汤小洋Vue课程代码记录
课程连接地址：http://edu.51cto.com/course/10543.html
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code01
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Hello World</title>
<script src="js/vue.js"></script>
<script>
window.onload=function(){
//配置是否允许vue-devtools检查代码，方便调试，生产环境中需要设置为false
Vue.config.devtools=false;
Vue.config.productionTip=false; //阻止vue启动时生成生产消息
var vm=new Vue({
el:'#itany', //指定关联的元素
data:{ //存储数据
msg:'Hello World'
}
});
}
</script>
</head>
<body>
<div id="itany">
{{msg}} <!-- 两对大括号{{}}称为模板，用来进行数据的绑定显示在页面中 -->
</div>
<h3>
{{msg}}
</h3>
</body>
</html>
code02
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>常用指令：v-model</title>
<script src="js/vue.js"></script>
<script>
window.onload=function(){
new Vue({
// el:'.itany',
el:'div', //vue2.0中不允许将vue实例挂载到<html>或<body>元素，在vue1.0中是可以的
data:{
name:'', //即使没有值，也不能省略，报错
age:21,
flag:true,
nums:[12,4,23,5],
user:{id:9527,name:'唐伯虎'}
}
});
}
</script>
</head>
<body>
<!-- <div id="itany"> -->
<!-- <div class="itany"> -->
<div>
用户名：<input type="text" v-model="name">
<br>
{{name}} <br>
{{age}} <br>
{{flag}} <br>
{{nums}} <br>
{{user}}
</div>
</body>
</html>
code03
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>常用指令：v-for</title>
<script src="js/vue.js"></script>
<script>
window.onload=function(){
new Vue({
el:'#itany',
data:{
arr:[12,4,5,34,2,11],
user:{id:9527,name:'唐伯虎',age:25},
arr2:[12,4,5,34,2,11,12],
users:[
{id:9527,name:'唐伯虎',age:25},
{id:1001,name:'秋香',age:22},
{id:1002,name:'石榴姐',age:24}
]
}
});
}
</script>
</head>
<body>
<div id="itany">
<!-- {{arr}} -->
<ul>
<!-- 普通循环 -->
<!-- <li v-for="value in arr">{{value}}</li> -->
<!-- <li v-for="value in user">{{value}}</li> -->
<!-- 键值循环 -->
<!-- <li v-for="(v,k) in arr">{{k}}={{v}}</li> -->
<!-- <li v-for="(v,k) in user">{{k}}={{v}}</li> -->
<!-- 可以直接循环包含重复数据的集合，可以通过指定:key属性绑定唯一key，当更新元素时可重用元素，提高效率，类似于vue1.0中track-by -->
<!-- <li v-for="(v,k) in arr2" :key="k">{{v}}</li> -->
<li v-for="(user,index) in users">
{{index+1}},{{user.id}},{{user.name}},{{user.age}}
</li>
</ul>
</div>
</body>
</html>
code04
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>常用指令：v-on</title>
<script src="js/vue.js"></script>
<script>
window.onload=function(){
let vm=new Vue({
el:'#itany',
data:{ //存储数据
arr:[12,34,45,23,5]
},
methods:{ //存储方法
show:function(){
console.log('show方法');
},
add(){
// console.log(this); //this表示当前vue实例
// console.log(this===vm); //true
this.arr.push(666); //使用this访问当前实例中的成员
// this.show();
}
}
});
}
</script>
</head>
<body>
<div id="itany">
<!-- <button onclick="show()">点我</button> -->
<button v-on:click="show">点我</button>
<button v-on:click="add()">向数组中添加一个元素</button>
<br>
{{arr}}
<hr>
<button v-on:mouseover="show">鼠标经过</button>
<button v-on:dblclick="show">鼠标双击</button>
</div>
</body>
</html>
code05
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>常用指令：v-show</title>
<script src="js/vue.js"></script>
<script>
window.onload=function(){
let vm=new Vue({
el:'#itany',
data:{
flag:true
},
methods:{
change(){
this.flag=!this.flag;
}
}
});
}
</script>
</head>
<body>
<div id="itany">
<!-- <button v-on:click="change">隐藏</button> -->
<button v-on:click="flag=!flag">隐藏</button>
<hr>
<div style="width: 100px;height: 100px; background-color: red" v-if="flag">欢迎来到南京网博</div>
</div>
</body>
</html>
code06
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>练习：用户管理</title>
<script src="js/vue.js"></script>
<link rel="stylesheet" href="bootstrap/bootstrap.min.css">
<script src="bootstrap/jquery.min.js"></script>
<script src="bootstrap/bootstrap.min.js"></script>
<script>
window.onload=function(){
let vm=new Vue({
el:'.container',
data:{
users:[
{name:'tom',age:24,email:'tom@itany.com'},
{name:'jack',age:23,email:'jack@sina.com'}
],
user:{},
nowIndex:-1 //当前要删除项的索引
},
methods:{
addUser(){
this.users.push(this.user);
this.user={};
},
deleteUser(){
if(this.nowIndex===-1){ //删除所有
this.users=[];
}else{
this.users.splice(this.nowIndex,1); //从指定索引位置开始删除，删除一个
}
}
}
});
}
</script>
</head>
<body>
<div class="container">
<h2 class="text-center">添加用户</h2>
<form class="form-horizontal">
<div class="form-group">
<label for="name" class="control-label col-sm-2 col-sm-offset-2">姓 名：</label>
<div class="col-sm-6">
<input type="text" class="form-control" id="name" v-model="user.name" placeholder="请输入姓名">
</div>
</div>
<div class="form-group">
<label for="age" class="control-label col-sm-2 col-sm-offset-2">年 龄：</label>
<div class="col-sm-6">
<input type="text" class="form-control" id="age" v-model="user.age" placeholder="请输入年龄">
</div>
</div>
<div class="form-group">
<label for="email" class="control-label col-sm-2 col-sm-offset-2">邮 箱：</label>
<div class="col-sm-6">
<input type="text" class="form-control" id="email" v-model="user.email" placeholder="请输入邮箱">
</div>
</div>
<div class="form-group text-center">
<input type="button" value="添 加" class="btn btn-primary" v-on:click="addUser">
<input type="reset" value="重 置" class="btn btn-primary">
</div>
</form>
<hr>
<table class="table table-bordered table-hover">
<caption class="h3 text-center text-info">用户列表</caption>
<thead>
<tr>
<th class="text-center">序号</th>
<th class="text-center">姓名</th>
<th class="text-center">年龄</th>
<th class="text-center">邮箱</th>
<th class="text-center">操作</th>
</tr>
</thead>
<tbody>
<tr v-for="(user,index) in users" class="text-center">
<td>{{index+1}}</td>
<td>{{user.name}}</td>
<td>{{user.age}}</td>
<td>{{user.email}}</td>
<td>
<button class="btn btn-danger btn-sm" data-toggle="modal" data-target="#del" v-on:click="nowIndex=index">删除</button>
</td>
</tr>
<tr>
<td colspan="5" class="text-right">
<button class="btn btn-danger btn-sm" data-toggle="modal" data-target="#del" v-on:click="nowIndex=-1">删除所有</button>
</td>
</tr>
</tbody>
</table>
<!-- 模态框，弹出框 -->
<div class="modal fade" id="del">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button class="close" data-dismiss="modal">
<span>×</span>
</button>
<h4 class="modal-title" v-show="nowIndex!==-1">确认要删除用户：{{users[nowIndex]?users[nowIndex].name:''}} 吗？</h4>
<h4 class="modal-title" v-show="nowIndex===-1">确认要删除所有用户吗？</h4>
</div>
<div class="modal-body text-center">
<button class="btn btn-primary" data-dismiss="modal">取消</button>
<button class="btn btn-primary" data-dismiss="modal" v-on:click="deleteUser">确认</button>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
code07
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>事件简写和事件对象$event</title>
<script src="js/vue.js"></script>
<script>
window.onload=function(){
let vm=new Vue({
el:'#itany',
methods:{
show(){
console.log(111);
},
print(e){
// console.log(e);
console.log(e.target.innerHTML); //DOM对象
console.log(this);
}
}
});
}
</script>
</head>
<body>
<div id="itany">
<button v-on:click="show">点我</button>
<button @click="show">点我</button>
<hr>
<button @click="print($event)">Click Me</button>
</div>
</body>
</html>
code08
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>事件冒泡和默认行为</title>
<script src="js/vue.js"></script>
<script>
window.onload=function(){
let vm=new Vue({
el:'#itany',
methods:{
show(){
console.log(111);
// e.stopPropagation();
},
print(){
console.log(222);
},
write(){
console.log(333);
},
study(){
console.log(444);
// e.preventDefault();
}
}
});
}
</script>
</head>
<body>
<div id="itany">
<div @click="write">
<p @click="print">
<!-- <button @click="show($event)">点我</button> -->
<button @click.stop="show">点我</button>
</p>
</div>
<hr>
<!-- <a href="#" @click="study($event)">俺是链接</a> -->
<a href="#" @click.prevent="study">俺是链接</a>
</div>
</body>
</html>
code09
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>键盘事件</title>
<script src="js/vue.js"></script>
<script>
/**
* 自定义键位别名
*/
Vue.config.keyCodes={
a:65,
f1:112
}
window.onload=function(){
let vm=new Vue({
el:'#itany',
methods:{
show(e){
console.log(e.keyCode);
if(e.keyCode==13){
console.log('您按了回车');
}
},
print(){
// console.log('您按了回车');
// console.log('您按了方向键上');
console.log('11111');
}
}
});
}
</script>
</head>
<body>
<div id="itany">
<!-- 键盘事件：@keydown、@keypress、@keyup -->
<!-- 用户名：<input type="text" @keydown="show($event)"> -->
<!-- 简化按键的判断 -->
<!-- 用户名：<input type="text" @keydown="show($event)"> -->
<!-- 用户名：<input type="text" @keydown.13="print"> -->
<!-- 用户名：<input type="text" @keydown.enter="print"> -->
<!-- 用户名：<input type="text" @keydown.up="print"> -->
用户名：<input type="text" @keydown.f1="print">
<!-- 事件修饰符 -->
<button @click.once="print">只触发一次</button>
</div>
</body>
</html>
code10
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>属性绑定和属性的简写</title>
<script src="js/vue.js"></script>
<script>
window.onload=function(){
let vm=new Vue({
el:'#itany',
data:{
url:'https://ss0.bdstatic.com/5aV1bjqh_Q23odCf/static/superman/img/logo/bd_logo1_31bdc765.png',
w:'200px',
h:'100px'
}
});
}
</script>
</head>
<body>
<div id="itany">
<!-- <img src="{{url}}"> -->
{{url}}
<!-- 可以直接访问vue中的数据，不需要使用{{}} -->
<!-- <img v-bind:src="url"> -->
<img :src="url" :width="w" :height="h">
</div>
</body>
</html>
code11
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>class和style属性</title>
<script src="js/vue.js"></script>
<script>
window.onload=function(){
let vm=new Vue({
el:'#itany',
data:{
bb:'aa',
dd:'cc',
flag:true,
num:-2,
hello:{aa:true,cc:true},
xx:{color:'blue',fontSize:'30px'},
yy:{backgroundColor:'#ff7300'}
}
});
}
</script>
<style>
.aa{
color:red;
font-size:20px;
}
.cc{
background-color:#ccc;
}
</style>
</head>
<body>
<div id="itany">
<!--
class属性
-->
<!-- <p class="aa">南京网博</p> --> <!-- 可以访问，普通css方式 -->
<!-- <p :class="aa">南京网博</p> --> <!-- 不可以，Vue的属性绑定时不能直接css样式 -->
<!-- 方式1:变量形式 -->
<!-- <p :class="bb">南京网博</p> -->
<!-- 方式2：数组形式，同时引用多个 -->
<!-- <p :class="[bb,dd]">南京网博</p> -->
<!-- 方式3：json形式，常用！！！ -->
<!-- <p :class="{aa:true,cc:flag}">南京网博</p> -->
<!-- <p :class="{aa:num>0}">南京网博</p> -->
<!-- 方式4：变量引用json形式 -->
<!-- <p :class="hello">南京网博</p> -->
<!--
style属性
-->
<p :style="[xx,yy]">itany</p>
</div>
</body>
</html>
code12
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>模板</title>
<script src="js/vue.js"></script>
<script>
window.onload=function(){
let vm=new Vue({
el:'#itany',
data:{
msg:'welcome to itany'
},
created:function(){
// alert(111);
}
});
}
</script>
<style>
/* 必须配置css样式，否则不生效 */
[v-cloak]{
display:none;
}
</style>
</head>
<body>
<div id="itany">
<input type="text" v-model="msg">
<h3>aaa<span v-cloak>{{msg}}</span></h3>
<h3 v-text="msg"></h3>
<h3 v-html="msg"></h3>
<h3 v-once>{{msg}}</h3>
<h3 v-pre>{{msg}}</h3>
</div>
</body>
</html>
code13
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>自定义过滤器</title>
<script src="js/vue.js"></script>
<script>
/**
* 自定义全局过滤器
*/
Vue.filter('addZero',function(data){
// console.log(data);
return data<10?'0'+data:data;
});
/*Vue.filter('number',(data,n) => {
// console.log(data,n);
return data.toFixed(n);
});*/
Vue.filter('date',data => {
let d=new Date(data);
return d.getFullYear()+'-'+(d.getMonth()+1)+'-'+d.getDate()+' '+d.getHours()+':'+d.getMinutes()+':'+d.getSeconds();
});
window.onload=function(){
let vm=new Vue({
el:'#itany',
data:{
currentTime:Date.now()
},
filters:{ //局部过滤器
number:(data,n) => {
return data.toFixed(n);
}
}
});
}
</script>
</head>
<body>
<div id="itany">
<!-- <h3>{{3 | addZero}}</h3> -->
<!-- 课后作业：自己实现toFiexed()四舍五入的功能 -->
<h3>{{12.345678 | number(2)}}</h3>
<!-- <h3>{{12.045 | number(2)}}</h3> -->
<h3>{{currentTime | date}}</h3>
</div>
</body>
</html>
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