HTML首页
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="/css/index.css" >
</head>
<body>
<div id="app">
<div v-if="books.length != 0">
<table>
<thead>
<tr>
<th></th>
<th>书籍名称</th>
<th>出版如期</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>{{item.id}}</td>
<td>{{item.name}}</td>
<td>{{item.date}}</td>
<td>{{item.price | showPrice}}</td>
<td>
<button @click="decrement(index)" :disabled="item.count <= 1">-</button>
{{item.count}}
<button @click="increment(index)">+</button>
</td>
<td><button @click="removeHandle(index)">移除</button></td>
</tr>
</tbody>
</table>
<h2>总价格为：{{totalPrice | showPrice}}</h2>
</div>
<h2 v-else>购物车为空</h2>
</div>
<script src="/js/vue.js"></script>
<script src="/js/index.js"></script>
</body>
</html>
css代码
* {
margin: 0;
padding: 0;
}
table {
margin: 100px 0 0 100px;
border: 1px solid #e9e9e9;
border-collapse: collapse;
border-spacing: 0;
}
th,
td {
padding: 8px 16px;
border: 1px solid #e9e9e9;
text-align: left;
}
th {
background-color: #f7f7f7;
color: black;
font-weight: 6000 ;
}
h2 {
width: 500px;
margin-left: 100px;
}
button {
padding: 5px;
}
js代码（Vue）
const app = new Vue({
el:"#app",
data:{
books:[
{
id:1,
name:'《算法导论》',
date:'2019-2',
price:85.00,
count:1
},
{
id:2,
name:'《计算机基础》',
date:'2019-2',
price:95.00,
count:1
},
{
id:3,
name:'《c++高级语言》',
date:'2019-2',
price:89.00,
count:1
},
{
id:4,
name:'《编译原理》',
date:'2019-2',
price:77.00,
count:1
},
]
},
methods:{
decrement(index){
this.books[index].count--
},
increment(index){
this.books[index].count++
},
removeHandle(index){
this.books.splice(index,1)
}
},
computed:{
totalPrice(){
let finalPrice = 0
for(let i = 0; i < this.books.length; i++){
finalPrice += this.books[i].price * this.books[i].count
}
return finalPrice
}
},
filters:{
showPrice(price){
return '￥' + price.toFixed(2)
}
}
})
运行结果
