HTML
<!-- index.html -->
<!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="./style.css">
</head>
<body>
<div id="app"></div>
<template id="my-app">
<template v-if="books.length >0">
<table>
<thead>
<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>
</thead>
<tbody>
<tr v-for="(book,index) in books">
<td>{{index + 1}}</td>
<td>{{book.name}}</td>
<td>{{book.date}}</td>
<td>{{formatPrice(book.price)}}</td>
<td>
<button :disabled="book.count <= 1" @click="decrement(index)">-1</button>
<span class="counter">{{book.count}}</span>
<button @click="increment(index)">+1</button>
</td>
<td>
<button @click="removeBook(index)">移除</button>
</td>
</tr>
</tbody>
</table>
<h2>总价格：{{formatPrice(totalPrice)}}</h2>
</template>
<template v-else>
<h2>购物车为空~</h2>
</template>
</template>
<script src="../js/vue.js"></script>
<script src="./index.js"></script>
</body>
</html>