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怎么用vue實(shí)現(xiàn)可改變購物數(shù)量的購物車

發(fā)布時(shí)間：2021-07-20 12:57:04 來源：億速云 閱讀：178 作者：chen 欄目：開發(fā)技術(shù)

這篇文章主要講解了“怎么用vue實(shí)現(xiàn)可改變購物數(shù)量的購物車”，文中的講解內(nèi)容簡單清晰，易于學(xué)習(xí)與理解，下面請(qǐng)大家跟著小編的思路慢慢深入，一起來研究和學(xué)習(xí)“怎么用vue實(shí)現(xiàn)可改變購物數(shù)量的購物車”吧！

本文實(shí)例為大家分享了vue實(shí)現(xiàn)改變購物數(shù)量的購物車，供大家參考，具體內(nèi)容如下

效果圖：

怎么用vue實(shí)現(xiàn)可改變購物數(shù)量的購物車

知識(shí)點(diǎn)：

1.computed 計(jì)算屬性
2.filters 過濾器

實(shí)現(xiàn)代碼：

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<style>
    table {
        border-collapse: collapse;
        border-spacing: 0;
        border: 1px solid #ccc;
    }
    
    td,
    th {
        padding: 8px 16px;
        border: 1px solid #ccc;
        text-align: left;
    }
    
    th {
        background-color: #f7f7f7;
        color: #5c6b77;
    }
</style>

<body>
    <div id="box">
        <div v-if="books.length">
            <table>
                <thead>
                    <tr>
                        <th></th>
                        <th>書籍名字</th>
                        <th>出版日期</th>
                        <th>價(jià)格</th>
                        <th>購買數(shù)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.date}}</td>
                        <td>{{item.price | toprice}}</td>
                        <td>
                            <button @click='down(index)' :disabled="item.aunt<=1">-</button> {{item.aunt}}
                            <button @click='add(index)'>+</button>
                        </td>
                        <td>
                            <button @click="remove(index)">移除</button>
                        </td>
                    </tr>
                </tbody>
            </table>
            <h3>總價(jià)：{{getallprice | toprice}}</h3>
        </div>
        <h3 v-else>您沒有購物信息</h3>
    </div>
    <script>
        const vm = new Vue({
            el: "#box",
            data: {
                books: [{
                    id: 1,
                    name: "《vue.js實(shí)戰(zhàn)》",
                    date: "2010.2.4",
                    price: 82.00,
                    aunt: 1
                }, {
                    id: 2,
                    name: "《javascript實(shí)戰(zhàn)》",
                    date: "2010.2.4",
                    price: 108.00,
                    aunt: 1
                }, {
                    id: 3,
                    name: "《html+css實(shí)戰(zhàn)》",
                    date: "2010.2.4",
                    price: 42.50,
                    aunt: 1
                }, {
                    id: 4,
                    name: "《axios實(shí)戰(zhàn)》",
                    date: "2010.2.4",
                    price: 82.00,
                    aunt: 1
                }, {
                    id: 5,
                    name: "《jquery實(shí)戰(zhàn)》",
                    date: "2010.2.4",
                    price: 65.20,
                    aunt: 1
                }, ]
            },
            methods: {
                add(index) {
                    this.books[index].aunt++;
                },
                down(index) {
                    this.books[index].aunt--;
                },
                remove(index) {
                    this.books.splice(index, 1)
                },

            },
            computed: {
                getallprice() {
                    let all = 0;
                    for (let i = 0; i < this.books.length; i++) {
                        all += this.books[i].price * this.books[i].aunt
                    }
                    return all
                }
            },
            filters: {
                toprice(price) {
                    return '￥' + price.toFixed(2)
                },

            }
        })
    </script>
</body>

</html>

感謝各位的閱讀，以上就是“怎么用vue實(shí)現(xiàn)可改變購物數(shù)量的購物車”的內(nèi)容了，經(jīng)過本文的學(xué)習(xí)后，相信大家對(duì)怎么用vue實(shí)現(xiàn)可改變購物數(shù)量的購物車這一問題有了更深刻的體會(huì)，具體使用情況還需要大家實(shí)踐驗(yàn)證。這里是億速云，小編將為大家推送更多相關(guān)知識(shí)點(diǎn)的文章，歡迎關(guān)注！

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