index.html文件
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>购物车</title>
<!-- 样式引入 -->
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div id="app" v-cloak>
<template v-if="list.length">
<table>
<thead>
<tr>
<th></th>
<th>商品名称</th>
<th>商品单价</th>
<th>购买数量</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<tr v-for="(item,index) in list">
<td>{
{index+1}}</td>
<td>{
{item.name}}</td>
<td>{
{item.price}}</td>
<td>
<button @click="handleReduce(index)"
:disabled="item.count===1">-</button>
{
{item.count}}
<button @click="handleAdd(index)">+</button>
</td>
<td>
<button @click="handleRemove(index)">移除</button>
</td>
</tr>
</tbody>
</table>
<div>总价：￥{
{totalPrice}}</div>
</template>
<div v-else>购物车为空</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue.min.js"></script>
<!-- 引入js -->
<script src="index.js"></script>
</body>
</html>
index.js文件
//实例初始化
var app = new Vue({
el:'#app',
data:{
//商品列表
list:[
{
id:1,
name:'iPhone 7',
price:6188,
count:1,
},
{
id:2,
name:'iPad Pro',
price:5888,
count:1,
},
{
id:3,
name:'MacBook Pro',
price:21488,
count:1,
}
]
},
computed: {
totalPrice:function(){
var total=0;
for(let i=0;i<this.list.length;i++){
var item=this.list[i];
total+=item.price*item.count;
}
//将结果转换为带有千位分割符的数字
return total.toString().replace(/\B(?=(\d{3})+$)/g,',');
}
},
methods: {
handleReduce:function(index) {
if(this.list[index].count===1) return;
this.list[index].count--;
},
handleAdd:function(index){
this.list[index].count++;
},
handleRemove:function(index){
this.list.splice(index, 1);
}
},
})
style.css文件
[v-cloak]{
display: none;
}
table{
border: 1px solid #e9e9e9;
border-collapse: collapse;
border-spacing: 0;
empty-cells: show;
}
th, td{
padding: 8px 16px;
border: 1px solid #e9e9e9;
text-align: left;
}
th{
background: #f7f7f7;
color: #5c6b77;
font-weight: 600;
white-space: nowrap;
}