html+vue.js:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>购物车示例</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div id="app" >
<template v-if="list.length">
<table>
<thead>
<tr>
<th></th>
<th>商品名称</th>
<th>商品单价</th>
<th>商品数量</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://unpkg.com/vue/dist/vue.min.js"></script>
<script >
var app = new Vue({
el: "#app",
data:{
list:[
{
id:1,
name:'iphone7',
price:6188,
count:1
},
{
id:2,
name:'iPad Pro',
price:5888,
count:1
},
{
id:3,
name:'mac',
price:21488,
count:1
}
]
},
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);
}
},
computed:{
totalPrice:function(){
var total = 0;
for(var i=0;i<this.list.length;i++){
var item = this.list[i];
total+=item.price*item.count;
}
return total.toString().replace(/B(?=(d{3})+$)/g,',');
}
}
});
</script>
</body>
</html>
css:
[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: center;
}
th{
background: #f7f7f7;
color:#5c6b77;
font-weight: 600;
white-space: nowrap;
}
最后结果：