效果：
1.點擊全選按鈕可以全選，再點擊就全不選
2.點擊數量 ‘ + ' ‘ - ' 可以自動計算。并且合計保持更新。當數量大于1時‘ - '出現。小于等于1時‘ - '消失
3.點擊刪除可以實現刪除功能。
4.點擊全選旁的刪除按鈕可以全部刪除。
5.選好商品后點擊已選商品，可以顯示選中的商品
6.選中的商品可以取消選擇。
<!DOCTYPE html><html><head> <meta charset="UTF-8"> <title>購物車</title></head><style type="text/css">* { margin: 0; padding: 0;}a { color: #666; text-decoration: none;}body { padding: 20px; color: #666;}.fl{ float: left;}.fr { float: right;}table { border-collapse: collapse; border-spacing: 0; border: 0; text-align: center; width: 937px;}th, td { border: 1px solid #CADEFF;}th { background: #e2f2ff; border-top: 3px solid #a7cbff; height: 30px;}td { padding: 10px; color: #444;}tbody tr:hover { background: RGB(238,246,255);}.checkbox { width: 60px;}.goods { width: 300px;}.goods span { width: 180px; margin-top: 20px; text-align: left; 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 { width: 80px;}.operation span:hover, a:hover { cursor: pointer; color: red; text-decoration: underline;}img { width: 100px; height: 80px; /*border: 1px solid #ccc;*/ margin-right: 10px; float: left;}.foot { width: 935px; margin-top: 10px; color: #666; height: 48px; border: 1px solid #c8c8c8; 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: 100px; height: 48px; line-height: 48px; padding-left: 5px; color: #666;}.foot .closing { border-left: 1px solid #c8c8c8; width: 100px; text-align: center; color: #000; font-weight: bold; background: RGB(238,238,238); cursor: pointer;}.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: 935px; 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: 20px; margin-bottom: -20px;}#selectedViewList div{ display: inline-block; position: relative; width: 100px; height: 80px; border: 1px solid #ccc; margin: 10px;}#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: RGBA(0,0,0,.5); cursor: pointer;}#selectedViewList div:hover span { display: block;}</style><body><table id="cartTable"> <thead> <tr> <th><label><input class="check-all check" type="checkbox"/> 全選</label></th> <th>商品</th> <th>單價</th> <th>數量</th> <th>小計</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="http://cdn.attach.qdfuns.com/notes/pics/201612/21/075704loo2mdzuux5123gu.jpg.editor.jpg" <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">刪除</span></td> </tr> <tr> <td class="checkbox"><input class="check-one check" type="checkbox"/></td> <td class="goods"><img src="http://cdn.attach.qdfuns.com/notes/pics/201612/21/075704m26zvv6e52sjczee.jpg.editor.jpg" <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">刪除</span></td> </tr> <tr> <td class="checkbox"><input class="check-one check" type="checkbox"/></td> <td class="goods"><img src="http://cdn.attach.qdfuns.com/notes/pics/201612/21/075704etdabo2fpppdplsa.jpg.editor.jpg" <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">刪除</span></td> </tr> <tr> <td class="checkbox"><input class="check-one check" type="checkbox"/></td> <td class="goods"><img src="http://cdn.attach.qdfuns.com/notes/pics/201612/21/075823wdtw1pdvf3wbwd8b.jpg.editor.jpg" <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">刪除</span></td> </tr> </tbody></table><div class="foot" id="foot"> <label class="fl select-all"><input type="checkbox" class="check-all check"/> 全選</label> <a class="fl delete" id="deleteAll" href="javascript:;">刪除</a> <div class="fr closing">結 算</div> <div class="fr total">合計：￥<span id="priceTotal">0.00</span></div> <div class="fr selected" id="selected">已選商品 <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>取消選擇</span></div>--> </div> <span class="arrow">◆<span>◆</span></span> </div></div><script>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 === cls || 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 cartTable = document.getElementById('cartTable'); var tr = cartTable.children[1].rows; var checkInputs = document.getElementsByClassName('check'); var checkAllInputs = document.getElementsByClassName('check-all'); var selectedTotal = document.getElementById('selectedTotal'); var priceTotal = document.getElementById('priceTotal'); var selected = document.getElementById('selected'); var foot = document.getElementById('foot'); var selectedViewList = document.getElementById('selectedViewList'); var deleteAll = document.getElementById('deleteAll'); //計算 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 + '">取消選擇</span></div>' } else { tr[i].className = ''; } } selectedTotal.innerHTML = seleted; priceTotal.innerHTML = price.toFixed(2); selectedViewList.innerHTML = HTMLstr; if (seleted == 0) { foot.className = 'foot'; } } //小計 function getSubTotal(tr) { var tds = tr.cells; var price = parseFloat(tds[2].innerHTML); var count = parseInt(tr.getElementsByTagName('input')[1].value); var SubTotal = parseFloat(price * count); tds[4].innerHTML = SubTotal.toFixed(2); } for (var i = 0 , len = checkInputs.length; i < len; i++) { checkInputs[i].onclick = function () { if (this.className === 'check-all check') { for (var j = 0; j < checkInputs.length; j++) { checkInputs[j].checked = this.checked; } } if (this.checked == false) { for (var k = 0; k < checkAllInputs.length; k++) { checkAllInputs[k].checked = false; } } getTotal(); } } selected.onclick = function () { if (foot.className == 'foot') { if (selectedTotal.innerHTML != 0) { foot.className = 'foot show'; } } else { foot.className = 'foot'; } } selectedViewList.onclick = function (e) { e = e || window.event; var el = e.srcElement; if (el.className == 'del') { var index = el.getAttribute('index'); var input = tr[index].getElementsByTagName('input')[0]; input.checked = false; input.onclick(); } } for (var i = 0; i < tr.length; i++) { tr[i].onclick = function (e) { e = e || window.event; var el = e.srcElement; var cls = el.className; var input = this.getElementsByTagName('input')[1]; var val = parseInt(input.value); var reduce = this.getElementsByTagName('span')[1]; switch (cls) { case 'add': input.value = val + 1; reduce.innerHTML = '-'; getSubTotal(this); break; case 'reduce': if (val > 1) { input.value = val - 1; } if (input.value <= 1) { reduce.innerHTML = ''; } getSubTotal(this); break; case 'delete': var conf = confirm('確定要刪除嗎？'); if (conf) { this.parentNode.removeChild(this); } break default : break; } getTotal(); } tr[i].getElementsByTagName('input')[1].onkeyup = function () { var val = parseInt(this.value); var tr = this.parentNode.parentNode var reduce = tr.getElementsByTagName('span')[1]; if (isNaN(val) || val < 1) { val = 1; } this.value = val; if (val <= 1) { reduce.innerHTML = ''; } else { reduce.innerHTML = '-'; } getSubTotal(tr); getTotal(); } } deleteAll.onclick = function () { if (selectedTotal.innerHTML != '0') { var conf = confirm('確定刪除嗎？'); if (conf) { for (var i = 0; i < tr.length; i++) { var input = tr[i].getElementsByTagName('input')[0]; if (input.checked) { tr[i].parentNode.removeChild(tr[i]); i--; } } } } } checkAllInputs[0].checked = true; checkAllInputs[0].onclick();}</script></body></html>以上就是本文的全部內容，希望本文的內容對大家的學習或者工作能帶來一定的幫助，同時也希望多多支持VeVb武林網！
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