html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>原生JS实现购物车结算功能代码</title> <link rel="stylesheet" href="css/style.css"/> <script type="text/javascript" src="js/demo.js"></script> </head> <body> <div class="catbox"> <table id="cartTable"> <thead> <tr> <th><label> <input class="check-all check" type="checkbox"/> 全选</label></th> <th>商品</th> <th>单价</th> <th>数量</th> <th>小计</th> <th>操作</th> </tr> </thead> <tbody> <tr> <td class="checkbox"><input class="check-one check" type="checkbox"/></td> <td class="goods"><img src="images/1.jpg" alt=""/><span>Casio/卡西欧 EX-TR350</span></td> <td class="price">5999.88</td> <td class="count"><span class="reduce"></span> <input class="count-input" type="text" value="1"/> <span class="add">+</span></td> <td class="subtotal">5999.88</td> <td class="operation"><span class="delete">删除</span></td> </tr> <tr> <td class="checkbox"><input class="check-one check" type="checkbox"/></td> <td class="goods"><img src="images/2.jpg" alt=""/><span>Canon/佳能 PowerShot SX50 HS</span></td> <td class="price">3888.50</td> <td class="count"><span class="reduce"></span> <input class="count-input" type="text" value="1"/> <span class="add">+</span></td> <td class="subtotal">3888.50</td> <td class="operation"><span class="delete">删除</span></td> </tr> <tr> <td class="checkbox"><input class="check-one check" type="checkbox"/></td> <td class="goods"><img src="images/3.jpg" alt=""/><span>Sony/索尼 DSC-WX300</span></td> <td class="price">1428.50</td> <td class="count"><span class="reduce"></span> <input class="count-input" type="text" value="1"/> <span class="add">+</span></td> <td class="subtotal">1428.50</td> <td class="operation"><span class="delete">删除</span></td> </tr> <tr> <td class="checkbox"><input class="check-one check" type="checkbox"/></td> <td class="goods"><img src="images/4.jpg" alt=""/><span>Fujifilm/富士 instax mini 25</span></td> <td class="price">640.60</td> <td class="count"><span class="reduce"></span> <input class="count-input" type="text" value="1"/> <span class="add">+</span></td> <td class="subtotal">640.60</td> <td class="operation"><span class="delete">删除</span></td> </tr> </tbody> </table> <div class="foot" id="foot"> <label class="fl select-all"><input type="checkbox" class="check-all check"/> 全选</label> <a class="fl delete" id="deleteAll" href="javascript:;">删除</a> <div class="fr closing" onclick="getTotal();">结 算</div> <input type="hidden" id="cartTotalPrice" /> <div class="fr total">合计：￥<span id="priceTotal">0.00</span></div> <div class="fr selected" id="selected">已选商品<span id="selectedTotal">0</span>件<span class="arrow up">︽</span><span class="arrow down">︾</span></div> <div class="selected-view"> <div id="selectedViewList" class="clearfix"> <div><img src="images/1.jpg"><span>取消选择</span></div> </div> <span class="arrow">◆<span>◆</span></span> </div> </div> </div> </body> </html>
js:
window.onload = function () { if (!document.getElementsByClassName) { document.getElementsByClassName = function (cls) { var ret = []; var els = document.getElementsByTagName('*'); for (var i = 0, len = els.length; i < len; i++) { if (els[i].className.indexOf(cls + ' ') >=0 || els[i].className.indexOf(' ' + cls + ' ') >=0 || els[i].className.indexOf(' ' + cls) >=0) { ret.push(els[i]); } } return ret; } } var table = document.getElementById('cartTable'); // 购物车表格 var selectInputs = document.getElementsByClassName('check'); // 所有勾选框 var checkAllInputs = document.getElementsByClassName('check-all') // 全选框 var tr = table.children[1].rows; //行 var selectedTotal = document.getElementById('selectedTotal'); //已选商品数目容器 var priceTotal = document.getElementById('priceTotal'); //总计 var deleteAll = document.getElementById('deleteAll'); // 删除全部按钮 var selectedViewList = document.getElementById('selectedViewList'); //浮层已选商品列表容器 var selected = document.getElementById('selected'); //已选商品 var foot = document.getElementById('foot'); // 更新总数和总价格，已选浮层 function getTotal() { var seleted = 0; var price = 0; var HTMLstr = ''; for (var i = 0, len = tr.length; i < len; i++) { if (tr[i].getElementsByTagName('input')[0].checked) { tr[i].className = 'on'; seleted += parseInt(tr[i].getElementsByTagName('input')[1].value); price += parseFloat(tr[i].cells[4].innerHTML); HTMLstr += '<div><img src="' + tr[i].getElementsByTagName('img')[0].src + '"><span class="del" index="' + i + '">取消选择</span></div>' } else { tr[i].className = ''; } } selectedTotal.innerHTML = seleted; priceTotal.innerHTML = price.toFixed(2); selectedViewList.innerHTML = HTMLstr; if (seleted == 0) { foot.className = 'foot'; } } // 计算单行价格 function getSubtotal(tr) { var cells = tr.cells; var price = cells[2]; //单价 var subtotal = cells[4]; //小计td var countInput = tr.getElementsByTagName('input')[1]; //数目input var span = tr.getElementsByTagName('span')[1]; //-号 //写入HTML subtotal.innerHTML = (parseInt(countInput.value) * parseFloat(price.innerHTML)).toFixed(2); //如果数目只有一个，把-号去掉 if (countInput.value == 1) { span.innerHTML = ''; }else{ span.innerHTML = '-'; } } // 点击选择框 for(var i = 0; i < selectInputs.length; i++ ){ selectInputs[i].onclick = function () { if (this.className.indexOf('check-all') >= 0) { //如果是全选，则吧所有的选择框选中 for (var j = 0; j < selectInputs.length; j++) { selectInputs[j].checked = this.checked; } } if (!this.checked) { //只要有一个未勾选，则取消全选框的选中状态 for (var i = 0; i < checkAllInputs.length; i++) { checkAllInputs[i].checked = false; } } getTotal();//选完更新总计 } } // 显示已选商品弹层 selected.onclick = function () { if (selectedTotal.innerHTML != 0) { foot.className = (foot.className == 'foot' ? 'foot show' : 'foot'); } } //已选商品弹层中的取消选择按钮 selectedViewList.onclick = function (e) { var e = e || window.event; var el = e.srcElement; if (el.className=='del') { var input = tr[el.getAttribute('index')].getElementsByTagName('input')[0] input.checked = false; input.onclick(); } } //为每行元素添加事件 for (var i = 0; i < tr.length; i++) { //将点击事件绑定到tr元素 tr[i].onclick = function (e) { var e = e || window.event; var el = e.target || e.srcElement; //通过事件对象的target属性获取触发元素 var cls = el.className; //触发元素的class var countInout = this.getElementsByTagName('input')[1]; // 数目input var value = parseInt(countInout.value); //数目 //通过判断触发元素的class确定用户点击了哪个元素 switch (cls) { case 'add': //点击了加号 countInout.value = value + 1; getSubtotal(this); break; case 'reduce': //点击了减号 if (value > 1) { countInout.value = value - 1; getSubtotal(this); } break; case 'delete': //点击了删除 var conf = confirm('确定删除此商品吗？'); if (conf) { this.parentNode.removeChild(this); } break; } getTotal(); } // 给数目输入框绑定keyup事件 tr[i].getElementsByTagName('input')[1].onkeyup = function () { var val = parseInt(this.value); if (isNaN(val) || val <= 0) { val = 1; } if (this.value != val) { this.value = val; } getSubtotal(this.parentNode.parentNode); //更新小计 getTotal(); //更新总数 } } // 点击全部删除 deleteAll.onclick = function () { if (selectedTotal.innerHTML != 0) { var con = confirm('确定删除所选商品吗？'); //弹出确认框 if (con) { for (var i = 0; i < tr.length; i++) { // 如果被选中，就删除相应的行 if (tr[i].getElementsByTagName('input')[0].checked) { tr[i].parentNode.removeChild(tr[i]); // 删除相应节点 i--; //回退下标位置 } } } } else { alert('请选择商品！'); } getTotal(); //更新总数 } // 默认全选 checkAllInputs[0].checked = true; checkAllInputs[0].onclick(); }
css:
@charset "utf-8"; *{margin:0;padding:0;list-style-type:none;} a{color:#666;text-decoration:none;} table{border-collapse:collapse;border-spacing:0;border:0;} body{color:#666;font:12px/180% Arial, Helvetica, sans-serif, "新宋体";} clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden} .clearfix{display:inline-table} *html .clearfix{height:1%} .clearfix{display:block} *+html .clearfix{min-height:1%} .fl{float:left;} .fr{float:right;} /*素材家园 - www.sucaijiayuan.com*/ .catbox{width:940px;margin:100px auto;} .catbox table{text-align:center;width:100%;} .catbox table th,.catbox table td{border:1px solid #CADEFF;} .catbox table th{background:#e2f2ff;border-top:3px solid #a7cbff;height:30px;} .catbox table td{padding:10px;color:#444;} .catbox table tbody tr:hover{background:RGB(238,246,255);} .checkbox{width:60px;} .check-all{ vertical-align:middle;} .goods{width:300px;} .goods span{width:180px;margin-top:20px;text-align:left;float:left;} .goods img{width:100px;height:80px;margin-right:10px;float:left;} .price{width:130px;} .count{width:90px;} .count .add, .count input, .count .reduce{float:left;margin-right:-1px;position:relative;z-index:0;} .count .add, .count .reduce{height:23px;width:17px;border:1px solid #e5e5e5;background:#f0f0f0;text-align:center;line-height:23px;color:#444;} .count .add:hover, .count .reduce:hover{color:#f50;z-index:3;border-color:#f60;cursor:pointer;} .count input{width:50px;height:15px;line-height:15px;border:1px solid #aaa;color:#343434;text-align:center;padding:4px 0;background-color:#fff;z-index:2;} .subtotal{width:150px;color:red;font-weight:bold;} .operation span:hover,a:hover{cursor:pointer;color:red;text-decoration:underline;} .foot{margin-top:0px;color:#666;height:48px;border:1px solid #c8c8c8;border-top:0;background-color:#eaeaea;background-image:linear-gradient(RGB(241,241,241),RGB(226,226,226));position:relative;z-index:8;} .foot div, .foot a{line-height:48px;height:48px;} .foot .select-all{width:80px;height:48px;line-height:48px;color:#666;text-align:center;} .foot .delete{padding-left:10px;} .foot .closing{border-left:1px solid #c8c8c8;width:103px;text-align:center;color:#666;font-weight:bold;cursor:pointer;background-image:linear-gradient(RGB(241,241,241),RGB(226,226,226));} .foot .closing:hover{background-image:linear-gradient(RGB(226,226,226),RGB(241,241,241));color:#333;} .foot .total{margin:0 20px;cursor:pointer;} .foot #priceTotal, .foot #selectedTotal{color:red;font-family:"Microsoft Yahei";font-weight:bold;} .foot .selected{cursor:pointer;} .foot .selected .arrow{position:relative;top:-3px;margin-left:3px;} .foot .selected .down{position:relative;top:3px;display:none;} .show .selected .down{display:inline;} .show .selected .up{display:none;} .foot .selected:hover .arrow{color:red;} .foot .selected-view{width:938px;border:1px solid #c8c8c8;position:absolute;height:auto;background:#ffffff;z-index:9;bottom:48px;left:-1px;display:none;} .show .selected-view{display:block;} .foot .selected-view div{height:auto;} .foot .selected-view .arrow{font-size:16px;line-height:100%;color:#c8c8c8;position:absolute;right:330px;bottom:-9px;} .foot .selected-view .arrow span{color:#ffffff;position:absolute;left:0px;bottom:1px;} #selectedViewList{padding:10px 20px 10px 20px;} #selectedViewList div{display:inline-block;position:relative;width:100px;height:80px;border:1px solid #ccc;margin:10px;float:left;} #selectedViewList div img{width:100px;height:80px;margin-right:10px;float:left;} #selectedViewList div span{display:none;color:#ffffff;font-size:12px;position:absolute;top:0px;right:0px;width:60px;height:18px;line-height:18px;text-align:center;background:#000;cursor:pointer;} #selectedViewList div:hover span{display:block;}
zepto版本：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>牛汽配微信商城版 </title> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <meta name="apple-touch-fullscreen" content="yes"> <meta name="apple-itunes-app" content="app-id=979472604"> <meta name="format-detection" content="telephone=no"> <meta name="x5-fullscreen" content="true"> <meta http-equiv="Expires" content="-1"> <meta http-equiv="Cache-Control" content="no-cache"> <meta http-equiv="Pragma" content="no-cache"> <meta name="author" content="m.sopell.com"> <link rel="stylesheet" href="/h5/style/sprite.css"> <link rel="stylesheet" href="/h5/style/weixin.css"> <script> var dpr, rem, scale; var docEl = document.documentElement; var metaEl = document.querySelector('meta[name="viewport"]'); dpr = window.devicePixelRatio || 1; function browser() { var u = navigator.userAgent; return { isWeiXin: u.match(/MicroMessenger/), mobile: !!u.match(/AppleWebKit.*Mobile.*/), ios: !!u.match(/(i[^;]+;( U;)? CPU.+Mac OS X/), android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1 } } var b = browser(); if (b.mobile) { rem = docEl.clientWidth * dpr / 10; } else { rem = 54; } scale = 1 / dpr; // 设置viewport，进行缩放，达到高清效果 metaEl.setAttribute('content', 'width=device-width, initial-scale=' + scale + ',maximum-scale=' + scale + ', minimum-scale=' + scale + ',user-scalable=no'); // 设置data-dpr属性，留作的css hack之用 docEl.setAttribute('data-dpr', dpr); docEl.style.fontSize = rem + 'px'; </script> </head> <body> <div class="view"> <div class="content"> <!-- 中间主内容区域--> <div class="cart-wrap"> <div class="productsListWrap cartListWrap"> <ul class="productsList cartList" id="cartTable"> <!-- 正常商品 --> <li> <div class="items" price="1600.50" subtotal="1600.50"> <div class="cart-check-wrapper"> <input class="check-one check icon-selected" type="checkbox" /> </div> <div class="product-img"> <a href=""> <img src="../images/product1.jpg" alt="" width="100%" height="100%"> </a> </div> <div class="product-desc cart-desc"> <dl> <dt class="product-name"> <a href="">固特异 轮胎 225/50R17 98Y</a> </dt> <dd class="product-car">205/55R16 V 91</dd> <dd class="product-prices cart-prices">￥1060.50</dd> <div class="cart-opt"> <span class="quantity-decrease" href="javascript:void();">-</span> <input type="text" size="4" value="1" name="num" class="quantity" readonly="readonly"> <span class="quantity-increase" href="javascript:void();">+</span> </div> </dl> </div> </div> </li> <!-- 失效可删除商品 --> <li> <div class="items"> <div class="cart-check-wrapper"> <input class="check-one check disabled" disabled type="checkbox" /> </div> <div class="product-img"> <a href=""> <img src="../images/product1.jpg" alt="" width="100%" height="100%"> </a> </div> <div class="product-desc cart-desc"> <dl> <dt class="product-name deleted"> <a href="">固特异 轮胎 225/50R17 98Y</a> </dt> <dd class="product-car">205/55R16 V 91</dd> <dd class="product-prices cart-prices cart-overdue">商品已失效</dd> <span class="cart-wastebin">删除</span> </dl> </div> </div> </li> </ul> </div> </div> </div> </div> <!-- 底部购物车 --> <div class="cart-fixed"> <div class="cart-total-bar"> <div class="cart-check-wrapper"> <input class="check-all check icon-selected" type="checkbox" /> <span class="all-text">全选</span> </div> <div class="cart-info"> <div class="cart-info-hj"> <span class="hj">合计：</span> <span class="hj-price" id="priceTotal">0.00</span> </div> </div> </div> <div class="cart-bar"> <div class="cart-bar-back"> <a href="" class="ios icon-back1"></a> </div> <div class="cart-bar-list"> <a href="" class="red-color" id="add_cart"> <span>结算</span> </a> </div> </div> </div> <script src="/h5/js/zepto.min.js"></script> <script src="/h5/js/popup.js"></script> <script type="text/javascript"> $(function() { var table = $('#cartTable'); // 购物车表格 var selectInputs = $('.check'); // 所有勾选框 var checkAllInputs = $('.check-all'); // 全选框 var tr = table.children(); //行 var priceTotal = $('#priceTotal'); //总计 //更新总数和总价格 function getTotal() { var price = 0; tr.each(function(index) { if ($(this).find('.check').is(':checked')) { $(this).addClass('on'); price += parseFloat($(this).find('.items').attr('subtotal')); } else { $(this).attr('class', ''); } }); priceTotal.text(price.toFixed(2)); } // 计算单行价格 function getSubtotal(tr) { var item = tr.find('.items'); var price = tr.find('.items').attr('price'); //单价 var subtotal = tr.find('.items').attr('subtotal'); //小计td var countInput = tr.find('.quantity').val(); //小计td //写入HTML subtotal = (parseInt(countInput) * parseFloat(price)).toFixed(2); item.attr('subtotal', subtotal) //console.log(item.attr('subtotal')); } // 点击选择框 selectInputs.each(function() { this.onclick = function() { if ($(this).hasClass('check-all')) { //如果是全选，则吧所有的选择框选中 for (var j = 0; j < selectInputs.length; j++) { if (!selectInputs[j].disabled) { selectInputs[j].checked = this.checked; } } } if (!this.checked) { // 要有一个未勾选，则取消全选框的选中状态 for (var i = 0; i < checkAllInputs.length; i++) { checkAllInputs[i].checked = false; } } getTotal(); //选完更新总计 }; }); //为每行元素添加事件 tr.each(function(index) { $(this).on('click', function(e) { var el = e.target || e.srcElement; // 过事件对象的target属性获取触发元素 var cls = el.className; //触发元素的class var countInout = $(this).find('.quantity'); // 数目input var value = parseInt(countInout.val()); // 数目 //通过判断触发元素的class确定用户点击了哪个元素 switch (cls) { case 'quantity-increase': //点击了加号 countInout.val(value + 1); getSubtotal($(this)); break; case 'quantity-decrease': //点击了减号 if (value > 1) { countInout.val(value - 1); getSubtotal($(this)); } break; case 'cart-wastebin': //点击了删除 var _this = this; $('body').popup({ message: '确认删除', id: 'pop-2', hideTitle: true, onOk: function() { _this.parentNode.removeChild(_this); } }); } getTotal(); }); }); checkAllInputs[0].checked = true; checkAllInputs[0].onclick(); }); </script> </body> </html>