Vue实现购物车实例代码两则⼀、第⼀种⽐较简单
效果图
实现代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>购物车案例</title>
<script src="cdn.jsdelivr/npm/vue/dist/vue.js"></script>
</head>
<style>
*{
padding: 0;
margin:0
}
ul li{
width: 1200px;
display: flex;
align-items: center;
justify-content: center;
}
li div,.total{
display: inline-block;
width:200px;
height: 50px;
line-height: 50px;
text-align: center;
}
button{
width: 60px;
height: 40px;
text-align: center;
line-height: 40px;
}
</style>
<body>
<div id="app">
<ul>
<goodsitem
v-for="item in goodslist"
:item="item"
:key="item.id"
@onchange="(type)=>{handleCount(type,item)}"
@ondelete="()=>{handleDelete(item.id)}">
</goodsitem>
<div class="total" >总价:{{total}}</div>
</ul>
</div>
</body>
<script>
var computed={
props:{
count:{
type:Number,
require:true
}
},
methods:{
handleCount(type){
this.$emit('onchange',type)
}
},
template:`<div >
<button @click="handleCount('sub')">-</button>
<span>{{count}}</span>
<button @click="handleCount('add')" >+</button>
</div>
`
}
var goodsitem={
props:{
item:{
type:Object,
require:true
}
},
methods:{
handleCount(type){
this.$emit('onchange',type)
},
handleDelete(){
this.$emit('ondelete')
}
},
components:{
computed
},
template:`<li>
<div>{{dsName}}</div>
<div>{{item.price}}</div>
<computed :count="unt" @onchange="handleCount"></computed>  <div>{{item.sum}}</div>
<div><button @click="handleDelete">删除</button></div>
</li>
`
}
var app=new Vue({
el:"#app",
data:{
goodslist:[{
id:1,
goodsName:"⼩可爱",
price:100,
count:1,
sum:100
},{
id:2,
goodsName:"⼩可爱",
price:200,
count:2,
sum:400
},{
id:3,
goodsName:"⼩可爱",
price:300,
count:3,
sum:900
},{
网页购物车代码id:4,
goodsName:"⼩可爱",
price:400,
count:1,
sum:400
},
]
},
methods:{
handleCount(type,item){
if(type=='add'){
}else{
unt==1){
this.handleDelete(item.id)
return
}
}
item.unt*item.price
},
handleDelete(id){
dslist.filter((item)=>{
return id!=item.id
})
}
},
computed:{
total(){
duce((total,item)=>{
return total+=item.sum
},0)
}
},
components:{
goodsitem
}
})
</script>
</html>
⼆、⼀个⽤vue实现的简单响应式购物车案例
实现结果
如上，所有书类数据存在数组⾥，遍历显⽰在表格中，点击+和-可以实现数量和总价格的响应式变化，其中，减号到1时便添加了disabled类型，⽆法点击。价格显⽰时通过过滤器显⽰的，加上Z￥符号和两位⼩数。项⽬结构为三个⽂件。
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="style.css" rel="external nofollow" >
</head>
<body>
<div id="app">
<div v-if="books.length">
<table>
<thead>
<tr>
<th></th>
<th>书籍⽇期</th>
<th>出版⽇期</th>
<th>价格</th>
<th>购买数量</th>
<th>操作 </th>
</tr>
</thead>
<tbody>
<tr v-for="(item,index) in books">
<!--<td v-for="value in item">{{value}}</td>-->
<td>{{item.id}}</td>
<td>{{item.name}}</td>
<td>{{item.date}}</td>
<!--<td>{{getFinalPrice(item.price)}}</td> 下⾯是过滤器语法-->
<td>{{item.price | showPrice}}</td>
<td>
<button @click="increment(index)" v-bind:disabled="unt<=1">-</button>
{{unt}}
<button @click="decrement(index)">+</button>
</td>
<td>
<button @click="removeHandler(index)">移除</button>
</td>
</tr>
</tbody>
</table>
<h2>总价格: {{totalprice | showPrice}}</h2>
</div>
<h2 v-else> 购物车为空</h2>
</div>
<script src="../js/vue.js"></script>
<script src="main.js"></script>
<script></script>
</body>
</html>
main.js
const app = new Vue({
el:"#app",
data: {
books: [
{
id: 1,
name: '算法导论',
date: '2019-01-10',
price: 85.00,
count: 1
},
{
id: 2,
name: '计算机导论',
date: '2019-02-14',
price: 90.00,
count: 2
},
{
id: 3,
name: '科学导论',
date: '2019-09-10',
price: 85.21,
count: 1
},
{
id: 4,
name: '⽹络导论',
date: '2019-08-21',
price: 19.02,
count: 1
},
]
},
methods:{
getFinalPrice(price) {
return '$' + Fixed(2)
},
increment(index){
/*if(this.books[index].count <= 1) return*/
this.books[index].count--
},
decrement(index){
this.books[index].count++
},
removeHandler(index){
this.books.splice(index,1)
}
},
filters:{
showPrice(price){
return '$' + Fixed(2)
}
},
computed:{
totalprice(){
let tprice = 0
for(let i = 0; i< this.books.length; i++)
{
tprice += this.books[i].price * this.books[i].count
}
return tprice
}
}
})
style.css
table{
border: 1px solid #e9e9e9;
border-collapse: collapse;
bordre-spacing: 0;
}
th, td {
padding: 8px 16px;
border: 1px solid #e9e9e9;
text-align: left;
}
th{
backgroud-color: #f7f7f7;
color: #5c6b77;
font-weight: 600;
}
到此这篇关于Vue实现购物车实例代码的⽂章就介绍到这了，更多相关Vue 购物车内容请搜索以前的⽂章或继续浏览下⾯的相关⽂章希望⼤家以后多多⽀持！

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