javascript购物车案例
今天在这里给大家分享一个购物车案例
以某药品为例，如有侵权，还请于小编联系
1.css代码
<style>
* {
margin: 0;
padding: 0;
font-family: "楷体";
list-style: none;
color: #666;
text-decoration: none;
font-size: 20px;
}
body {
background: #f5f5f5;
height: 100%;
}
.header {
font-size: 12px;
border-bottom: 2px solid #ff6700;
background: #fff;
color: #b0b0b0;
position: relative;
z-index: 20;
height: 100px;
}
.header .container {
position: relative;
width: 1226px;
margin-right: auto;
margin-left: auto;
}
.header .container .header-logo {
width: 93px;
margin-top: 26px;
}
.logo {
text-align: center;
font-size: 40px;
background-color: #ffffff;
}
.header-title {
float: left;
margin-top: 26px;
font-size: 12px;
}
.topbar-info {
margin-top: 30px;
line-height: 40px;
}
.link {
padding: 0 5px;
color: #757575;
text-decoration: none;
}
.hid {
overflow: hidden;
}
.left {
float: left;
}
.box_head {
position: relative;
margin: 0;
height: 50px;
font-size: 30px;
font-weight: 400;
color: #757575;
border-top: 1px solid #e0e0e0;
}
.box_head span {
position: absolute;
top: -20px;
left: 372px;
height: 40px;
width: 482px;
line-height: 40px;
text-align: center;
display: block;
background-color: #f5f5f5;
font-size: 30px;
}
#box {
width: 1240px;
margin: 20px auto;
}
#box ul {
margin-right: -14px;
overflow: hidden;
}
#box li {
width: 234px;
float: left;
margin-right: 14px;
padding: 24px 0 20px;
background: #FFF;
text-align: center;
position: relative;
cursor: pointer;
margin-bottom: 14px;
}
.pro_img {
width: 150px;
height: 150px;
margin: 0 auto 18px;
}
.pro_name {
display: block;
text-overflow: ellipsis;
white-space: nowrap;
overflow: hidden;
font-weight: 400;
}
.pro_name a {
color: #333;
}
.pro_price {
color: #ff6700;
margin: 10px;
}
.pro_rank {
color: #757575;
margin: 10px;
}
#box li:hover .add_btn {
display: block;
}
#box li:hover .pro_rank {
opacity: 0;
}
#box li .add_btn:hover {
background-color: #f60;
color: white;
}
.add_btn {
height: 22px;
position: absolute;
width: 122px;
bottom: 28px;
left: 50%;
margin-left: -61px;
line-height: 22px;
display: none;
color: #F60;
font-size: 12px;
border: 1px solid #f60;
}
.car {
width: 1240px;
margin: 20px auto;
background: #FFF;
}
.car .check {
width: 50px;
}
.car .check i {
color: #fff;
display: inline-block;
width: 18px;
height: 18px;
line-height: 18px;
border: 1px solid #e0e0e0;
margin-left: 24px;
background-color: #fff;
font-size: 16px;
text-align: center;
vertical-align: middle;
position: relative;
top: -1px;
cursor: pointer;
font-family: "iconfont";
}
.i_acity {
border-color: #ff6700 !important;
background-color: #ff6700 !important;
}
.car .img {
width: 190px;
}
.car .img img {
display: block;
width: 80px;
height: 80px;
margin: 3px auto;
}
.car .name {
width: 300px;
}
.car .name span {
line-height: 1;
margin-top: 8px;
margin-bottom: 8px;
font-size: 18px;
font-weight: normal;
text-overflow: ellipsis;
white-space: nowrap;
overflow: hidden;
}
.car .price {
width: 144px;
text-align: right;
padding-right: 84px;
}
.car .price span {
color: #ff6700;
font-size: 16px;
}
.car .number {
width: 150px;
}
.car .subtotal {
width: 130px;
}
.car .ctrl {
width: 105px;
padding-right: 25px;
text-align: center;
}
.car .ctrl a {
font-size: 20px;
cursor: pointer;
display: block;
width: 26px;
height: 26px;
margin: 30px auto;
line-height: 26px;
}
.car .ctrl a:hover {
color: #FFF;
background: #ff6700;
border-radius: 50%;
}
.head_row {
height: 70px;
line-height: 70px;
}
.head_row,
.row {
border-bottom: solid 1px #e0e0e0;
}
.row {
height: 86px;
line-height: 86px;
padding: 15px 0;
margin: 0px;
}
#sum_area {
width: 1240px;
height: 60px;
background: white;
margin: 20px auto;
}
#sum_area #pay {
width: 250px;
height: 60px;
text-align: center;
float: right;
line-height: 60px;
font-size: 19px;
background: #0e7ec8;
color: white;
}
#sum_area #pay_amout {
width: 250px;
height: 60px;
text-align: center;
float: right;
line-height: 60px;
font-size: 16px;
color: #FF4B00;
}
#sum_area #pay_amout #price_num {
width: 100px;
height: 60px;
font-size: 25px;
color: #FF4B00;
/* float: left;*/
}
.item_count_i {
height: 85px;
width: 10%;
/*border: 1px solid black;*/
float: left;
margin-right: 25px;
}
.num_count {
width: 150px;
height: 40px;
border: 1.2px solid #E0E0E0;
float: right;
margin-top: 21px;
}
.count_i {
width: 30%;
height: 40px;
line-height: 40px;
float: left;
text-align: center;
font-size: 21px;
color: #747474;
}
.count_i:hover {
width: 30%;
height: 40px;
line-height: 40px;
float: left;
text-align: center;
font-size: 21px;
color: #747474;
background: #E0E0E0;
cursor: pointer;
}
.c_num {
width: 40%;
height: 40px;
line-height: 40px;
float: left;
text-align: center;
font-size: 16px;
color: #747474;
}
.count_d {
width: 30%;
height: 40px;
line-height: 40px;
float: left;
text-align: center;
font-size: 25px;
color: #747474;
}
.count_d:hover {
width: 30%;
height: 40px;
line-height: 40px;
float: left;
text-align: center;
font-size: 25px;
color: #747474;
background: #E0E0E0;
cursor: pointer;
}
.i_acity2 {
border-color: #ffaa7f !important;
background-color: #ffaa00 !important;
}
/* 广告 */
#ad {
//设置边框和颜色
border: 2px solid mediumturquoise;
position: absolute; //使用绝对布局
//设置位置
top: 5px;
right: 10px;
transition: 1s;
//设置下滑时间
}
#gy{
text-align: center;
font-size: 50px;
font-family: "楷体";
}
</style>
2.html代码
<body>
<div class="header">
<div class="container">
<div class="header-logo">
<p class="logo ir" href="" title="药房">药房</p>
</div>
<div class="header-title" id="J_miniHeaderTitle">
<h2 style="font-size: 30px;">我的购物车</h2>
</div>
<div class="topbar-info" id="J_userInfo">
</div>
</div>
<div id="car" class="car">
<div class="head_row hid">
<div class="check left"> <i onclick="checkAll()">√</i></div>
<div class="img left"> 全选</div>
<div class="name left">商品名称</div>
<div class="price left">单价</div>
<div class="number left">数量</div>
<div class="subtotal left">小计</div>
<div class="ctrl left">操作</div>
</div>
</div>
<div id="sum_area">
<div id="del">
</div>
<div id="pay"><span>去结算</span></div>
<div id="pay_amout">合计：<span id="price_num">0</span>元</div>
</div>
<div id="ad">
<table border="0" cellspacing="" cellpadding="">
<tr>
<td align="right">全场一折起<button onclick="ad.style.display='none'" id="btn">X</button></td>
</tr>
<tr>
<td colspan="2"><img src="img/广告.png" width="150px" height="200px" id="m1">
</td>
</tr>
</table>
</div>
<!-- // -->
<div id="box">
<div id="gy">
国药准字 康健民身
</div>
<ul>
</ul>
</div>
</body>
3.JavaScript代码
<script>
window.onload = function() {
var aData = [{
"imgUrl": "img/999感冒灵.jpg",
"proName": " 999感冒灵 ",
"proPrice": "9.9",
"proComm": "1"
},
{
"imgUrl": "img/桉柠蒎肠溶胶囊.jpg",
"proName": " 桉柠蒎肠溶胶囊 ",
"proPrice": "38.9",
"proComm": "9.7"
},
{
"imgUrl": "img/补脑丸.jpg",
"proName": " 补脑丸 ",
"proPrice": "65",
"proComm": "1.3"
},
{
"imgUrl": "img/黄连上清片.jpg",
"proName": " 黄连上清片 ",
"proPrice": "15",
"proComm": "1.1"
},
{
"imgUrl": "img/布洛芬胶囊.jpg",
"proName": "布洛芬胶囊",
"proPrice": "20",
"proComm": "7.3"
},
{
"imgUrl": "img/非那雄胺片.jpg",
"proName": " 非那雄胺片",
"proPrice": "99",
"proComm": "3.3"
},
{
"imgUrl": "img/他达拉菲片.jpg",
"proName": " 他达拉菲片",
"proPrice": "99",
"proComm": "1.2"
},
{
"imgUrl": "img/枸橼酸西地那非片.jpg",
"proName": "枸橼酸西地那非片",
"proPrice": "190",
"proComm": "3.6"
},
{
"imgUrl": "img/复方百部止咳颗粒.jpg",
"proName": " 复方百部止咳颗粒 ",
"proPrice": "20",
"proComm": "4.3"
},
{
"imgUrl": "img/维生素E.jpg",
"proName": " 维生素E ",
"proPrice": "199",
"proComm": "7.2"
}
];
var oBox = document.getElementById("box");
var oCar = document.getElementById("car");
var oUl = document.getElementsByTagName("ul")[0];
for (var i = 0; i < aData.length; i++) {
var oLi = document.createElement("li");
var data = aData[i];
oLi.innerHTML += '
+ data["imgUrl"] +
'" width="150" height="150">';
oLi.innerHTML += ''
+ data["proName"] + '';
oLi.innerHTML += ''
+ data["proPrice"] + '元';
oLi.innerHTML += ''
+ data["proComm"] + '万人好评';
oLi.innerHTML += '加入购物车';
oUl.appendChild(oLi);
}
var aBtn = getClass(oBox, "add_btn"); //获取box下的所有添加购物车按钮
var number = 0; //初始化商品数量
for (var i = 0; i < aBtn.length; i++) {
number++;
aBtn[i].index = i;
aBtn[i].onclick = function() {
var oDiv = document.createElement("div");
var data = aData[this.index];
oDiv.className = "row hid";
oDiv.innerHTML +=
' √';
oDiv.innerHTML += '+ data["imgUrl"] +
'" width="80" height="80">';
oDiv.innerHTML += '' + data["proName"] + '';
oDiv.innerHTML += '' + data["proPrice"] + '元';
oDiv.innerHTML +=
' -1+ '
oDiv.innerHTML += '' + data["proPrice"] + '元'
oDiv.innerHTML += '';
oCar.appendChild(oDiv);
var flag = true;
var check = oDiv.firstChild.getElementsByTagName("i")[0];
check.onclick = function() {
// console.log(check.className);
if (check.className == "i_check i_acity") {
check.classList.remove("i_acity");
} else {
check.classList.add("i_acity");
}
getAmount();
}
var delBtn = oDiv.lastChild.getElementsByTagName("a")[0];
delBtn.onclick = function() {
var result = confirm("确定删除吗?");
if (result) {
oCar.removeChild(oDiv);
number--;
getAmount();
}
}
var i_btn = document.getElementsByClassName("count_i");
for (var k = 0; k < i_btn.length; k++) {
i_btn[k].onclick = function() {
bt = this;
//获取小计节点
at = this.parentElement.parentElement.nextElementSibling;
//获取单价节点
pt = this.parentElement.parentElement.previousElementSibling;
//获取数量值
node = bt.parentNode.childNodes[1];
// console.log(node);
num = node.innerText;
num = parseFloat(num);
num++;
node.innerText = num;
//获取单价
price = pt.innerText;
price = price.substring(0, price.length - 1);
//计算小计值
at.innerText = (price * num).toFixed(2) + "元";
//计算总计值
getAmount();
}
}
//获取所有的数量减号按钮
var d_btn = document.getElementsByClassName("count_d");
for (k = 0; k < i_btn.length; k++) {
d_btn[k].onclick = function() {
bt = this;
//获取小计节点
at = this.parentElement.parentElement.nextElementSibling;
//获取单价节点
pt = this.parentElement.parentElement.previousElementSibling;
//获取c_num节点
node = bt.parentNode.childNodes[1];
num = node.innerText;
num = parseFloat(num);
if (num > 1) {
num--;
}
node.innerText = num;
//获取单价
price = pt.innerText;
price = price.substring(0, price.length - 1);
//计算小计值
at.innerText = (price * num) + "元";
//计算总计值
getAmount();
}
}
delBtn.onclick = function() {
var result = confirm("确定删除吗?");
if (result) {
oCar.removeChild(oDiv);
number--;
getAmount();
}
}
}
}
}
function getClass(oBox, tagname) {
var aTag = oBox.getElementsByTagName("*");
var aBox = [];
for (var i = 0; i < aTag.length; i++) {
if (aTag[i].className == tagname) {
aBox.push(aTag[i]);
}
}
return aBox;
}
var index = false;
function checkAll() {
var choose = document.getElementById("car").getElementsByTagName("i");
// console.log(choose);
if (choose.length != 1) {
for (i = 1; i < choose.length; i++) {
if (!index) {
choose[0].classList.add("i_acity2")
choose[i].classList.add("i_acity");
} else {
choose[i].classList.remove("i_acity");
choose[0].classList.remove("i_acity2")
}
}
index = !index;
}
getAmount();
}
//进行价格合计
function getAmount() {
// console.log(ys);
ns = document.getElementsByClassName("i_acity");
// console.log(ns);
sum = 0;
//选中框
document.getElementById("price_num").innerText = sum;
for (y = 0; y < ns.length; y++) {
//小计
amount_info = ns[y].parentElement.parentElement.lastElementChild.previousElementSibling;
num = parseFloat(amount_info.innerText);
sum += num;
document.getElementById("price_num").innerText = sum.toFixed(2);
}
}
//窗口的滑动事件
window.onscroll = () => {
//获取到窗口滚动的距离 scrollTop
ad.style.top = 40 + document.documentElement.scrollTop + "px"
}
</script>
好了，以上就是药品购物车案例的全部代码了，如果有看不懂的，感兴趣的，不感兴趣的都可以给小编点点关注，有问题可以私信小编。