用html,css和js写购物车移动端加减全反选及计算总价

发布时间:2023年12月23日

目录

html代码

css代码

js代码

完整代码

效果图


html代码

 <script src="./flexible.js"></script>
    <!-- <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script> -->

    <div class="header">
        <div class="header-left">
            <svg class="icon" aria-hidden="true">
                <use xlink:href="#icon-xiangzuojiantou"></use>
            </svg>
        </div>
        <div class="header-middle">购物车(6)</div>
        <div class="header-right">
            <svg class="icon" aria-hidden="true">
                <use xlink:href="#icon-duanxinxiaoxixinxi
                "></use>
            </svg>
        </div>

    </div>
    <div class="main">
        <div class="main-top">
            <div class="radio2">
                <div class="box1">
                    <input type="checkbox" id="checkAll">

                    <img class="kin" src="./img/icon/icon-kin.png" alt="">
                    <span class="ac">艾畅旗舰店</span>
                </div>


                <div class="box2"> <span>领劵</span> <span>编辑</span></div>

            </div>
        </div>
        <ul>
            <!-- <li>
                    <div class="radio"><input type="radio"></div>
                    <div class="img">
                        <img src="./img/pd/sf-16.jpg"alt="">
                    </div>
                    <div class="right">
                        <h3>【黑卡96折】Apple苹果iPhone 7(A1660)移动联通电信4C手机国内...</h3>
                        <span class="color">重量:3.3kg颜色:标配版</span>
                        <div class="flex">
                            <div id="red">¥100.00</div>
                            <div class="input">
                                <button class="decrease">-</button>
                                <span class="input-inner">1</span>
                                <button class="increase">+</button>
                            </div>
                         </div>
                    </div>

                </li> -->

        </ul>
        <div class="all">本店总计:¥<span class="digit">0.00</span></div>
    </div>


    <div class="footer">
        <div class="radio1">
            <input type="radio">

        </div>
        <div class="footer-middle">
            <span class="select">全选</span>
            <span class="total">合计: <span class="digitall">0.00</span> </span>
        </div>
        <div class="go">
            <span>去结算</span>


        </div>
    </div>

css代码

     * {
            padding: 0;
            margin: 0;
            list-style: none;
        }

        body {
            background-color: #f0f2f5;
        }

        html,
        body {
            padding: 0;
            margin: 0;
            width: 100%;
            height: 100%;
            position: absolute;
            left: 0;
            top: 0;
            overflow: hidden;
            overflow-y: auto;
        }

        .header {
            width: 10rem;
            height: 1.2rem;
            background-color: white;
            position: fixed;
            top: 0;
            left: 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .header-left {
            margin-left: .2667rem;
        }

        .header-right {
            margin-right: .2667rem;
        }

        .img img {
            width: 2.1333rem;
            height: 2.1333rem;
            margin-left: 1.0667rem;
        }

        /* .input{
        border: 1px solid red;
    } */
        .input .input-inner {
            display: inline-block;
            background-color: white;
            width: .8533rem;
            /* height: .5867rem; */
            height: .64rem;
            border-left: 1px solid #e5e5e5;
            border-right: 1px solid #e5e5e5;
            text-align: center;
            /* font-size: .32rem; */

        }

        .increase,
        .decrease {
            width: .6133rem;
            height: .5867rem;
            outline: none;
            font-size: .3733rem;
            border: none;
            background-color: white;
        }

        .right {
            margin-right: .2667rem;
        }

        .right h3 {
            font-size: .32rem;
        }

        .right .color {
            font-size: .32rem;
            color: #666;
        }

        .main {
            margin-top: 1.4667rem
                /* width: 10rem;
    height: 2.4533rem; */

        }

        .main ul li {
            width: 10rem;
            height: 2.4533rem;
            display: flex;
            background-color: white;

        }

        #red {
            font-size: .4267rem;
            color: red;
        }

        .input {
            display: inline-flex;
            width: 2rem;
            height: .64rem;
            border: 1px solid #e5e5e5;


        }

        .flex {
            display: flex;
            justify-content: space-between;
        }

        .main ul {
            /* margin-bottom: 2.6667rem; */
            margin-bottom: .2667rem;
        }

        .main ul li {
            margin-top: .2667rem;
            /* border: 1px solid blue; */
        }

        .radio input {
            width: .48rem;
            height: .9333rem;
            margin-top: .5333rem;
            margin-left: .2667rem;




        }


        .footer {
            width: 10rem;
            height: 1.3333rem;
            background-color: white;
            position: fixed;
            left: 0;
            bottom: 0;

            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .footer .radio1 input {
            width: .48rem;
            height: .9333rem;
            margin-top: .2667rem;

            margin-left: .2667rem;

        }

        .select {
            font-size: .32rem;



        }

        .footer .go {
            width: 3.6rem;
            height: 1.3067rem;
            background-color: red;
            color: white;
            /* float: right; */
            text-align: center;
            /* font-size: .3733rem; */
            display: inline-flex;
            justify-content: center;
            align-items: center;

        }

        .total {
            margin-left: .4rem;
            color: red;
        }

        .icon {
            width: 1em;
            height: 1em;
            vertical-align: -0.15em;
            fill: currentColor;
            overflow: hidden;
        }



        .all {
            width: 10rem;
            /* height: 2.6667rem; */
            height: .9333rem;
            background-color: white;
            margin-bottom: 1.6rem;
            font-size: .32rem;
            line-height: .9333rem;
            text-align: right;

        }

        .digit {
            /* margin-left: .4rem; */
            margin-right: .4rem;
            color: red;
        }

        .kin {
            width: .5333rem;
            height: .5333rem;
            vertical-align: middle;
        }

        .main-top {
            width: 10rem;
            height: 1.0667rem;
            background-color: white;
        }

        .radio2 input {
            width: .48rem;
            height: .9333rem;
            margin-left: .2667rem;
            margin-right: .5333rem;

        }

        .radio2 .ac {
            font-size: .32rem;

        }

        .radio2 {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .box2 span {
            font-size: .32rem;
            margin-right: .2667rem;
        }

        .box1 {
            display: inline-flex;
            align-items: center;
        }

js代码

  const list = [
            {
                id: 1,
                url: "./img/pd/sf-16.jpg",
                count: 1,
                isChecked: false,
                price: 100

            },
            {
                id: 2,
                url: "./img/pd/sf-15.jpg",
                count: 3,
                isChecked: true,
                price: 100.00
            },
            {
                id: 3,
                url: "./img/pd/sf-14.jpg",
                count: 3,
                isChecked: false,
                price: 100.00
            },
            {
                id: 4,
                url: "./img/pd/sf-8.jpg",
                count: 3,
                isChecked: false,
                price: 100.00
            },
            {
                id: 5,
                url: "./img/pd/sf-9.jpg",
                count: 3,
                isChecked: false,
                price: 100.00
            },
            {
                id: 6,
                url: "./img/pd/sf-10.jpg",
                count: 3,
                isChecked: false,
                price: 100.00
            },
            {
                id: 7,
                url: "./img/pd/sf-11.jpg",
                count: 3,
                isChecked: false,
                price: 100.00
            },
            {
                id: 8,
                url: "./img/pd/sf-12.jpg",
                count: 3,
                isChecked: true,
                price: 100.00
            }


        ]


        const checkAll = document.querySelector('#checkAll')

        function render() {
            let str = ''
            for (let i = 0; i < list.length; i++) {
                str += `

            <li data-id="${i}">
                    <div class="radio">
                        <input id="cks" type="checkbox"${list[i].isChecked ? 'checked' : ''} ></div>
                    <div class="img">
                        <img src="${list[i].url}"alt="">
                    </div>
                    <div class="right">
                        <h3>【黑卡96折】Apple苹果iPhone 7(A1660)移动联通电信4C手机国内...</h3>
                        <span class="color">重量:3.3kg颜色:标配版</span>
                        <div class="flex">
                            <div id="red">¥${list[i].price}</div>
                            <div class="input">
                                <button class="decrease">-</button>
                                <span class="input-inner">${list[i].count}</span>
                                <button class="increase">+</button>
                            </div>
                         </div>
                    </div>

                </li>

            `
            }

            checkAll.checked = list.every(ele => ele.isChecked === true)
            //被勾选组成的数组
            const newArr = list.filter(item => item.isChecked)
            //计算总价
            const totalPrice = newArr.reduce((prev, item) =>
                prev += item.count * item.price
                , 0)
            document.querySelector('.all .digit').innerHTML = totalPrice.toFixed(2)
            document.querySelector('.total .digitall').innerHTML = totalPrice.toFixed(2)

            document.querySelector('ul').innerHTML = str

        }
        render()



        const ul = document.querySelector('.main ul')
        ul.addEventListener('click', function (e) {
            //加
            if (e.target.className === 'increase') {
                const idx = e.target.parentNode.parentNode.parentNode.parentNode.dataset.id
                list[idx].count++
                render()
            }
            //减
            if (e.target.className === 'decrease') {
                const idx = e.target.parentNode.parentNode.parentNode.parentNode.dataset.id
                list[idx].count--
                if (list[idx].count <= 1) {
                    list[idx].count = 1
                }
                render()
            }
            //多选一
            if (e.target.tagName === 'INPUT') {
                const idx = e.target.parentNode.parentNode.dataset.id
                list[idx].isChecked = e.target.checked
                render()

            }
        })

        //单个商店的全选
        const cks = document.querySelectorAll('#cks')
        checkAll.addEventListener('click', function () {
            list.forEach(item => item.isChecked = this.checked)
            render()
        })



完整代码

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./download (2)/font_4370149_lbec5agznkr/iconfont.js"></script>
    <link rel="stylesheet" href="./flexible.js">
    <style>
        * {
            padding: 0;
            margin: 0;
            list-style: none;
        }

        body {
            background-color: #f0f2f5;
        }

        html,
        body {
            padding: 0;
            margin: 0;
            width: 100%;
            height: 100%;
            position: absolute;
            left: 0;
            top: 0;
            overflow: hidden;
            overflow-y: auto;
        }

        .header {
            width: 10rem;
            height: 1.2rem;
            background-color: white;
            position: fixed;
            top: 0;
            left: 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .header-left {
            margin-left: .2667rem;
        }

        .header-right {
            margin-right: .2667rem;
        }

        .img img {
            width: 2.1333rem;
            height: 2.1333rem;
            margin-left: 1.0667rem;
        }

        /* .input{
        border: 1px solid red;
    } */
        .input .input-inner {
            display: inline-block;
            background-color: white;
            width: .8533rem;
            /* height: .5867rem; */
            height: .64rem;
            border-left: 1px solid #e5e5e5;
            border-right: 1px solid #e5e5e5;
            text-align: center;
            /* font-size: .32rem; */

        }

        .increase,
        .decrease {
            width: .6133rem;
            height: .5867rem;
            outline: none;
            font-size: .3733rem;
            border: none;
            background-color: white;
        }

        .right {
            margin-right: .2667rem;
        }

        .right h3 {
            font-size: .32rem;
        }

        .right .color {
            font-size: .32rem;
            color: #666;
        }

        .main {
            margin-top: 1.4667rem
                /* width: 10rem;
    height: 2.4533rem; */

        }

        .main ul li {
            width: 10rem;
            height: 2.4533rem;
            display: flex;
            background-color: white;

        }

        #red {
            font-size: .4267rem;
            color: red;
        }

        .input {
            display: inline-flex;
            width: 2rem;
            height: .64rem;
            border: 1px solid #e5e5e5;


        }

        .flex {
            display: flex;
            justify-content: space-between;
        }

        .main ul {
            /* margin-bottom: 2.6667rem; */
            margin-bottom: .2667rem;
        }

        .main ul li {
            margin-top: .2667rem;
            /* border: 1px solid blue; */
        }

        .radio input {
            width: .48rem;
            height: .9333rem;
            margin-top: .5333rem;
            margin-left: .2667rem;




        }


        .footer {
            width: 10rem;
            height: 1.3333rem;
            background-color: white;
            position: fixed;
            left: 0;
            bottom: 0;

            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .footer .radio1 input {
            width: .48rem;
            height: .9333rem;
            margin-top: .2667rem;

            margin-left: .2667rem;

        }

        .select {
            font-size: .32rem;



        }

        .footer .go {
            width: 3.6rem;
            height: 1.3067rem;
            background-color: red;
            color: white;
            /* float: right; */
            text-align: center;
            /* font-size: .3733rem; */
            display: inline-flex;
            justify-content: center;
            align-items: center;

        }

        .total {
            margin-left: .4rem;
            color: red;
        }

        .icon {
            width: 1em;
            height: 1em;
            vertical-align: -0.15em;
            fill: currentColor;
            overflow: hidden;
        }



        .all {
            width: 10rem;
            /* height: 2.6667rem; */
            height: .9333rem;
            background-color: white;
            margin-bottom: 1.6rem;
            font-size: .32rem;
            line-height: .9333rem;
            text-align: right;

        }

        .digit {
            /* margin-left: .4rem; */
            margin-right: .4rem;
            color: red;
        }

        .kin {
            width: .5333rem;
            height: .5333rem;
            vertical-align: middle;
        }

        .main-top {
            width: 10rem;
            height: 1.0667rem;
            background-color: white;
        }

        .radio2 input {
            width: .48rem;
            height: .9333rem;
            margin-left: .2667rem;
            margin-right: .5333rem;

        }

        .radio2 .ac {
            font-size: .32rem;

        }

        .radio2 {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .box2 span {
            font-size: .32rem;
            margin-right: .2667rem;
        }

        .box1 {
            display: inline-flex;
            align-items: center;
        }
    </style>
</head>

<body>
    <script src="./flexible.js"></script>
    <!-- <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script> -->

    <div class="header">
        <div class="header-left">
            <svg class="icon" aria-hidden="true">
                <use xlink:href="#icon-xiangzuojiantou"></use>
            </svg>
        </div>
        <div class="header-middle">购物车(6)</div>
        <div class="header-right">
            <svg class="icon" aria-hidden="true">
                <use xlink:href="#icon-duanxinxiaoxixinxi
                "></use>
            </svg>
        </div>

    </div>
    <div class="main">
        <div class="main-top">
            <div class="radio2">
                <div class="box1">
                    <input type="checkbox" id="checkAll">

                    <img class="kin" src="./img/icon/icon-kin.png" alt="">
                    <span class="ac">艾畅旗舰店</span>
                </div>


                <div class="box2"> <span>领劵</span> <span>编辑</span></div>

            </div>
        </div>
        <ul>
            <!-- <li>
                    <div class="radio"><input type="radio"></div>
                    <div class="img">
                        <img src="./img/pd/sf-16.jpg"alt="">
                    </div>
                    <div class="right">
                        <h3>【黑卡96折】Apple苹果iPhone 7(A1660)移动联通电信4C手机国内...</h3>
                        <span class="color">重量:3.3kg颜色:标配版</span>
                        <div class="flex">
                            <div id="red">¥100.00</div>
                            <div class="input">
                                <button class="decrease">-</button>
                                <span class="input-inner">1</span>
                                <button class="increase">+</button>
                            </div>
                         </div>
                    </div>

                </li> -->

        </ul>
        <div class="all">本店总计:¥<span class="digit">0.00</span></div>
    </div>


    <div class="footer">
        <div class="radio1">
            <input type="radio">

        </div>
        <div class="footer-middle">
            <span class="select">全选</span>
            <span class="total">合计: <span class="digitall">0.00</span> </span>
        </div>
        <div class="go">
            <span>去结算</span>


        </div>
    </div>


    <script>
        const list = [
            {
                id: 1,
                url: "./img/pd/sf-16.jpg",
                count: 1,
                isChecked: false,
                price: 100

            },
            {
                id: 2,
                url: "./img/pd/sf-15.jpg",
                count: 3,
                isChecked: true,
                price: 100.00
            },
            {
                id: 3,
                url: "./img/pd/sf-14.jpg",
                count: 3,
                isChecked: false,
                price: 100.00
            },
            {
                id: 4,
                url: "./img/pd/sf-8.jpg",
                count: 3,
                isChecked: false,
                price: 100.00
            },
            {
                id: 5,
                url: "./img/pd/sf-9.jpg",
                count: 3,
                isChecked: false,
                price: 100.00
            },
            {
                id: 6,
                url: "./img/pd/sf-10.jpg",
                count: 3,
                isChecked: false,
                price: 100.00
            },
            {
                id: 7,
                url: "./img/pd/sf-11.jpg",
                count: 3,
                isChecked: false,
                price: 100.00
            },
            {
                id: 8,
                url: "./img/pd/sf-12.jpg",
                count: 3,
                isChecked: true,
                price: 100.00
            }


        ]


        const checkAll = document.querySelector('#checkAll')

        function render() {
            let str = ''
            for (let i = 0; i < list.length; i++) {
                str += `

            <li data-id="${i}">
                    <div class="radio">
                        <input id="cks" type="checkbox"${list[i].isChecked ? 'checked' : ''} ></div>
                    <div class="img">
                        <img src="${list[i].url}"alt="">
                    </div>
                    <div class="right">
                        <h3>【黑卡96折】Apple苹果iPhone 7(A1660)移动联通电信4C手机国内...</h3>
                        <span class="color">重量:3.3kg颜色:标配版</span>
                        <div class="flex">
                            <div id="red">¥${list[i].price}</div>
                            <div class="input">
                                <button class="decrease">-</button>
                                <span class="input-inner">${list[i].count}</span>
                                <button class="increase">+</button>
                            </div>
                         </div>
                    </div>

                </li>

            `
            }

            checkAll.checked = list.every(ele => ele.isChecked === true)
            //被勾选组成的数组
            const newArr = list.filter(item => item.isChecked)
            //计算总价
            const totalPrice = newArr.reduce((prev, item) =>
                prev += item.count * item.price
                , 0)
            document.querySelector('.all .digit').innerHTML = totalPrice.toFixed(2)
            document.querySelector('.total .digitall').innerHTML = totalPrice.toFixed(2)

            document.querySelector('ul').innerHTML = str

        }
        render()



        const ul = document.querySelector('.main ul')
        ul.addEventListener('click', function (e) {
            //加
            if (e.target.className === 'increase') {
                const idx = e.target.parentNode.parentNode.parentNode.parentNode.dataset.id
                list[idx].count++
                render()
            }
            //减
            if (e.target.className === 'decrease') {
                const idx = e.target.parentNode.parentNode.parentNode.parentNode.dataset.id
                list[idx].count--
                if (list[idx].count <= 1) {
                    list[idx].count = 1
                }
                render()
            }
            //多选一
            if (e.target.tagName === 'INPUT') {
                const idx = e.target.parentNode.parentNode.dataset.id
                list[idx].isChecked = e.target.checked
                render()

            }
        })

        //单个商店的全选
        const cks = document.querySelectorAll('#cks')
        checkAll.addEventListener('click', function () {
            list.forEach(item => item.isChecked = this.checked)
            render()
        })




    </script>

</body>

</html>

效果图

文章来源:https://blog.csdn.net/m0_56713342/article/details/135160712
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