index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="../js/vue.js"></script>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div id="app">
<div v-if="books.length">
<table>
<thead>
<tr>
<th>序号</th>
<th>书籍名称</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>{{item.id}}</td>
<td>{{item.name}}</td>
<td>{{item.date}}</td>
<td>{{item.price }}</td>
<td>
<button @click="incremrnt(index)">+</button>
{{item.count}}
<button @click="decrement(index)" v-bind:disabled="item.count<=1">-</button>
</td>
<td @click="remove(index)">移除</td>
</tr>
</tbody>
</table>
<h2>总价格：{{totalPrice | showPrice}}</h2>
</div>
<h2 v-else>购物车为空</h2>
</div>
<script>
</script>
<script src="main.js"></script>
</body>
</html>
main.js
const app = new Vue({
el: '#app',
data: {
books: [
{
id: 1,
name: '<<算法>>',
date: "2012-02",
price: "52",
count: 1
},
{
id: 2,
name: '<<人道>>',
date: "2012-02",
price: "522",
count: 1
},
{
id: 3,
name: '<<民法>>',
date: "2012-02",
price: "53",
count: 1
},
{
id: 4,
name: '<<爱了算了>>',
date: "2012-02",
price: "54",
count: 1
},
{
id: 5,
name: '<<人生>>',
date: "2012-02",
price: "55",
count: 1
}
]
},
methods: {
incremrnt(index) {
this.books[index].count++;
console.log(index);
},
decrement(index) {
this.books[index].count--;
console.log(index);
},
remove(index) {
this.books.splice(index, 1);
}
},
filters: {
showPrice(price) {
return "￥" + price.toFixed(2);
}
},
computed:{
totalPrice(){
let totalPrice=0;
for (let i = 0; i <this.books.length ; i++) {
totalPrice+=this.books[i].price*this.books[i].count;
}
return totalPrice;
}
}
})
style.css
table{
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: #5c6b77;
font-weight: 600;
}
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