Vue实现购物车实例代码两则

(编辑:jimmy 日期: 2024/11/1 浏览:2)

一、第一种比较简单

效果图

Vue实现购物车实例代码两则

实现代码:

<!DOCTYPE html>
<html lang="en">
<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>购物车案例</title>
 <script src="/UploadFiles/2021-04-02/vue.js">

二、一个用vue实现的简单响应式购物车案例

实现结果

Vue实现购物车实例代码两则

如上,所有书类数据存在数组里,遍历显示在表格中,点击+和-可以实现数量和总价格的响应式变化,其中,减号到1时便添加了disabled类型,无法点击。 价格显示时通过过滤器显示的,加上Z¥符号和两位小数。项目结构为三个文件。

index.html

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Title</title>
 <link rel="stylesheet" href="style.css" rel="external nofollow" >
</head>
<body>
<div id="app">
 <div v-if="books.length">
 <table>
 <thead>
 <tr>
 <th></th>
 <th>书籍日期</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 v-for="value in item">{{value}}</td>-->
 <td>{{item.id}}</td>
 <td>{{item.name}}</td>
 <td>{{item.date}}</td>
 <!--<td>{{getFinalPrice(item.price)}}</td> 下面是过滤器语法-->
 <td>{{item.price | showPrice}}</td>
 <td>
 <button @click="increment(index)" v-bind:disabled="item.count<=1">-</button>
 {{item.count}}
 <button @click="decrement(index)">+</button>
 </td>
 <td>
 <button @click="removeHandler(index)">移除</button>
 </td>
 </tr>
 </tbody>
 </table>
 <h2>总价格: {{totalprice | showPrice}}</h2>
 </div>
 <h2 v-else> 购物车为空</h2>
</div>
<script src="/UploadFiles/2021-04-02/vue.js">

main.js

const app = new Vue({
 el:"#app",
 data: {
 books: [
 {
 id: 1,
 name: '算法导论',
 date: '2019-01-10',
 price: 85.00,
 count: 1
 },
 {
 id: 2,
 name: '计算机导论',
 date: '2019-02-14',
 price: 90.00,
 count: 2
 },
 {
 id: 3,
 name: '科学导论',
 date: '2019-09-10',
 price: 85.21,
 count: 1
 },
 {
 id: 4,
 name: '网络导论',
 date: '2019-08-21',
 price: 19.02,
 count: 1
 },
 ]
 },
 methods:{
 getFinalPrice(price) {
 return '$' + price.toFixed(2)
 },
 increment(index){
 /*if(this.books[index].count <= 1) return*/
 this.books[index].count--
 },
 decrement(index){
 this.books[index].count++
 },
 removeHandler(index){
 this.books.splice(index,1)
 }
 },
 filters:{
 showPrice(price){
 return '$' + price.toFixed(2)
 }
 },
 computed:{
 totalprice(){
 let tprice = 0
 for(let i = 0; i< this.books.length; i++)
 {
 tprice += this.books[i].price * this.books[i].count
 }
 return tprice
 }
 }
})

style.css

table{
 border: 1px solid #e9e9e9;
 border-collapse: collapse;
 bordre-spacing: 0;
}

th, td {
 padding: 8px 16px;
 border: 1px solid #e9e9e9;
 text-align: left;
}

th{
 backgroud-color: #f7f7f7;
 color: #5c6b77;
 font-weight: 600;
}