1. Introduction to jQuery
jQuery is a fast and concise JavaScript framework. It is another excellent JavaScript code (framework) after Prototype. It was released by John Resig in January 2006 . The purpose of jQuery design is "write Less, Do More", which advocates writing less code and doing more things. It encapsulates the functional codes commonly used in JavaScript, provides a simple JavaScript design pattern , and optimizes HTML document operations, event processing, animation design and Ajax interaction. The core features of jQuery can be summarized as follows: it has a unique chain syntax and a short and clear multi-functional interface; it has efficient and flexible CSS selectors , and can extend CSS selectors; it has a convenient plug-in extension mechanism and rich plug-ins and jQuery is compatible with all major browsers.
2. Project introduction
2.1 Form a shopping page
The main knowledge used includes HTML, css, JavaScript, jQuery, etc. The design of this project is best developed on the basis of existing htmi+css+js knowledge. I mainly want to practice jQuery knowledge.
2.1.1 html code
The operating environment is vs, and the specific code is as follows:
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>我的购物车-品优购</title>
<meta name="description"
content="品优购JD.COM-专业的综合网上购物商城,销售家电、数码通讯、电脑、家居百货、服装服饰、母婴、图书、食品等数万个品牌优质商品.便捷、诚信的服务，为您提供愉悦的网上购物体验!" />
<meta name="Keywords" content="网上购物,网上商城,手机,笔记本,电脑,MP3,CD,VCD,DV,相机,数码,配件,手表,存储卡,品优购" />
<!-- 引入css 初始化的css 文件 -->
<link rel="stylesheet" href="css/base.css">
<!-- 引入公共样式的css 文件 -->
<link rel="stylesheet" href="css/common.css">
<!-- 引入car css -->
<link rel="stylesheet" href="css/car.css">
<!-- 先引入jquery -->
<script src="jquery.min.js"></script>
<!-- 在引入我们自己的js文件 -->
<script src="js/car.js"></script>
</head>
<body>
<!-- 顶部快捷导航start -->
<div class="shortcut">
<div class="w">
<div class="fl">
<ul>
<li>品优购欢迎您！ </li>
<li>
<a href="#">请登录</a>
<a href="#" class="style-red">免费注册</a>
</li>
</ul>
</div>
<div class="fr">
<ul>
<li><a href="#">我的订单</a></li>
<li class="spacer"></li>
<li>
<a href="#">我的品优购</a>
<i class="icomoon"></i>
</li>
<li class="spacer"></li>
<li><a href="#">品优购会员</a></li>
<li class="spacer"></li>
<li><a href="#">企业采购</a></li>
<li class="spacer"></li>
<li><a href="#">关注品优购</a> <i class="icomoon"></i></li>
<li class="spacer"></li>
<li><a href="#">客户服务</a> <i class="icomoon"></i></li>
<li class="spacer"></li>
<li><a href="#">网站导航</a> <i class="icomoon"></i></li>
</ul>
</div>
</div>
</div>
<!-- 顶部快捷导航end -->
<div class="car-header">
<div class="w">
<div class="car-logo">
<img src="img/logo.png" alt=""> <b>购物车</b>
</div>
</div>
</div>
</div>
<div class="c-container">
<div class="w">
<div class="cart-filter-bar">
<em>全部商品</em>
</div>
<!-- 购物车主要核心区域 -->
<div class="cart-warp">
<!-- 头部全选模块 -->
<div class="cart-thead">
<div class="t-checkbox">
<input type="checkbox" name="" id="" class="checkall"> 全选
</div>
<div class="t-goods">商品</div>
<div class="t-price">单价</div>
<div class="t-num">数量</div>
<div class="t-sum">小计</div>
<div class="t-action">操作</div>
</div>
<!-- 商品详细模块 -->
<div class="cart-item-list">
<div class="cart-item check-cart-item">
<div class="p-checkbox">
<input type="checkbox" name="" id="" checked class="j-checkbox">
</div>
<div class="p-goods">
<div class="p-img">
<img src="upload/p1.jpg" alt="">
</div>
<div class="p-msg">【5本26.8元】经典儿童文学彩图青少版八十天环游地球中学生语文教学大纲</div>
</div>
<div class="p-price">￥12.60</div>
<div class="p-num">
<div class="quantity-form">
<a href="javascript:;" class="decrement">-</a>
<input type="text" class="itxt" value="1">
<a href="javascript:;" class="increment">+</a>
</div>
</div>
<div class="p-sum">￥12.60</div>
<div class="p-action"><a href="javascript:;">删除</a></div>
</div>
<div class="cart-item">
<div class="p-checkbox">
<input type="checkbox" name="" id="" class="j-checkbox">
</div>
<div class="p-goods">
<div class="p-img">
<img src="upload/p2.jpg" alt="">
</div>
<div class="p-msg">【2000张贴纸】贴纸书 3-6岁 贴画儿童 贴画书全套12册 贴画 贴纸儿童 汽</div>
</div>
<div class="p-price">￥24.80</div>
<div class="p-num">
<div class="quantity-form">
<a href="javascript:;" class="decrement">-</a>
<input type="text" class="itxt" value="1">
<a href="javascript:;" class="increment">+</a>
</div>
</div>
<div class="p-sum">￥24.80</div>
<div class="p-action"><a href="javascript:;">删除</a></div>
</div>
<div class="cart-item">
<div class="p-checkbox">
<input type="checkbox" name="" id="" class="j-checkbox">
</div>
<div class="p-goods">
<div class="p-img">
<img src="upload/p3.jpg" alt="">
</div>
<div class="p-msg">唐诗三百首+成语故事全2册 一年级课外书 精装注音儿童版 小学生二三年级课外阅读书籍</div>
</div>
<div class="p-price">￥29.80</div>
<div class="p-num">
<div class="quantity-form">
<a href="javascript:;" class="decrement">-</a>
<input type="text" class="itxt" value="1">
<a href="javascript:;" class="increment">+</a>
</div>
</div>
<div class="p-sum">￥29.80</div>
<div class="p-action"><a href="javascript:;">删除</a></div>
</div>
</div>
<!-- 结算模块 -->
<div class="cart-floatbar">
<div class="select-all">
<input type="checkbox" name="" id="" class="checkall">全选
</div>
<div class="operation">
<a href="javascript:;" class="remove-batch"> 删除选中的商品</a>
<a href="javascript:;" class="clear-all">清理购物车</a>
</div>
<div class="toolbar-right">
<div class="amount-sum">已经选<em>1</em>件商品</div>
<div class="price-sum">总价： <em>￥12.60</em></div>
<div class="btn-area">去结算</div>
</div>
</div>
</div>
</div>
</div>
<!-- footer start -->
<div class="footer">
<div class="w">
<!-- mod_service -->
<div class="mod_service">
<ul>
<li>
<i class="mod-service-icon mod_service_zheng"></i>
<div class="mod_service_tit">
<h5>正品保障</h5>
<p>正品保障，提供发票</p>
</div>
</li>
<li>
<i class="mod-service-icon mod_service_kuai"></i>
<div class="mod_service_tit">
<h5>正品保障</h5>
<p>正品保障，提供发票</p>
</div>
</li>
<li>
<i class="mod-service-icon mod_service_bao"></i>
<div class="mod_service_tit">
<h5>正品保障</h5>
<p>正品保障，提供发票</p>
</div>
</li>
<li>
<i class="mod-service-icon mod_service_bao"></i>
<div class="mod_service_tit">
<h5>正品保障</h5>
<p>正品保障，提供发票</p>
</div>
</li>
<li>
<i class="mod-service-icon mod_service_bao"></i>
<div class="mod_service_tit">
<h5>正品保障</h5>
<p>正品保障，提供发票</p>
</div>
</li>
</ul>
</div>
<!-- mod_help -->
<div class="mod_help">
<dl class="mod_help_item">
<dt>购物指南</dt>
<dd> <a href="#">购物流程 </a></dd>
<dd> <a href="#">会员介绍 </a></dd>
<dd> <a href="#">生活旅行/团购 </a></dd>
<dd> <a href="#">常见问题 </a></dd>
<dd> <a href="#">大家电 </a></dd>
<dd> <a href="#">联系客服 </a></dd>
</dl>
<dl class="mod_help_item">
<dt>购物指南</dt>
<dd> <a href="#">购物流程 </a></dd>
<dd> <a href="#">会员介绍 </a></dd>
<dd> <a href="#">生活旅行/团购 </a></dd>
<dd> <a href="#">常见问题 </a></dd>
<dd> <a href="#">大家电 </a></dd>
<dd> <a href="#">联系客服 </a></dd>
</dl>
<dl class="mod_help_item">
<dt>购物指南</dt>
<dd> <a href="#">购物流程 </a></dd>
<dd> <a href="#">会员介绍 </a></dd>
<dd> <a href="#">生活旅行/团购 </a></dd>
<dd> <a href="#">常见问题 </a></dd>
<dd> <a href="#">大家电 </a></dd>
<dd> <a href="#">联系客服 </a></dd>
</dl>
<dl class="mod_help_item">
<dt>购物指南</dt>
<dd> <a href="#">购物流程 </a></dd>
<dd> <a href="#">会员介绍 </a></dd>
<dd> <a href="#">生活旅行/团购 </a></dd>
<dd> <a href="#">常见问题 </a></dd>
<dd> <a href="#">大家电 </a></dd>
<dd> <a href="#">联系客服 </a></dd>
</dl>
<dl class="mod_help_item">
<dt>购物指南</dt>
<dd> <a href="#">购物流程 </a></dd>
<dd> <a href="#">会员介绍 </a></dd>
<dd> <a href="#">生活旅行/团购 </a></dd>
<dd> <a href="#">常见问题 </a></dd>
<dd> <a href="#">大家电 </a></dd>
<dd> <a href="#">联系客服 </a></dd>
</dl>
<dl class="mod_help_item mod_help_app">
<dt>帮助中心</dt>
<dd>
<img src="upload/erweima.png" alt="">
<p>品优购客户端</p>
</dd>
</dl>
</div>
<!-- mod_copyright -->
<div class="mod_copyright">
<p class="mod_copyright_links">
关于我们 | 联系我们 | 联系客服 | 商家入驻 | 营销中心 | 手机品优购 | 友情链接 | 销售联盟 | 品优购社区 | 品优购公益 | English Site | Contact U
</p>
<p class="mod_copyright_info">
地址：北京市昌平区建材城西路金燕龙办公楼一层 邮编：100096 电话：400-618-4000 传真：010-82935100 邮箱: zhanghj+itcast.cn <br>
京ICP备08001421号京公网安备110108007702
</p>
</div>
</div>
</div>
<!-- footer end -->
</body>
</html>The above codes are all basic, just to fill in the basic content of the shopping page, but the structure and layout of the page have not been set yet, so the shopping page design and arrangement will be done with css next.
2.1.2 Introduction to css code
The css knowledge points we use here mainly include category selectors, label selectors, ID selectors, descendant selectors, child selectors, pseudo-class selectors, general selectors, group selectors, structural pseudo-class selectors wait.
For css learning, you can find information online, such as MDN document learning, the link is as follows:
https://developer.mozilla.org/zh-CN/
Since a lot of selectors are needed to facilitate understanding of the code, we set the CSS selectors separately:
（1）base.css
/*清除元素默认的内外边距 */
* {
margin: 0;
padding: 0
}
/*让所有斜体 不倾斜*/
em,
i {
font-style: normal;
}
/*去掉列表前面的小点*/
li {
list-style: none;
}
/*图片没有边框 去掉图片底侧的空白缝隙*/
img {
border: 0; /*ie6*/
vertical-align: middle;
}
/*让button 按钮 变成小手*/
button {
cursor: pointer;
}
/*取消链接的下划线*/
a {
color: #666;
text-decoration: none;
}
a:hover {
color: #e33333;
}
button,
input {
font-family: 'Microsoft YaHei', 'Heiti SC', tahoma, arial, 'Hiragino Sans GB', \\5B8B\4F53, sans-serif;
/*取消轮廓线 蓝色的*/
outline: none;
}
body {
background-color: #fff;
font: 12px/1.5 'Microsoft YaHei', 'Heiti SC', tahoma, arial, 'Hiragino Sans GB', \\5B8B\4F53, sans-serif;
color: #666
}
.hide,
.none {
display: none;
}
/*清除浮动*/
.clearfix:after {
visibility: hidden;
clear: both;
display: block;
content: ".";
height: 0
}
.clearfix {
*zoom: 1
}
（2）car.css
.car-header {
padding: 20px 0;
}
.car-logo img {
vertical-align: middle;
}
.car-logo b {
font-size: 20px;
margin-top: 20px;
margin-left: 10px;
}
.cart-filter-bar {
font-size: 16px;
color: #E2231A;
font-weight: 700;
}
.cart-filter-bar em {
padding: 5px;
border-bottom: 1px solid #E2231A;
}
.cart-thead {
height: 32px;
line-height: 32px;
margin: 5px 0 10px;
padding: 5px 0;
background: #f3f3f3;
border: 1px solid #e9e9e9;
border-top: 0;
position: relative;
}
.cart-thead>div,
.cart-item>div {
float: left;
}
.t-checkbox,
.p-checkbox {
height: 18px;
line-height: 18px;
padding-top: 7px;
width: 122px;
padding-left: 11px;
}
.t-goods {
width: 400px;
}
.t-price {
width: 120px;
padding-right: 40px;
text-align: right;
}
.t-num {
width: 150px;
text-align: center;
}
.t-sum {
width: 100px;
text-align: right;
}
.t-action {
width: 130px;
text-align: right;
}
.cart-item {
height: 160px;
border-style: solid;
border-width: 2px 1px 1px;
border-color: #aaa #f1f1f1 #f1f1f1;
background: #fff;
padding-top: 14px;
margin: 15px 0;
}
.check-cart-item {
background: #fff4e8;
}
.p-checkbox {
width: 50px;
}
.p-goods {
margin-top: 8px;
width: 565px;
}
.p-img {
float: left;
border: 1px solid #ccc;
padding: 5px;
}
.p-msg {
float: left;
width: 210px;
margin: 0 10px;
}
.p-price {
width: 110px;
}
.quantity-form {
width: 80px;
height: 22px;
}
.p-num {
width: 170px;
}
.decrement,
.increment {
float: left;
border: 1px solid #cacbcb;
height: 18px;
line-height: 18px;
padding: 1px 0;
width: 16px;
text-align: center;
color: #666;
margin: 0;
background: #fff;
margin-left: -1px;
}
.itxt {
float: left;
border: 1px solid #cacbcb;
width: 42px;
height: 18px;
line-height: 18px;
text-align: center;
padding: 1px;
margin: 0;
margin-left: -1px;
font-size: 12px;
font-family: verdana;
color: #333;
-webkit-appearance: none;
}
.p-sum {
font-weight: 700;
width: 145px;
}
/* 结算模块 */
.cart-floatbar {
height: 50px;
border: 1px solid #f0f0f0;
background: #fff;
position: relative;
margin-bottom: 50px;
line-height: 50px;
}
.select-all {
float: left;
height: 18px;
line-height: 18px;
padding: 16px 0 16px 9px;
white-space: nowrap;
}
.select-all input {
vertical-align: middle;
display: inline-block;
margin-right: 5px;
}
.operation {
float: left;
width: 200px;
margin-left: 40px;
}
.clear-all {
font-weight: 700;
margin: 0 20px;
}
.toolbar-right {
float: right;
}
.amount-sum {
float: left;
}
.amount-sum em {
font-weight: 700;
color: #E2231A;
padding: 0 3px;
}
.price-sum {
float: left;
margin: 0 15px;
}
.price-sum em {
font-size: 16px;
color: #E2231A;
font-weight: 700;
}
.btn-area {
font-weight: 700;
width: 94px;
height: 52px;
line-height: 52px;
color: #fff;
text-align: center;
font-size: 18px;
font-family: "Microsoft YaHei";
background: #e54346;
overflow: hidden;
}
.check-all-aa {
background-color: #fff4e8;
}
.j-check-aa {
background-color: #fff4e8;
}（3） commom.css
/*公共样式*/
.fl {
float: left;
}
.fr {
float: right;
}
@font-face {
font-family: 'icomoon';
src: url('../fonts/icomoon.eot?7kkyc2');
src: url('../fonts/icomoon.eot?7kkyc2#iefix') format('embedded-opentype'), url('../fonts/icomoon.ttf?7kkyc2') format('truetype'), url('../fonts/icomoon.woff?7kkyc2') format('woff'), url('../fonts/icomoon.svg?7kkyc2#icomoon') format('svg');
font-weight: normal;
font-style: normal;
}
.fr .icomoon {
font-family: 'icomoon';
font-size: 16px;
line-height: 26px;
}
/*版心*/
.w {
width: 1200px;
margin: 0 auto;
}
.style-red {
color: #c81623;
}
.spacer {
width: 1px;
height: 12px;
background-color: #666;
margin: 9px 12px 0;
}
/*顶部快捷导航*/
.shortcut {
height: 31px;
background-color: #f1f1f1;
line-height: 31px;
}
.shortcut li {
float: left;
}
/*header区域*/
.header {
position: relative;
height: 105px;
}
.logo {
position: absolute;
top: 25px;
left: 0;
width: 175px;
height: 56px;
}
.logo a {
display: block;
/*overflow: hidden;*/
width: 175px;
height: 56px;
background: url(../img/logo.png) no-repeat;
/*text-indent: -999px;*/
font-size: 0;
}
.search {
position: absolute;
top: 25px;
left: 348px;
}
.text {
float: left;
width: 445px;
height: 32px;
border: 2px solid #b1191a;
padding-left: 10px;
color: #ccc;
}
.btn {
float: left;
width: 82px;
height: 36px;
background-color: #b1191a;
border: 0;
font-size: 16px;
color: #fff;
}
.hotwrods {
position: absolute;
top: 65px;
left: 348px;
}
.hotwrods a {
margin: 0 10px;
}
.shopcar {
position: absolute;
top: 25px;
right: 64px;
width: 138px;
height: 34px;
border: 1px solid #dfdfdf;
background-color: #f7f7f7;
line-height: 34px;
text-align: center;
}
.car {
font-family: 'icomoon';
color: #da5555;
}
.arrow {
font-family: 'icomoon';
margin-left: 5px;
}
.count {
position: absolute;
top: -5px;
/*应该是左侧对齐 文字才能往右走显示*/
left: 100px;
background-color: #e60012;
height: 14px;
padding: 0 3px;
line-height: 14px;
color: #fff;
/*border-radius: 左上角 右上角 右下角 左下角;*/
border-radius: 7px 7px 7px 0;
}
/*nav start*/
.nav {
height: 45px;
border-bottom: 2px solid #b1191a;
}
.dropdown {
width: 209px;
height: 45px;
}
.dropdown .dt {
height: 100%;
background-color: #b1191a;
font-size: 16px;
color: #fff;
text-align: center;
line-height: 45px;
}
.dropdown .dd {
height: 465px;
background-color: #c81623;
margin-top: 2px;
}
.menu_item:hover {
background-color: #fff;
}
/*鼠标经过li 里面的 a变颜色*/
.menu_item:hover a {
color: #c81623;
}
.menu_item {
height: 31px;
line-height: 31px;
margin-left: 1px;
padding: 0 10px;
transition: all .5s;
}
.menu_item:hover {
padding-left: 20px;
}
.menu_item a {
font-size: 14px;
color: #fff;
}
.menu_item i {
float: right;
font-family: 'icomoon';
font-size: 18px;
color: #fff;
}
.navitems {
margin-left: 10px;
}
.navitems li {
float: left;
}
.navitems li a {
display: block;
height: 45px;
padding: 0 25px;
line-height: 45px;
font-size: 16px;
}
/*footer 部分*/
.footer {
height: 386px;
background-color: #f5f5f5;
padding-top: 30px;
}
.mod_service {
height: 79px;
border-bottom: 1px solid #ccc;
}
.mod_service li {
float: left;
width: 240px;
height: 79px;
}
.mod-service-icon {
/*浮动的盒子 可以直接给大小的 不需要转换*/
float: left;
width: 50px;
height: 50px;
margin-left: 35px;
background: url(../img/icons.png) no-repeat;
}
.mod_service_zheng {
background-position: -253px -3px;
}
.mod_service_tit {
float: left;
margin-left: 5px;
}
.mod_service_tit h5 {
margin: 5px 0;
}
.mod_service_kuai {
background-position: -255px -54px;
}
.mod_service_bao {
background-position: -257px -105px;
}
.mod_help {
height: 187px;
border-bottom: 1px solid #ccc;
}
.mod_help_item {
float: left;
width: 150px;
padding: 20px 0 0 50px;
}
.mod_help_item dt {
height: 25px;
font-size: 16px;
}
.mod_help_item dd {
height: 22px;
}
.mod_help_app dt,
.mod_help_app p {
padding-left: 15px;
}
.mod_help_app img {
margin: 7px 0;
}
.mod_copyright {
text-align: center;
}
.mod_copyright_links {
margin: 20px 0 15px 0;
}
.mod_copyright_info {
line-height: 18px;
}（4）datail.css
/*详情页的样式文件*/
.de_container {
margin-top: 20px;
}
.crumb_wrap {
height: 25px;
}
.crumb_wrap a {
margin-right: 10px;
}
.preview_wrap {
width: 400px;
height: 590px;
}
.preview_img {
height: 398px;
border: 1px solid #ccc;
}
.preview_list {
position: relative;
height: 60px;
margin-top: 60px;
}
.list_item {
width: 320px;
height: 60px;
margin: 0 auto;
}
.list_item li {
float: left;
width: 56px;
height: 56px;
border: 2px solid transparent;
margin: 0 2px;
}
.list_item li.current {
border-color: #c81623;
}
.arrow_prev,
.arrow_next {
position: absolute;
top: 15px;
width: 22px;
height: 32px;
background-color: purple;
}
.arrow_prev {
left: 0;
background: url(../img/arrow-prev.png) no-repeat;
}
.arrow_next {
right: 0;
background: url(../img/arrow-next.png) no-repeat;
}
.itemInfo_wrap {
width: 718px;
}
.sku_name {
height: 30px;
font-size: 16px;
font-weight: 700;
}
.news {
height: 32px;
color: #e12228;
}
.summary dl {
overflow: hidden;
}
.summary dt,
.summary dd {
float: left;
}
.summary dt {
width: 60px;
padding-left: 10px;
line-height: 36px;
}
.summary_price ,
.summary_promotion {
position: relative;
padding: 10px 0;
background-color: #fee9eb;
}
.price {
font-size: 24px;
color: #e12228;
}
.summary_price a {
color: #c81623;
}
.remark {
position: absolute;
right: 10px;
top: 20px;
}
.summary_promotion {
padding-top: 0;
}
.summary_promotion dd {
width: 450px;
line-height: 36px;
}
.summary_promotion em {
display: inline-block;
width: 40px;
height: 22px;
background-color: #c81623;
text-align: center;
line-height: 22px;
color: #fff;
}
.summary_support dd {
line-height: 36px;
}
.choose_color a {
display: inline-block;
width: 80px;
height: 41px;
background-color: #f7f7f7;
border: 1px solid #ededed;
text-align: center;
line-height: 41px;
}
.summary a.current {
border-color: #c81623;
}
.choose_version {
margin: 10px 0;
}
.choose_version a,
.choose_type a {
display: inline-block;
height: 32px;
padding: 0 12px;
background-color: #f7f7f7;
border: 1px solid #ededed;
text-align: center;
line-height: 32px;
}
.choose_btns {
margin-top: 20px;
}
.choose_amount {
position: relative;
float: left;
width: 50px;
height: 46px;
background-color: pink;
}
.choose_amount input {
width: 33px;
height: 44px;
border: 1px solid #ccc;
text-align: center;
}
.add,
.reduce {
position: absolute;
right: 0;
width: 15px;
height: 22px;
border: 1px solid #ccc;
background-color: #f1f1f1;
text-align: center;
line-height: 22px;
}
.add {
top: 0;
}
.reduce {
bottom: 0;
/*禁止鼠标样式*/
cursor: not-allowed; /* pointer 小手 move 移动 */
}
.addcar {
float: left;
width: 142px;
height: 46px;
background-color: #c81623;
text-align: center;
line-height: 46px;
font-size: 18px;
color: #fff;
margin-left: 10px;
font-weight: 700;
}
.product_detail {
margin-bottom: 50px;
}
.aside {
width: 208px;
border: 1px solid #ccc;
}
.tab_list {
overflow: hidden;
height: 34px;
}
/*把背景颜色 底边框都给 li*/
.tab_list li {
float: left;
background-color: #f1f1f1;
border-bottom: 1px solid #ccc;
height: 33px;
text-align: center;
line-height: 33px;
}
/*鼠标单击 li 变化样式 背景变白色 去掉下边框 文字变颜色*/
.tab_list .current {
background-color: #fff;
border-bottom: 0;
color: red;
}
.first_tab {
width: 104px;
}
.second_tab {
width: 103px;
border-left: 1px solid #ccc;
}
.tab_con {
padding: 0 10px;
}
.tab_con li {
border-bottom: 1px solid #ccc;
}
.tab_con li h5 {
/*超出的文字省略号显示*/
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
font-weight: 400;
}
.aside_price {
font-weight: 700;
margin: 10px 0;
}
.as_addcar {
display: block;
width: 88px;
height: 26px;
border: 1px solid #ccc;
background-color: #f7f7f7;
margin: 10px auto;
text-align: center;
line-height: 26px;
}
.detail {
width: 978px;
}
.detail_tab_list {
height: 39px;
border: 1px solid #ccc;
background-color: #f1f1f1;
}
.detail_tab_list li {
float: left;
height: 39px;
line-height: 39px;
padding: 0 20px;
text-align: center;
cursor: pointer;
}
.detail_tab_list .current {
background-color: #c81623;
color: #fff;
}
.item_info {
padding: 20px 0 0 20px;
}
.item_info li {
line-height: 22px;
}
.more {
float: right;
font-weight: 700;
font-family: 'icomoon';
}
（5）index.css
/*这个文件里面放的是 首页的样式*/
.main {
width: 980px;
height: 455px;
margin-left: 219px;
margin-top: 10px;
}
.focus {
position: relative;
width: 720px;
height: 455px;
background-color: purple;
}
.arrow-l,
.arrow-r {
position: absolute;
top: 50%;
margin-top: -20px;
width: 24px;
height: 40px;
background: rgba(0, 0, 0, .3);
text-align: center;
line-height: 40px;
color: #fff;
font-family: 'icomoon';
font-size: 18px;
}
.arrow-r {
right: 0;
}
.circle {
position: absolute;
bottom: 10px;
left: 50px;
}
.circle li {
float: left;
width: 8px;
height: 8px;
/*background-color: #fff;*/
border: 2px solid rgba(255, 255, 255, 0.5);
margin: 0 3px;
border-radius: 50%;
/*鼠标经过显示小手*/
cursor: pointer;
}
.current {
background-color: #fff;
box-shadow:
}
.newsflash {
width: 250px;
height: 455px;
}
.news {
height: 163px;
border: 1px solid #ccc;
}
.news-hd {
height: 32px;
/*dotted 点线 dashed 虚线*/
border-bottom: 1px dotted #ccc;
padding:0 15px;
font-size: 14px;
line-height: 32px;
}
.news-hd a {
float: right;
font-size: 12px;
font-family: 'icomoon';
}
.news-bd {
padding: 10px 0 0 15px;
}
.news-bd li {
height: 23px;
}
.lifeservice {
overflow: hidden;
height: 208px;
border: 1px solid #ccc;
border-top: none;
}
.lifeservice ul {
width: 252px;
}
.lifeservice li {
position: relative;
float: left;
width: 62px;
height: 70px;
border-right: 1px solid #ccc;
border-bottom: 1px solid #ccc;
}
.lifeservice li a {
display: block;
/* overflow: hidden; 解决i 引起的 外边距塌陷合并的问题*/
overflow: hidden;
height: 100%;
}
.lifeservice li p {
text-align: center;
}
.hot {
position: absolute;
right: 0;
top: 0;
width: 12px;
height: 15px;
background: url(../img/jian.jpg) no-repeat;
}
.service_ico {
display: block;
width: 24px;
height: 24px;
background: url(../img/icons.png) no-repeat;
margin: 10px auto;
}
.service_ico_huafei {
background-position: -17px -16px;
}
.service_ico_feiji {
width: 26px;
background-position: -78px -16px;
}
.bargain {
height: 75px;
margin-top: 5px;
}
/*推荐模块*/
.recommend {
height: 163px;
margin-top: 10px;
}
.recom-hd {
width: 200px;
height: 163px;
background-color: #5c5251;
text-align: center;
}
.recom-hd img {
margin: 30px 0 10px 0;
}
.recom-hd h3 {
font-size: 18px;
color: #fff;
font-weight: normal;
}
.recom-bd {
width: 1000px;
height: 163px;
background-color: #ebebeb;
}
.recom-bd li {
float: left;
width: 249px;
height: 145px;
border-right: 1px solid #ccc;
margin-top: 10px;
}
.recom-bd .last {
border-right: 0;
}
/*floor 楼层区*/
.box-hd {
height: 30px;
border-bottom: 2px solid #c81623;
margin-top: 25px;
}
.box-hd h3 {
float: left;
font-size: 18px;
color: #c81623;
}
.tab-list {
float: right;
line-height: 30px;
}
.tab-list li {
float: left;
}
.tab-list li a {
margin: 0 15px;
}
.box-bd {
height: 360px;
}
.w209 {
width: 209px;
background-color: #f9f9f9;
}
.w329 {
width: 329px;
}
.w219 {
width: 219px;
border-right: 1px solid #ccc;
}
.w220 {
width: 220px;
border-right: 1px solid #ccc;
}
.tab-con li {
float: left;
height: 360px;
}
.tab-con-item {
border-bottom: 1px solid #ccc;
}
.tab-con-list {
overflow: hidden;
margin-bottom: 15px;
}
.tab-con-list li {
width: 86px;
height: 32px;
line-height: 32px;
border-bottom: 1px solid #ccc;
margin-left: 10px;
text-align: center;
}
.box-bd li {
overflow: hidden;
}
.box-bd img {
/*过渡写到本身上， 谁做动画，给谁加*/
transition: all .2s;
}
/*我们鼠标经过图片 往右走 8px*/
.box-bd img:hover {
margin-left: 8px;
}
/*电梯导航*/
.fixedtool {
position: fixed;
top: 100px;
left: 50%;
margin-left: -676px;
width: 66px;
background-color: #fff;
}
.fixedtool li {
height: 32px;
line-height: 32px;
text-align: center;
font-size: 12px;
border-bottom: 1px solid #ccc;
cursor: pointer;
}
.fixedtool .current {
background-color: #c81623;
color: #fff;
}
（6）list.css
/*列表页面的css*/
.sk {
position: absolute;
top: 40px;
left: 185px;
height: 32px;
border-left: 1px solid #b1191a;
padding: 5px 0 0 15px;
}
.sk_list li {
float: left;
line-height: 45px;
margin: 0 30px;
}
.sk_list li a {
font-size: 16px;
color: #000;
font-weight: 700;
}
.sk_list li a:hover {
color: #c81523;
}
.sk_con li {
float: left;
line-height: 45px;
margin: 0 20px;
}
.sk_con li a {
font-size: 14px;
font-weight: 700;
font-family: 'icomoon';
}
/*列表页内容区域?*/
.sk_bd {
margin-top: 25px;
}
.sk_bd ul {
width: 1212px;
}
.sk_goods {
position: relative;
float: left;
width: 288px;
height: 458px;
border: 1px solid transparent;
margin: 0 12px 15px 0;
}
.sk_goods:hover {
border: 1px solid #e12228;
}
.sk_goods_title {
font-size: 14px;
color: #666;
font-weight: normal;
padding: 10px;
}
.sk_goods_price {
padding: 0 10px;
}
.sk_goods_price em {
font-size: 22px;
color: #e60012;
}
.sk_goods_price del {
font-size: 14px;
font-weight: 700;
color: #a4a4a4;
}
.sk_goods_progress {
padding: 0 10px;
}
.bar {
display: inline-block;
width: 130px;
height: 10px;
border: 1px solid #b1191a;
vertical-align: middle;
margin: 0 5px;
border-radius: 5px;
}
.bar_in {
width: 87%;
height: 10px;
background-color: #f24349;
}
.sk_goods_progress em,
.sk_goods_progress i {
color: #f24349;
}
.sk_goods_buy {
position: absolute;
bottom: 0;
width: 100%;
height: 50px;
background-color: #b1191a;
color: #fff;
text-align: center;
line-height: 50px;
font-size: 20px;
}
.page {
margin: 40px 0;
/*里面的文字内容 行内块 行内元素 都可以水平居中对齐*/
text-align: center;
}
.page_num a {
display: inline-block;
width: 36px;
height: 36px;
line-height: 36px;
border: 1px solid #ccc;
background-color: #f7f7f7;
}
.page_num .pn_prev,
.page_num .pn_next {
width: 83px;
}
.page_num .dotted ,
.page_num .current {
border: 1px solid transparent;
background-color: transparent;
}
.page_skip input {
width: 46px;
height: 36px;
border: 1px solid #ccc;
text-align: center;
/*过渡写在本身上 谁做动画，给谁加*/
transition: all 0.3s;
}
/*表单获得焦点后 */
.page_skip input:focus {
width: 88px;
border: 1px solid skyblue;
}
.page_skip button {
width: 54px;
height: 36px;
border: 1px solid #ccc;
background-color: #f7f7f7;
}
（7）register.css
.w {
width: 1200px;
margin: auto;
}
.header {
height: 82px;
border-bottom: 2px solid #b1191a;
}
.logo {
padding-top: 15px;
}
.registerarea {
height: 520px;
border: 1px solid #ccc;
margin-top: 20px;
}
.registerarea h3 {
height: 40px;
border-bottom: 1px solid #ccc;
background-color: #ececec;
padding: 0 10px;
font-weight: 400;
line-height: 40px;
font-size: 18px;
}
.registerarea h3 em {
float: right;
font-size: 14px;
}
.registerarea a {
color: #c81623;
}
.reg_form {
width: 600px;
height: 400px;
margin: 40px auto 0;
}
.reg_form li {
margin-bottom: 15px;
}
.reg_form label {
display: inline-block;
width: 100px;
height: 36px;
line-height: 36px;
text-align: right;
}
.inp {
width: 238px;
height: 34px;
border: 1px solid #ccc;
margin-left: 10px;
}
.error {
color: #df3033;
margin-left: 10px;
}
.error_icon,
.success_icon {
display: inline-block;
width: 20px;
height: 20px;
background: url(../img/error.png) no-repeat;
vertical-align: middle;
margin-top: -2px;
}
.success {
color: #40b83f;
margin-left: 10px;
}
.success_icon {
background-image: url(../img/success.png);
}
.safe {
padding-left: 187px;
color: #b2b2b2;
}
.safe em {
padding: 0 12px;
color: #fff;
}
.ruo {
background-color: #de1111;
}
.zhong {
background-color: #40b83f;
}
.qiang {
background-color: #f79100;
}
.agree {
padding-top: 20px;
padding-left: 100px;
}
.agree input {
vertical-align: middle;
margin-right: 5px;
}
.agree a {
color: #1ba1e6;
}
.over {
width: 200px;
height: 34px;
background-color: #c81623;
margin: 30px 0 0 130px;
border: none;
color: #fff;
font-size: 14px;
}
.footer {
height: 120px;
text-align: center;
}
.links {
margin-top: 20px;
height: 30px;
}
.copyright {
line-height: 20px;
}After the css code is written, we introduce the css code into the head of the html:
<!-- 引入css 初始化的css 文件 -->
<link rel="stylesheet" href="css/base.css">
<!-- 引入公共样式的css 文件 -->
<link rel="stylesheet" href="css/common.css">
<!-- 引入car css -->
<link rel="stylesheet" href="css/car.css">3. The initial formation of the shopping page
Run the above code:
The page viewing link is:
http://127.0.0.1:5500/%E8%B4%AD%E7%89%A9%E8%BD%A6%E6%83%85%E5%86%B5.html
4. Add js code and design some functions
For example: click Select All on the shopping page to select all products and change the color of the row where the shopping cart is located; to delete all selected products and the row where the product is located will disappear automatically; to realize that multiple products can be purchased, And carry out automatic settlement of goods.
4.l First introduce the jQuery library
<!-- 先引入jquery -->
<script src="jquery.min.js"></script>4.2 car.js code
$(function() {
// 1. 全选 全不选功能模块
// 就是把全选按钮（checkall）的状态赋值给 三个小的按钮（j-checkbox）就可以了
// 事件可以使用change
$(".checkall").change(function() {
// console.log($(this).prop("checked"));
$(".j-checkbox, .checkall").prop("checked", $(this).prop("checked"));
if ($(this).prop("checked")) {
// 让所有的商品添加 check-cart-item 类名
$(".cart-item").addClass("check-cart-item");
} else {
// check-cart-item 移除
$(".cart-item").removeClass("check-cart-item");
}
});
// 2. 如果小复选框被选中的个数等于3 就应该把全选按钮选上，否则全选按钮不选。
$(".j-checkbox").change(function() {
// if(被选中的小的复选框的个数 === 3) {
// 就要选中全选按钮
// } else {
// 不要选中全选按钮
// }
// console.log($(".j-checkbox:checked").length);
// $(".j-checkbox").length 这个是所有的小复选框的个数
if ($(".j-checkbox:checked").length === $(".j-checkbox").length) {
$(".checkall").prop("checked", true);
} else {
$(".checkall").prop("checked", false);
}
if ($(this).prop("checked")) {
// 让当前的商品添加 check-cart-item 类名
$(this).parents(".cart-item").addClass("check-cart-item");
} else {
// check-cart-item 移除
$(this).parents(".cart-item").removeClass("check-cart-item");
}
});
// 3. 增减商品数量模块 首先声明一个变量，当我们点击+号（increment），就让这个值++，然后赋值给文本框。
$(".increment").click(function() {
// 得到当前兄弟文本框的值
var n = $(this).siblings(".itxt").val();
// console.log(n);
n++;
$(this).siblings(".itxt").val(n);
// 3. 计算小计模块 根据文本框的值 乘以 当前商品的价格 就是 商品的小计
// 当前商品的价格 p
var p = $(this).parents(".p-num").siblings(".p-price").html();
// console.log(p);
p = p.substr(1);
console.log(p);
var price = (p * n).toFixed(2);
// 小计模块
// toFixed(2) 可以让我们保留2位小数
$(this).parents(".p-num").siblings(".p-sum").html("￥" + price);
getSum();
});
$(".decrement").click(function() {
// 得到当前兄弟文本框的值
var n = $(this).siblings(".itxt").val();
if (n == 1) {
return false;
}
// console.log(n);
n--;
$(this).siblings(".itxt").val(n);
// var p = $(this).parent().parent().siblings(".p-price").html();
// parents(".p-num") 返回指定的祖先元素
var p = $(this).parents(".p-num").siblings(".p-price").html();
// console.log(p);
p = p.substr(1);
console.log(p);
// 小计模块
$(this).parents(".p-num").siblings(".p-sum").html("￥" + (p * n).toFixed(2));
getSum();
});
// 4. 用户修改文本框的值 计算 小计模块
$(".itxt").change(function() {
// 先得到文本框的里面的值 乘以 当前商品的单价
var n = $(this).val();
// 当前商品的单价
var p = $(this).parents(".p-num").siblings(".p-price").html();
// console.log(p);
p = p.substr(1);
$(this).parents(".p-num").siblings(".p-sum").html("￥" + (p * n).toFixed(2));
getSum();
});
// 5. 计算总计和总额模块
getSum();
function getSum() {
var count = 0; // 计算总件数
var money = 0; // 计算总价钱
$(".itxt").each(function(i, ele) {
count += parseInt($(ele).val());
});
$(".amount-sum em").text(count);
$(".p-sum").each(function(i, ele) {
money += parseFloat($(ele).text().substr(1));
});
$(".price-sum em").text("￥" + money.toFixed(2));
}
// 6. 删除商品模块
// (1) 商品后面的删除按钮
$(".p-action a").click(function() {
// 删除的是当前的商品
$(this).parents(".cart-item").remove();
getSum();
});
// (2) 删除选中的商品
$(".remove-batch").click(function() {
// 删除的是小的复选框选中的商品
$(".j-checkbox:checked").parents(".cart-item").remove();
getSum();
});
// (3) 清空购物车 删除全部商品
$(".clear-all").click(function() {
$(".cart-item").remove();
getSum();
})
})Knowledge points related to jQuery:
If you want to learn more about jQuery, you can search for documentation on the Internet by yourself. Since the realization of these functions cannot be dynamically displayed, you can select code verification by yourself if necessary.