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200字范文 > 潮鞋购物网站 html5+css3+js 实现基本的添加购物车 自动计算金额等功能

潮鞋购物网站 html5+css3+js 实现基本的添加购物车 自动计算金额等功能

时间:2023-07-10 09:13:29

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潮鞋购物网站 html5+css3+js 实现基本的添加购物车 自动计算金额等功能

项目展示效果

实现添加购物鞋数量总金额自动变化

实现连接购物车功能

实现在购物车里收藏与删除

下面是购物页面代码

<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>购买精选</title><style type="text/css">body{width: 1350px;height: 100%;}#div0{width: 100%;height: 2100px;}#div1{width: 35%;height: 100px;float: left;}#div2{width: 65%;height: 100px;float: left;}#div2 ul{margin: 40px;}#div2 ul li{float: left;list-style: none;width: 20%;font-size: 20px;color: #789;}#div2 ul li a{text-decoration:none; color: gray;}#div2 ul li:hover{color: black;}#div3{width: 10%;height: 2000px;float: left;}#div4{width: 80%;height: 400px;float: left;}#div4 ul li{width: 20%;list-style: none;float: left;margin: 2%;}#div4 ul li:hover{transform: translate(0,10px);}#div6{width: 80%;height: 400px;float: left;}#div6 ul li{width: 20%;list-style: none;float: left;margin: 2%;}#div6 ul li:hover{transform: translate(0,10px);}#div7{width: 80%;height: 400px;float: left;}#div7 ul li{width: 20%;list-style: none;float: left;margin: 2%;}#div7 ul li:hover{transform: translate(0,10px);}#div8{width: 80%;height: 400px;float: left;}#div8 ul li{width: 20%;list-style: none;float: left;margin: 2%;}#div8 ul li:hover{transform: translate(0,10px);}#div9{width: 80%;height: 400px;float: left;}#div9 ul li{width: 20%;list-style: none;float: left;margin: 2%;}#div9 ul li:hover{transform: translate(0,10px);}#div10{position: fixed;top: 100px;right:10px;width: 50px;height: 400px;background: black;}#div10 ul{padding: 10px;}#div10 ul li{list-style: none;height: 100px;}#div10 ul li img:hover{background: orange;}</style><script type="text/javascript">//减法function minus(index) {//获取当前数量的值var amounts=document.getElementsByName("amount");//得到第一个amount的元素的value属性的值var count=parseInt(amounts[index].value); //数量加1if (count<=1){alert("不能再减了,快没了!!");} else {//得到第一个amount的元素的value属性的值var count=parseInt(amounts[index].value)-1; //数量加1//重新把count的值绑定在数量文本框里amounts[index].value=count;var prices=document.getElementsByName("price");var price=parseFloat(prices[index].value);//乘以Math.pow(10,2)的原因为避免失真var totalMoney=((price*Math.pow(10,2))*count)/Math.pow(10,2);document.getElementById("price"+index).innerHTML="¥:"+totalMoney;}total();}//加法function plus(index) {//获取当前数量的值var amounts=document.getElementsByName("amount");//得到第一个amount的元素的value属性的值var count=parseInt(amounts[index].value)+1; //数量加1//重新把count的值绑定在数量文本框里amounts[index].value=count;//当前操作端口的价格也要重新计算//得到当前端口的单价var prices=document.getElementsByName("price");var price=parseFloat(prices[index].value);//乘以Math.pow(10,2)的原因为避免失真var totalMoney=((price*Math.pow(10,2))*count)/Math.pow(10,2);//把当前价格显示在文本中document.getElementById("price"+index).innerHTML="¥:"+totalMoney;total();}//求总金额function total() {//得到所有的数量var counts=document.getElementsByName("amount");//得到所有的单价var prices=document.getElementsByName("price");var sumMoney=0;for (var i=0;i<counts.length;i++){//乘以Math.pow(10,2)的原因为避免失真sumMoney+=(parseFloat(prices[i].value)*Math.pow(10,2)*parseInt(counts[i].value)/Math.pow(10,2));}//把总金额显示再指定的元素中document.getElementById("totalPrice").innerHTML="¥:"+sumMoney;}//加入收藏function save() {if (confirm("确认要收藏吗?")){alert("收藏成功!");}}//删除function delete1() {if (confirm("确认要删除吗?")) {var del=document.getElementById("first");del.parentNode.removeChild(del);alert("删除成功!!");}}</script></head><body><div id="div0"><a name="gouwu"></a><div id="div1"><img src="images/youxuan.png" width="200px"></div><div id="div2"><ul><li><b><a href="../高贵宝/web-16.1.html#sy">首页</b></li><li><b><a >购买精选</a></b></li><li><b><a href="../高贵宝/web-16.2.html#shequ">社区精选</a></b></li><li><b><a href="../赵江波/商家入驻.html"">商家入驻</a></b></li><li><b><a href="../邓/建议.html#guanyu">关于我们</a></b></li></ul></div><div id="div3"></div><div id="div4"><h2>Jordan</h2><figure><ul><li><img src="images/xie4.jpg" width="150px"><figcaption>Nike/耐克AIR JORDAN 1 男女篮球鞋AJ1黑紫脚趾553558-125紫葡萄</figcaption>¥:<input type="text" name="price" value="1299" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price0">¥:1299</font><br><input type="button" value="+" name="plus" onclick="plus(0)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(0)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie3.jpg" width="150px"><figcaption>Nike/耐克AIR JORDAN 1 MID女子篮球鞋AJ1玫瑰金555112-190中帮</figcaption>¥:<input type="text" name="price" value="1549" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price1">¥:1549</font><br><input type="button" value="+" name="plus" onclick="plus(1)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(1)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie2.jpg" width="150px"><figcaption>Nike/耐克AIR JORDAN 1 男女AJ1薄荷绿3M篮球鞋CQ9828-131 郭艾伦</figcaption>¥:<input type="text" name="price" value="2799" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price2">¥:2799</font><br><input type="button" value="+" name="plus" onclick="plus(2)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(2)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie1.jpg" width="150px"><figcaption>Nike/耐克AIR JORDAN 1 MID女子篮球鞋AJ1糖果鸳鸯554725-083拼色</figcaption>¥:<input type="text" name="price" value="3200" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price3">¥:3200</font><br><input type="button" value="+" name="plus" onclick="plus(3)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(3)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li></ul></figure></div><div id="div6"><h2>Nike</h2><figure><ul><li><img src="images/xie5.jpg" width="150px"><figcaption>Nike耐克官方AIR FORCE 1 MID '男子运动鞋空军一号板鞋传世风尚 </figcaption>¥:<input type="text" name="price" value="721" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price4">¥:721</font><br><input type="button" value="+" name="plus" onclick="plus(4)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(4)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie6.jpg" width="150px"><figcaption>Nike耐克官方NIKE ZOOM FLY 3 男子跑步鞋马拉松缓震回弹 AT8240</figcaption>¥:<input type="text" name="price" value="789" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price5">¥:789</font><br><input type="button" value="+" name="plus" onclick="plus(5)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(5)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie7.jpg" width="150px"><figcaption>Nike耐克官方AIR MAX 270 REACT女子运动鞋休闲鞋气垫鞋DC3276</figcaption>¥:<input type="text" name="price" value="1039" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price6">¥:1039</font><br><input type="button" value="+" name="plus" onclick="plus(6)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(6)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie8.jpg" width="150px"><figcaption>Nike耐克官方FREE RN 5.0 女子跑步鞋运动鞋慢跑鞋CJ0270</figcaption>¥:<input type="text" name="price" value="379" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price7">¥:379</font><br><input type="button" value="+" name="plus" onclick="plus(7)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(7)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li></ul></figure></div><div id="div7"><h2>LI-NING</h2><figure><ul><li><img src="images/xie9.jpg" width="150px"><figcaption>李宁羽毛球鞋男鞋情侣鞋男士鞋子专业防滑低帮运动鞋</figcaption>¥:<input type="text" name="price" value="288" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price8">¥:288</font><br><input type="button" value="+" name="plus" onclick="plus(8)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(8)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie10.jpg" width="150px"><figcaption>李宁旗舰官网男鞋新款全能王鞋子低帮运动鞋</figcaption>¥:<input type="text" name="price" value="208" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price9">¥:208</font><br><input type="button" value="+" name="plus" onclick="plus(9)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(9)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie11.jpg" width="150px"><figcaption>李宁羽毛球鞋女鞋耐磨防滑女士鞋子低帮运动鞋</figcaption>¥:<input type="text" name="price" value="228" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price10">¥:228</font><br><input type="button" value="+" name="plus" onclick="plus(10)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(10)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie12.jpg" width="150px"><figcaption>李宁羽毛球鞋男鞋专业防滑鞋子男士低帮运动羽毛球鞋</figcaption>¥:<input type="text" name="price" value="238" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price11">¥:238</font><br><input type="button" value="+" name="plus" onclick="plus(11)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(11)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li></ul></figure></div><div id="div8"><h2>PUMA</h2><figure><ul><li><img src="images/xie13.jpg" width="150px"><figcaption>PUMA彪马官方新款女子经典休闲鞋 SMASH </figcaption>¥:<input type="text" name="price" value="269" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price12">¥:269</font><br><input type="button" value="+" name="plus" onclick="plus(12)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(12)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie14.jpg" width="150px"><figcaption>PUMA彪马官方 男女同款情侣SEGA联名款休闲鞋 </figcaption>¥:<input type="text" name="price" value="429" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price13">¥:429</font><br><input type="button" value="+" name="plus" onclick="plus(13)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(13)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie15.jpg" width="150px"><figcaption>PUMA彪马官方正品 刘雯同款新款女子复古休闲鞋 </figcaption>¥:<input type="text" name="price" value="809" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price14">¥:809</font><br><input type="button" value="+" name="plus" onclick="plus(14)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(14)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie16.jpg" width="150px"><figcaption>PUMA彪马官方正品 男女同款复古经典德训鞋休闲鞋 </figcaption>¥:<input type="text" name="price" value="197" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price15">¥:197</font><br><input type="button" value="+" name="plus" onclick="plus(15)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(15)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li></ul></figure></div><div id="div9"><h2>VANS</h2><figure><ul><li><img src="images/xie17.jpg" width="150px"><figcaption>【燃冬季】Vans范斯官方黑白棋盘格宽条纹男鞋女鞋低帮板鞋运动鞋</figcaption>¥:<input type="text" name="price" value="463" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price16">¥:463</font><br><input type="button" value="+" name="plus" onclick="plus(16)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(16)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie18.jpg" width="150px"><figcaption>【燃冬季】Vans范斯官方 黑色男鞋女鞋低帮职业滑板鞋</figcaption>¥:<input type="text" name="price" value="660" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price17">¥:660</font><br><input type="button" value="+" name="plus" onclick="plus(17)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(17)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie19.jpg" width="150px"><figcaption>【燃冬季】Vans范斯官方灰色Vans解构小香风男女SK8-Hi高帮板鞋</figcaption>¥:<input type="text" name="price" value="465" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price18">¥:465</font><br><input type="button" value="+" name="plus" onclick="plus(18)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(18)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li><li><img src="images/xie20.jpg" width="150px"><figcaption>【燃冬季】Vans范斯官方 灰色侧边条纹男女Old Skool低帮板鞋</figcaption>¥:<input type="text" name="price" value="423" style="width: 60px;">&nbsp;&nbsp;&nbsp;&nbsp;<font id="price19">¥:423</font><br><input type="button" value="+" name="plus" onclick="plus(19)"><input type="text" style="width: 20px;" name="amount" value="1"><input type="button" value="-" name="minus" onclick="minus(19)"><br><font onclick="save()">移入收藏</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<font onclick="delete1()">删除</font></li></ul></figure></div><div id="div10"><ul><li><a href="../邓/dengru.html#dr"><img src="images/yonghu.png" width="30px"></a></li><li><a href="购物车.html#gouwuche"><img src="images/gouwu.png" width="30px" ></a></li><li><a href="../邓/建议.html#guanyu"><img src="images/lianxi.png" width="30px"></a></li><li><a href="../邓/建议.html#guanyu"><img src="images/shezhi.png" width="30px"></a></li></ul></div></div></body></html>

下面是购物车页面

<!DOCTYPE html><html><head lang="en"><meta charset="UTF-8"><title>完善当当购物车页面</title><style type="text/css">body,ul,li,div,p,h1,h2,ol{margin: 0;padding: 0;}ul,li,ol{list-style: none;}.content{width: 810px; margin: 0 auto; font-family: "微软雅黑";}.logo{margin: 10px 0;}.logo span{display: inline-block;float: right;width: 60px;height: 30px;line-height: 30px;font-size: 14px;background: #ff0000;color: #ffffff;text-align: center;border-radius: 10px;margin-top: 5px;margin-right: 10px;cursor: pointer;font-weight: bold;}.cartList{/*background: url("../image/02.jpg") no-repeat;*//*height: 414px;*/overflow: hidden;}.cartList ul{display: flex;justify-content: space-between;/*float: right;*//*width: 450px;*/}.cartList ul:nth-of-type(1){display: flex;margin-top: 125px;}.cartList ul:nth-of-type(2){margin: 20px 0;}.cartList ul li{font-family: "微软雅黑";font-size: 12px;color: #666666;text-align: center;line-height: 25px;/*float: left;*/}.cartList ul li input[name="price"]{border: none;background: transparent;width: 45px;text-align: center;}.cartList ul li input[name="amount"]{width: 45px;text-align: center;border: 1px solid #999999;border-left: none;border-right: none;height: 21px;}.cartList ul li input[name="minus"],.cartList ul li input[name="plus"]{height: 25px;border: 1px #999999 solid;width: 25px;text-align: center;}.cartList ul li:nth-of-type(1){width: 130px;}.cartList ul li:nth-of-type(2){width: 100px;}.cartList ul li:nth-of-type(3){width: 130px;}.cartList ul li p{cursor: pointer;}.cartList ol{float: right;clear: both;margin-top: 40px;}.cartList ol li{float: left;}.cartList ol li:nth-of-type(1){color: #ff0000;width: 80px;height: 35px;line-height: 35px;text-align: center;}.cartList ol li span{display: inline-block;float: right;width: 80px;height: 35px;line-height: 35px;font-size: 14px;font-family: "微软雅黑";background: #ff0000;color: #ffffff;text-align: center;/*margin-top: 5px;*//*margin-right: 15px;*/cursor: pointer;font-weight: bold;}</style></head><!--onload,在加载时计算好原始金额--><body onload="total()"><div class="content"><div class="logo"><span ><a href="购买精选.html#gouwu" style="color: white;text-decoration: none;">关闭</a></span></div><div class="cartList"><ul><a name="gouwuche"><li>商品信息</li></a><li>商品图片</li><li>单价(元)</li><li>数量</li><li>金额(元)</li><li>操作</li></ul><ul style="display: flex;justify-content: space-between;align-items: center" id="first"><li>Nike/耐克AIR JORDAN 1 男女AJ1薄荷绿</li><li><img src="images/xie2.jpg" alt="" width="50" height="50"></li><li>¥<input type="text" name="price" value="2799"></li><li><input type="button" name="minus" value="-" onclick="minus(0)"><input type="text" name="amount" value="1"><input type="button" name="plus" value="+" onclick="plus(0)" ></li><li id="price0">¥2799</li><li><p onclick="save()">移入收藏</p><p onclick="delete1()">删除</p></li></ul><ul style="display: flex;justify-content: space-between;align-items: center; margin: 20px 0;"><li>Nike耐克官方AIR MAX 270 REACT女子运动鞋</li><li><img src="images/xie7.jpg" alt="" width="50" height="50"></li><li>¥<input type="text" name="price" value="1039"></li><li><input type="button" name="minus" value="-" onclick="minus(1)"><input type="text" name="amount" value="2"><input type="button" name="plus" value="+" onclick="plus(1)"></li><li id="price1">¥1039</li><li><p onclick="save()">移入收藏</p><p onclick="delete1()">删除</p></li></ul><ul style="display: flex;justify-content: space-between;align-items: center; margin: 20px 0;"><li>李宁羽毛球鞋女鞋防滑女士鞋子低帮运动鞋</li><li><img src="images/xie11.jpg" alt="" width="50" height="50"></li><li>¥<input type="text" name="price" value="228"></li><li><input type="button" name="minus" value="-" onclick="minus(2)"><input type="text" name="amount" value="3"><input type="button" name="plus" value="+" onclick="plus(2)"></li><li id="price2">¥228</li><li><p onclick="save()">移入收藏</p><p onclick="delete1()">删除</p></li></ul><ul style="display: flex;justify-content: space-between;align-items: center; margin: 20px 0;"><li>PUMA彪马官方正品 刘雯同款新款女子复古休闲鞋</li><li><img src="images/xie15.jpg" alt="" width="50" height="50"></li><li>¥<input type="text" name="price" value="809"></li><li><input type="button" name="minus" value="-" onclick="minus(3)"><input type="text" name="amount" value="4"><input type="button" name="plus" value="+" onclick="plus(3)"></li><li id="price3">¥809</li><li><p onclick="save()">移入收藏</p><p onclick="delete1()">删除</p></li></ul><ul style="display: flex;justify-content: space-between;align-items: center; margin: 20px 0;"><li>【燃冬季】Vans范斯官方灰色Vans解构小香风男女</li><li><img src="images/xie19.jpg" alt="" width="50" height="50"></li><li>¥<input type="text" name="price" value="465"></li><li><input type="button" name="minus" value="-" onclick="minus(4)"><input type="text" name="amount" value="5"><input type="button" name="plus" value="+" onclick="plus(4)"></li><li id="price4">¥465</li><li><p onclick="save()">移入收藏</p><p onclick="delete1()">删除</p></li></ul><ol><li id="totalPrice">&nbsp;</li><li><span>结算</span></li></ol></div></div></body></html><script>//减法function minus(index) {//获取当前数量的值var amounts=document.getElementsByName("amount");//得到第一个amount的元素的value属性的值var count=parseInt(amounts[index].value); //数量加1if (count<=1){alert("不能再减了,快没了!!");} else {//得到第一个amount的元素的value属性的值var count=parseInt(amounts[index].value)-1; //数量加1//重新把count的值绑定在数量文本框里amounts[index].value=count;var prices=document.getElementsByName("price");var price=parseFloat(prices[index].value);//乘以Math.pow(10,2)的原因为避免失真var totalMoney=((price*Math.pow(10,2))*count)/Math.pow(10,2);document.getElementById("price"+index).innerHTML="¥:"+totalMoney;}total();}//加法function plus(index) {//获取当前数量的值var amounts=document.getElementsByName("amount");//得到第一个amount的元素的value属性的值var count=parseInt(amounts[index].value)+1; //数量加1//重新把count的值绑定在数量文本框里amounts[index].value=count;//当前操作端口的价格也要重新计算//得到当前端口的单价var prices=document.getElementsByName("price");var price=parseFloat(prices[index].value);//乘以Math.pow(10,2)的原因为避免失真var totalMoney=((price*Math.pow(10,2))*count)/Math.pow(10,2);//把当前价格显示在文本中document.getElementById("price"+index).innerHTML="¥:"+totalMoney;total();}//求总金额function total() {//得到所有的数量var counts=document.getElementsByName("amount");//得到所有的单价var prices=document.getElementsByName("price");var sumMoney=0;for (var i=0;i<counts.length;i++){//乘以Math.pow(10,2)的原因为避免失真sumMoney+=(parseFloat(prices[i].value)*Math.pow(10,2)*parseInt(counts[i].value)/Math.pow(10,2));}//把总金额显示再指定的元素中document.getElementById("totalPrice").innerHTML="¥:"+sumMoney;}//加入收藏function save() {if (confirm("确认要收藏吗?")){alert("收藏成功!");}}//删除function delete1() {if (confirm("确认要删除吗?")) {var del=document.getElementById("first");del.parentNode.removeChild(del);alert("删除成功!!");}}</script>

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