Vue - 案例：购物车
程序员文章站
2022-05-20 14:57:14
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main.js
const app = new Vue({
el: '#app',
data: {
books: [{
id: 1,
name: 'International Mobility Agent',
date: 'Mon Nov 04 2019 19:26:59 GMT+0800 (中国标准时间)',
price: 348.10,
count: 4
},
{
id: 2,
name: 'Regional Metrics Developer',
date: 'Sat Sep 28 2019 13:24:49 GMT+0800 (中国标准时间)',
price: 867.67,
count: 11
},
{
id: 3,
name: 'Product Applications Technician',
date: 'Mon Nov 25 2019 01:23:04 GMT+0800 (中国标准时间)',
price: 751.74,
count: 2
},
{
id: 4,
name: 'Internal Identity Supervisor',
date: 'Wed May 29 2019 23:08:32 GMT+0800 (中国标准时间)',
price: 52.83,
count: 3
},
{
id: 5,
name: 'Future Web Facilitator',
date: 'Sat Sep 14 2019 13:16:19 GMT+0800 (中国标准时间)',
price: 897.66,
count: 5
},
{
id: 6,
name: 'Legacy Infrastructure Strategist',
date: 'Fri Nov 08 2019 12:35:13 GMT+0800 (中国标准时间)',
price: 851.90,
count: 8
},
]
},
computed: {
totalPrice() {
return this.books.reduce((total, cur) => {
return total += (cur.price * cur.count);
}, 0).toFixed(2);
}
},
})
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div id='app'>
<div v-if='books.length'>
<table>
<thead>
<tr>
<th> </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='(book, index) in books' :key='book.id'>
<td>{{book.id}}</td>
<td>《{{book.name}}》</td>
<td>{{book.date}}</td>
<td>¥{{book.price}}</td>
<td>
<button @click='book.count--' :disabled='book.count<1'>-</button>
{{book.count}}
<button @click='book.count++'>+</button>
</td>
<td>
<button @click='books.splice(index, 1 )'>移除</button>
</td>
</tr>
</tbody>
</table>
<h2>总价:{{totalPrice}}</h2>
</div>
<h2 v-else>购物车为空</h2>
</div>
<script src="../dist/vue.js"></script>
<script src="main.js"></script>
</body>
</html>
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;
}