实例
<!DOCTYPE html> <html> <head> <title>hello world!</title> <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script> <style type="text/css"> * {margin: 0px auto;padding: 0px;} .top {width: 402px;height: 35px;line-height: 35px;text-align:center;margin-top: 50px; background: #C40000;color:#fff;} .main {width: 400px;height: 400px;border: 1px solid #C40000;} p {width: 400px;height: 26px;margin-top:10px;} b {width: 90px;height: 26px;line-height: 26px;text-align: center;font-size: 12px;color:#838383; border: 1px solid #ccc;float: left;margin-left: 5px;} span {width: 90px;height: 26px;line-height: 26px;text-align: center;font-size: 12px;color:#838383; border: 1px solid #ccc;display: block;float: left;margin-left: 5px;} span:hover {cursor: pointer;} button {width: 120px;height: 35px;background: #C40000;color: white;border: 0px;} button:hover {cursor: pointer;} .notice{border:0px;} .notice+input{width:60px;margin-left: 6px;text-align: center;} .select{border: 2px solid red;width: 88px;height: 24px;color: red;line-height: 24px;} </style> </head> <body> <div class="top">请选择信息后加入购物车</div> <div class="main"> <p class="item" name="version"> <b class="notice">版本</b> <span>ONE A2001</span> <span>ONE A0001</span> <span>ONE A1001</span> </p> <p class="item" name="color"> <b class="notice">机身颜色</b> <span>白色</span> <span>黑色</span> <span>金色</span> </p> <p class="item" name="type"> <b class="notice">套餐类型</b> <span>标配</span> <span>套餐一</span> <span>套餐二</span> </p> <p class="item" name="ram"> <b class="notice">运行内存</b> <span>2GB</span> <span>3GB</span> <span>4GB</span> </p> <p class="item" name="rom"> <b class="notice">机身内存</b> <span>16GB</span> <span>32GB</span> <span>64GB</span> </p> <p class="item" name="location"> <b class="notice">产地</b> <span>中国大陆</span> <span>港澳台</span> </p> <p class="item" name="price"> <b class="notice">价格</b> <span>999元抢购</span> </p> <p class="item1" name="num"> <b class="notice">数量</b> <input type="number" value="1" > </p> <p style="margin-top:30px;margin-left:95px;"> <button class="bu1" id='sub'>加入购物车</button> </p> </div> <script> $(function(){ $('span').click(function(){ if($(this).hasClass('select')){ $(this).removeClass('select'); }else{ $(this).addClass('select').siblings("span").removeClass('select'); } }) $('#sub').click(function(){ var form={}; var flag=true; $('.item').each(function(){ if($(this).children('span.select').length !=1){ flag=false; }else{ var key=$(this).attr('name'); var value=$(this).children('span.select').html(); form[key]=value; } }) if($('.item1 input').val()<=0){ flag=false; }else{ form['num']=$('.item1 input').val(); console.log(form) } if(flag){ alert('加入购物车') }else{ alert('未选中') } }) }) </script> </body> </html>
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