第5章购物车示例
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>购物车示例</title>
<script src="https://unpkg.com/vue/dist/vue.min.js"></script>
<style>
[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-color: #f7f7f7;
color: #5c6b77;
font-weight: 600;
white-space: nowrap;
}
</style>
</head>
<body>
<div id="app" v-cloak>
<template v-if="list.length">
<table>
<thead>
<tr>
<th></th>
<th>商品名称</th>
<th>商品价格</th>
<th>购买数量</th>
<th>操作</th>
</tr>
</thead>
<tbody>
<tr v-for="(item, index) of 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>
var myData = {
list: [
{ id: 1, name: '27 英寸 iMac', price: 13832, count: 1 },
{ id: 2, name: '21.5 英寸 iMac', price: 8390, count: 1 },
{ id: 3, name: '13 英寸 MacBook pro', price: 9999, count: 1 },
{ id: 4, name: '16 英寸 MacBook pro', price: 18999, count: 1 },
{ id: 5, name: '11 英寸 iPad Pro', price: 6229, count: 1 },
{ id: 6, name: '12.9 英寸 iPad Pro', price: 7899, count: 1 },
{ id: 7, name: 'iPhone SE', price: 3299, count: 1 },
{ id: 8, name: 'iPhone 11', price: 5499, count: 1 },
{ id: 9, name: 'iPhone 11 Pro', price: 8699, count: 1 },
{ id: 10, name: 'iPhone 11 Pro Max', price: 9599, count: 1 }
]
};
var app = new Vue({
el: "#app",
data: myData,
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, ',');
}
},
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);
}
},
});
</script>
</body>
</html>
截屏2020-04-27 下午3.24.16.png
参考苹果官网的设备价格。
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