }) new Vue({
el:'#app',
components:{
Todolist
},
template:'<Todolist/>' })
3.Todolist.vue中
<template>
<div>
<p>{{title}}</p>
<p v-if='showSub'>{{subTitle}}</p>
<div>
<input @keyup.enter="handleClick" type="text" v-model="mytodo">
<button @click="handleClick">添加</button>
<button @click="clean">清理</button>
</div>
<ul>
<li :class="{'done':todo.done}" @click="toggle(key)" v-for='(todo,key) in todos'>{{key+1}}:{{todo.text}}</li>
</ul>
<p>{{remain}}/{{todos.length}}</p> </div>
</template>
<script>
export default {
data(){
return {
title:'hello vuejs',
subTitle:'Vue React Angular is good',
showSub:false,
mytodo:'',
todos:[
{text:'吃饭',done:false},
{text:'睡觉',done:false},
{text:'写代码',done:false}
]
}
},
computed:{
remain(){
return this.todos.filter(v=>!v.done).length
}
},
methods:{
handleClick(){ this.todos.push({
text:this.mytodo,
done:false
})
this.mytodo=''
},
toggle(i){
this.todos[i].done=!this.todos[i].done
},
clean(){
this.todos=this.todos.filter(v=>!v.done)
}
}
}
</script>
<style>
li.done{
text-decoration: line-through;
color:'red'
}
</style>
2.将todolist中的title再分出一个组件（组件间传值）
1.Todolist.vue中
<template>
<div>
<Title :title="title" :subtitle="subtitle"></Title>
<div>
<input @keyup.enter="handleClick" type="text" v-model="mytodo">
<button @click="handleClick">添加</button>
<button @click="clean">清理</button>
</div>
<ul>
<li :class="{'done':todo.done}" @click="toggle(key)" v-for='(todo,key) in todos'>{{key+1}}:{{todo.text}}</li>
</ul>
<p>{{remain}}/{{todos.length}}</p> </div>
</template>
<script>
import Title from './components/Title' export default {
components:{
Title
},
data(){
return {
title:'hello vuejs',
subtitle:'Vue React Angular is good',
showSub:false,
mytodo:'',
todos:[
{text:'吃饭',done:false},
{text:'睡觉',done:false},
{text:'写代码',done:false}
]
}
},
computed:{
remain(){
return this.todos.filter(v=>!v.done).length
}
},
methods:{
handleClick(){ this.todos.push({
text:this.mytodo,
done:false
})
this.mytodo=''
},
toggle(i){
this.todos[i].done=!this.todos[i].done
},
clean(){
this.todos=this.todos.filter(v=>!v.done)
}
}
}
</script>
<style>
li.done{
text-decoration: line-through;
color:'red'
}
</style>
2.在src/components目录下新建组件Title.vue
<template>
<div class="title">
<p>{{title}}</p>
<p>{{subtitle}}</p>
</div>
</template>
<script>
export default {
props:['title','subtitle']
}
</script> <style>
.title{
color: red;
}
</style>
2.mpvue入门
1.新建mpvue项目
1.新建mpvue项目，打开cmd，cd到想要放置项目的目录
vue init mpvue/mpvue-quickstart my-project Project name mpvue-demo
wxmp appid //登录微信小程序后台，找到appid
//然后全都默认即可
2.cd 到my-project
npm install
npm run dev
3.打开微信开发者工具，选择添加项目，项目目录选择my-project
2.生命周期
vue生命周期+兼容小程序生命周期
1.Create 创建初始化
2.Vue不支持的 用小程序自己的，比如 onPullDownRefresh（下拉刷新）
3.模板语法
computed+模板+熟悉的html
1.动态style和class使用计算属性返回字符串
2.v-if和v-for用法不变
3.表单v-model全支持
4.模板
除了动态渲染，别的都支持
1..vue单文件组件
2.小程序自带的组件也可以用
3.自带组件事件绑定也使用vue的，比如@click
5.todolist迁移
1.在src/components目录下，新建Todolist.vue组件
<template>
<div> <div>
<input @keyup.enter="handleClick" type="text" v-model="mytodo">
<button @click="handleClick">添加</button>
<button @click="clean">清理</button>
</div>
<ul>
<li :class="{'done':todo.done}" @click="toggle(key)" :key="key" v-for='(todo,key) in todos'>{{key+1}}:{{todo.text}}</li>
</ul>
<p>{{remain}}/{{todos.length}}</p> </div>
</template>
<script>
export default {
data(){
return {
title:'hello vuejs',
subtitle:'Vue React Angular is good',
showSub:false,
mytodo:'',
todos:[
{text:'吃饭',done:false},
{text:'睡觉',done:false},
{text:'写代码',done:false}
]
}
},
computed:{
remain(){
return this.todos.filter(v=>!v.done).length
}
},
methods:{
handleClick(){ this.todos.push({
text:this.mytodo,
done:false
})
this.mytodo=''
},
toggle(i){
this.todos[i].done=!this.todos[i].done
},
clean(){
this.todos=this.todos.filter(v=>!v.done)
}
}
}
</script>
<style>
li.done{
text-decoration: line-through;
color:'red'
}
</style>
2.在src/pages目录下，新建目录todolist，在todolist目录下新建index.vue和main.js
index.vue
<template>
<div>
<h1>vuejs is good</h1>
<Todolist></Todolist>
</div>
</template> <script>
import Todolist from '@/components/Todolist' export default {
components:{
Todolist
}
}
</script>
<style>
h1{
color: red;
}
</style>
main.js(通用)
import Vue from 'vue'
import App from './index' const app = new Vue(App)
app.$mount()
在src/pages/index/index.vue中
3.在src/app.json中，增加路由
4.在package.json中的lint，添加--fix属性
5.修正代码，在cmd里，Ctrl+C y 停止正在运行的项目，执行
npm run lint
6.启动项目
npm run dev