<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<script src="https://cdn.staticfile.org/vue/2.6.12/vue.min.js"></script>
<style>
table,tr,th,td{
border: darkgrey solid 2px;
border-collapse: collapse;
}
</style>
</head>
<body>
<div id="app">
<div v-if='books.length'>
<table>
<thead>
<tr>
<th></th>
<th>书籍名</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.itime}}</td>
<!-- <td>{{getFinalPrice(item.price)}}</td> -->
<td>{{item.price | showPrice}}</td>
<td>
<!-- <button @click='down(item.nub--)'>-</button> -->
<button @click='decrement(index)' v-bind:disabled='item.nub <=1'>-</button>
{{item.nub}}
<!-- <button @click='up(item.nub++)'>+</button> -->
<button @click='increment(index)'>+</button>
</td>
<td>
<button @click='remove(index)'>移除</button>
</td>
</tr>
</tbody>
</table>
<span>总价：{{totalPrice | showPrice}}</span>
</div>
<h2 v-else>购物车为空</h2>
</div>
<script>
const vm=new Vue({
el:'#app',
data:{
books: [
{ id: 1, name: "1", itime: new Date().toLocaleDateString(), price: "44" ,nub: 45 },
{ id: 2, name: "2", itime: new Date().toLocaleDateString(), price: "45" ,nub: 56 },
{ id: 3, name: "3", itime: new Date().toLocaleDateString(), price: "46" ,nub: 66 },
{ id: 4, name: "4", itime: new Date().toLocaleDateString(), price: "47" ,nub: 88 }
]
},
methods:{
// down () {},
// up () {},
// getFinalPrice(price) {
// return '￥'+ Number(price).toFixed(2)
// }
increment(index) {
this.books[index].nub = this.books[index].nub + 1
},
decrement(index) {
this.books[index].nub--
},
remove(index) {
this.books.splice(index,1)
}
},
computed: {
totalPrice() {
let totalPrice = 0;
for(let i = 0; i < this.books.length; i++) {
totalPrice+= this.books[i].price*this.books[i].nub
}
return totalPrice;
}
},
filters: {
showPrice(price) {
return '￥' +Number(price).toFixed(2)
}
}
});
</script>
</body>
</html>
