<head>
<meta http-equiv="Content-Type" content="text/html charset=gb2312" />
<title>修改订单</title>
<style type="text/css">
body{
font-size:13px
line-height:25px
}
table{
border-top: 1px solid #333
border-left: 1px solid #333
width:400px
}
td{
border-right: 1px solid #333
border-bottom: 1px solid #333
text-align:center
}
.title{
font-weight:bold
background-color: #cccccc
}
input text{
width:100px
}
</style>
<script type="text/javascript">
function addRow(){
//行的长度
var rowlength=document.getElementById("order").rows.length
//得到整个表格对象
var order = document.getElementById("order").insertRow(rowlength-1)
order.id=rowlength-1
//插入列
var cel1=order.insertCell(0).innerHTML="游戏光盘"
var cel2=order.insertCell(1).innerHTML="34"
var cel3=order.insertCell(2).innerHTML="¥58.40"
var cel4=order.insertCell(3).innerHTML="<input type=\"button\"value=\"删除\" onclick=\"delRow('"+(rowlength-1)+"')\"/>"+ "<input type=\"button\"value=\"修改\" onclick=\"editRow('"+(rowlength-1)+"')\"/>"
}
function delRow(qwe){
var ewq=document.getElementById(qwe).rowIndex
document.getElementById("order").deleteRow(ewq)
}
function editRow(rowID){
var row=document.getElementById(rowID)
var cel=row.cells
var text=cel[1].innerHTML
cel[1].innerHTML="<input type='text' value='"+text+"' style='width:40px'>"
cel[3].lastChild.value="确定"
cel[3].lastChild.setAttribute("onclick","update('"+rowID+"')")
}
function update(qwe){
var row=document.getElementById(qwe)
var cel=row.cells
var text=cel[1].lastChild.value
cel[1].innerHTML=text
cel[3].lastChild.value="修改"
cel[3].lastChild.setAttribute("onclick","editRow('"+qwe+"')")
}
/*
function add(){
var a = document.getElementById("order").rows.length
var b = document.getElementById("order").insertRow(a-1)
var one1 = b.insertCell(0).innerHTML="123"
}
*/
</script>
</head>
<body>
<table border="0" cellspacing="0" cellpadding="0" id="order">
<tr class="title">
<td>商品名称</td>
<td>数量</td>
<td>价格</td>
<td> *** 作</td>
</tr>
<tr id="1">
<td>防滑真皮休闲鞋</td>
<td>12</td>
<td>¥568.50</td>
<td><input name="rowdel" type="button" value="删除" onclick='delRow("1")' />
<input id="edit1" type="button" value="修改" onclick='editRow("1")' /></td>
</tr>
<tr>
<td colspan="4" style="height:30px">
<input name="addOrder" type="button" value="增加订单" onclick="addRow()" /></td>
</tr>
</table>
</body>
</html>
这个是我原来上学的时候练习的代码，练习的是基础的jsDOM *** 作，不过建议以后用Jquery 比较方便 有什么不懂得可以问我
html中的购物车的增减不能直接传送到后台，可以通过ajax，在js中发送ajax
纯前端的话可以参考下面的
<!DOCTYPE html><html lang="en">
<head>
<meta charset="UTF-8">
<title>cart</title>
<style type="text/css">
body,p,a,input{
margin: 0
padding: 0
font-size: 12px
}
.container{
width: 100%
}
.main{
width: 1000px
height: 500px
margin:100px auto
}
.main .cart-container table{
width: 100%
}
.main .cart-container table tr{
text-align: center
}
.main .cart-container table tr:hover{
background: rgba(128, 128, 128, 0.2)
}
.main .cart-container table .table-header{
height: 30px
background: #d9d9d9
font-size: 1.2em
}
.main .cart-container table .table-header td:first-child{
border-left: solid 4px red
box-sizing: border-box
}
.main .cart-container table tr td:nth-child(1),
.main .cart-container table tr td:nth-child(2){
text-align: left
}
.main .cart-container table tr td:nth-child(2){
width: 52%
}
.main .cart-container table tr td:nth-child(3){
width: 12%
}
.main .cart-container table tr td:nth-child(4){
width: 12%
}
.main .cart-container table tr td:nth-child(5){
width: 12%
}
.main .cart-container table tr td:last-child{
width: 10%
}
.cart-good{
height: 60px
}
.cart-good img{
float: left
margin: 10px
width: 60px
}
.cart-good td p{
margin: 10px 0px
}
/*加、减按钮*/
.cart-good td input[type='button']{
width: 20px
height: 20px
background: #00f300
outline: none
border: none
}
.cart-good td input[type='button']:disabled{
background: grey
}
.cart-good td input[type='button']:first-child{
margin-right: -4px
}
.cart-good td input[type='button']:last-child{
margin-left: -4px
}
.cart-good td input[type='text']{
width: 30px
height: 20px
outline: none
border: none
text-align: center
}
.table-footer{
display: flex
justify-content: space-between
line-height: 40px
}
.table-footer div{
font-size: 1.2em
}
.table-footer div button{
background: red
width: 120px
height: 40px
color: white
}
</style>
</head>
<body>
<div class="container">
<header></header>
<section class="main">
<div class="cart-container">
<table cellspacing="0">
<tr class="table-header">
<td><input type="checkbox" id="chk_alla"></td>
<td>聚美优品发货</td>
<td>聚美价</td>
<td>数量</td>
<td>小计</td>
<td> *** 作</td>
</tr>
<!--<tr class="cart-good">-->
<!--<td><input type="checkbox" id="001"></td>-->
<!--<td>-->
<!--<img src="https://p2.jmstatic.com/product/001/293/1293263_std/1293263_60_60.jpg" alt="">-->
<!--<p>[极速免税]PITTA MASK 口罩3枚入</p>-->
<!--<p>型号：新版防晒款 容量：3枚入</p>-->
<!--</td>-->
<!--<td>89.00</td>-->
<!--<td>-->
<!--<input type="button" value="-">-->
<!--<input type="text" value="1">-->
<!--<input type="button" value="+">-->
<!--</td>-->
<!--<td>89.00</td>-->
<!--<td><a href="#">删除</a></td>-->
<!--</tr>-->
</table>
<div class="table-footer">
<div>
<input type="checkbox" id="chk_allb"> <label for="chk_allb">全选</label>
<span style="margin-left: 20px">继续购物 | 清空选中商品</span>
</div>
<div>
共 <span id="good_count">5</span>件商品 商品应付总额：<span id="goods_total">¥229.00</span>
<button class="btn_menu">去结算</button>
</div>
</div>
</div>
</section>
</div>
<script>
(function () {
var skin_products= [
{
"id":"002",
"title": "Estee Lauder 多效智妍精华霜15ml",
"img_url": "http://p0.jmstatic.com/product/003/565/3565880_std/3565880_350_350.jpg",
"price": 249.0,
"number":6,
"acount": "520",
"ischecked":true
},
{
"id":"004",
"title": "EsteeLauder 肌透修护洁面乳30ml",
"img_url": "http://p4.jmstatic.com/product/003/155/3155764_std/3155764_350_350.jpg",
"price": 49.9,
"number":1,
"acount": "5911",
"ischecked":false
},
{
"id":"008",
"title": "雅诗兰黛无痕持妆粉底液",
"img_url": "http://p3.jmstatic.com/product/003/662/3662318_std/3662318_350_350.jpg",
"price": 69.9,
"number":2,
"acount": "3972",
"ischecked":true
},
{
"id":"0012",
"title": "Estee Lauder 肌初赋活原生液30ml",
"img_url": "http://p4.jmstatic.com/product/003/565/3565914_std/3565914_350_350.jpg",
"price": 159.0,
"number":1,
"acount": "2338"
},
{
"id":"001",
"title": "雅诗兰黛无痕持妆粉底液30ml",
"img_url": "http://p2.jmstatic.com/product/001/648/1648502_std/1648502_350_350.jpg",
"price": 298.0,
"number":4,
"acount": "5071",
"ischecked":false
},
{
"id":"009",
"title": "雅诗兰黛眼部精华霜15ml",
"img_url": "http://p1.jmstatic.com/product/001/049/1049746_std/1049746_350_350.jpg",
"price": 399.0,
"number":1,
"acount": "4022",
"ischecked":false
}
]
// 添加商品
function load() {
var tbody=document.querySelector('.cart-container table tbody')
for(let good of skin_products){
tbody.innerHTML+=` <tr class="cart-good" id="${good.id}">
<td><input type="checkbox" class="good-check" ${good.ischecked?"checked":''}></td>
<td>
<img src="${good.img_url}" alt="">
<p>[极速免税]PITTA MASK 口罩3枚入</p>
<p>型号：新版防晒款 容量：3枚入</p>
</td>
<td>${good.price}</td>
<td>
<input type="button" value="-" ${good.number<=1?"disabled":''}>
<input type="text" value="${good.number}">
<input type="button" value="+">
</td>
<td>${good.price*good.number}</td>
<td><a href="#">删除</a></td>
</tr>`
}
totalAcount()
}
load()
// end all..........
// 1. 为table注册单击事件
var table01=document.querySelector('.cart-container table')
table01.onclick=function (event) {
var node=event.target
if(node.getAttribute('type')=='button'){
// alert(event.target.value)
changeNumber(event)
subtotal(event)
checkedRow(event)
checkedAllRows()
}else if(node.className=='good-check'){
checkedAllRows()
}else if(node.id=='chk_alla'){
var f=event.target.checked
var chks=document.querySelectorAll('.good-check')
for(var ck of chks){
ck.checked=f
}
for(var good of skin_products){
good.ischecked=f
}
}else if(node.nodeName.toLowerCase()=='a'){
var tr=event.target.parentNode.parentNode
for(var i=0i<skin_products.lengthi++){
if(skin_products[i].id==tr.id){
skin_products.splice(i,1)
console.log(skin_products)
}
}
tr.parentNode.removeChild(tr)
}
totalAcount()
}
//单击增加或减少按钮的方法
function changeNumber(event) {
var node=event && event.target
var v=0
if(node.value && node.value=='+'){
// node.previousElementSibling.value=parseInt(node.previousElementSibling.value)+1
node.previousElementSibling.value++
v=node.previousElementSibling.value
node.previousElementSibling.previousElementSibling.disabled=false
}else{
// if(node.value && node.value=='+')
if(node.nextElementSibling.value>1){
node.nextElementSibling.value--
v=node.nextElementSibling.value
if(v==1){
node.disabled=true
}
}
}
// 存储商品数量
var id=node.parentNode.parentNode.id
for(var good of skin_products){
if(id==good.id){
good.number=v
}
}
}
// 每个商品小计的方法
function subtotal(event) {
var node=event && event.target
// var id=node.parentNode.parentNode.id
// for(var g of skin_products){
// if(g.id==id){
// alert(g.price)
// }
// }
// var price=；
var price=node.parentNode.previousElementSibling.innerText
var num=node.parentNode.children[1].value
node.parentNode.nextElementSibling.innerText=(num*price).toFixed(2)
}
// 检验该商品是否选中
function checkedRow(event) {
event.target.parentNode.parentNode.firstElementChild.firstElementChild.checked=true
// event.target.parentNode.parentNode.cells[0].firstElementChild.checked=true
// var tbody=event.target.parentNode.parentNode.parentNode
// event.target.parentNode.parentNode.parentNode.rows[3].cells[0].firstElementChild.checked=true
}
// 检查是否全选
function checkedAllRows() {
var chks=document.querySelectorAll('.good-check')
var flag=true
for(var ck of chks){
if(!ck.checked){
flag=false
break
}
}
document.querySelector('#chk_alla').checked=flag
}
// 统计商品总量和总价格
function totalAcount() {
var total=0
var total_price=0
var chks=document.querySelectorAll('.good-check')
for(var ck of chks){
if(ck.checked){
id=ck.parentNode.parentNode.id
for(var good of skin_products){
if(id==good.id){
total+=~~good.number
total_price=total_price+(good.number*good.price)
good.ischecked=true
}
}
}
}
document.querySelector('#good_count').innerText=total
document.querySelector('#goods_total').innerText=total_price
}
})()
</script>
</body>
</html>
hot 或new在导航上会动这种是PS里先设计GIF动态图片，然后再安装到店铺中，京东现在导航是设计1920x40px，你就按这个尺寸在PS里设计好动态样式的图片，然后加上超链接，你如果要全屏代码再用疯狂的美工京东装修助手生成个店招上使用的全屏代码，这样用小一点分辨率的电脑看就会居中了。希望给帮到你~欢迎分享，转载请注明来源：内存溢出
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