vue基础小案例——购物车

秒速五厘米 2021-10-26 13:32 408阅读 0赞

<!DOCTYPE html>
    <html lang="zh-CN">
    
    <head>
        <meta charset="UTF-8">
        <title>Document</title>
        <link rel="stylesheet" href="">
    </head>
    
    <body>
        <div id="app">
            <table>
                <thead>
                    <tr>
                        <th>id</th>
                        <th>书籍名称</th>
                        <th>出版日期</th>
                        <th>购买价格</th>
                        <th>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.data}}</td>
                        <td>{
        {item.price | showPrice}}</td>
                        <td>
                            <button @click="dec(index)" :disabled="item.count<=0">-</button>
                            {
         {item.count}}
                            <button @click="add(index)">+</button>
                        </td>
                        <td>
                            <button @click="removeBook(index)">移除</button>
                        </td>
                    </tr>
                </tbody>
            </table>
            <div>总价格：{
        {allCount()}}</div>
        </div>
        <script src="./vue.js">
        </script>
        <script>
            const vm = new Vue({
                el: "#app",
                data: {
                    ay: '和辐射的恐惧',
                    books: [
                        {
                            id: 1,
                            name: '小绿书',
                            data: '2002-9',
                            price: 100,
                            count: 1
                        },
                        {
                            id: 2,
                            name: '小红书',
                            data: '2016-9',
                            price: 16700,
                            count: 1
                        },
                        {
                            id: 3,
                            name: '发生的书',
                            data: '2026-9',
                            price: 600,
                            count: 1
                        },
                        {
                            id: 4,
                            name: '奥古斯丁',
                            data: '2004-9',
                            price: 3455,
                            count: 1
                        },
                        {
                            id: 5,
                            name: '阀手动阀',
                            data: '2046-9',
                            price: 7983,
                            count: 1
                        }
                    ]
                },
                methods: {
                    add(i) {
                        this.books[i].count++;
                    },
                    dec(i) {
                        this.books[i].count--;
                    },
                    allCount() {
                        let all =0;
                        for(let i=0;i<this.books.length;i++){
                            all+=this.books[i].count*this.books[i].price;
                        }
                        return all;
                    },
                    removeBook(i){
                        this.books.splice(i,1);
                    }
                },
                filters: {
                    showPrice(price) {
                        return '$' + price.toFixed(2);
                    }
                }
            })
        </script>
    </body>
    
    </html>

![1200510-20190731165505520-1531711462.png][]

转载于:https://www.cnblogs.com/carry-2017/p/11277506.html

[1200510-20190731165505520-1531711462.png]: /images/20211026/e08a635d2e474dc4a3215e0c6af68734.png