html
原生JS实现购物车结算功能代码
商品 单价 数量 小计 操作 Casio/卡西欧 EX-TR350
5999.88 + 5999.88 删除 Canon/佳能 PowerShot SX50 HS
3888.50 + 3888.50 删除 Sony/索尼 DSC-WX300
1428.50 + 1428.50 删除 Fujifilm/富士 instax mini 25
640.60 + 640.60 删除
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 += ' [0].src + ')
取消选择 ' } 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：
牛汽配微信商城版
