<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
table {
border: 1px solid rgb(153, 151, 151);
border-collapse: collapse;
border-spacing: 0;
}
th,
td {
padding: 0px 16px;
border: 1px solid #e9e9e9;
text-align: center;
}
th {
background-color: #f7f7f7;
color: #5c6b77;
font-weight: 600;
}
</style>
<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>出版时间</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)"
v-bind:disabled="item.count <= 1"
>
-
</button>
{{item.count}}
<button @click="increment(index)">+</button>
</td>
<td><button @click="removeClick(index)">移除</button></td>
</tr>
</tbody>
</table>
<h2>总价格：{{totaPrice | showPrice}}</h2>
</div>
<h2 v-else>购物车为空</h2>
</div>
<script src="../js/vue.js"></script> // 这里的路径记得要修改呦(๑*◡*๑)
<script>
const app = new Vue({
el: "#app",
data: {
books: [
{
id: 1,
name: "《萧法导论》",
date: "2006-9",
price: 45,
count: 1,
},
{
id: 2,
name: "《哲学理论》",
date: "2008-9",
price: 70,
count: 1,
},
{
id: 3,
name: "《意林小小姐》",
date: "2016-7",
price: 80,
count: 1,
},
{
id: 4,
name: "《猜猜我是谁》",
date: "2019-9",
price: 50,
count: 1,
},
],
},
methods: {
increment(index) {
this.books[index].count++
console.log("increment");
},
decrement(index) {
this.books[index].count--
console.log("decrement");
},
removeClick(index) {
this.books.splice(index, 1)
}
},
computed: {
totaPrice() {
let totaPrice = 0;
for(let i = 0; i < this.books.length;i++){
totaPrice += this.books[i].price * this.books[i].count
}
return totaPrice
}
},
filters: {
showPrice(price) {
return "￥" + price.toFixed(2);
},
},
});
</script>
</body>
</html>
