具体代码：
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title></title> <meta content=" keywords" /> <meta content="description" /> </head> <script src="https://upcdn.b0.upaiyun.com/libs/jquery/jquery-2.0.2.min.js"> </script> <style type="text/css"> body{font-size:13px} .clsInit{width:435px;height::35px;line-height:35px;padding-left:10px} .clsTip{padding-top:5px;background-color:#eee;display:none} .btn{border:solid 1px #666;padding:2px;width:65px;float:right;margin-top:6px;margin-right:6px;filter:progid:DXImageTransform.Mcrosoft.Gradient(GraientType=0,StartColorStr=#FFFFFF,EndColorStr=#ECE9D8);} </style> <body> <script type="text/javascript"> $(function(){ function objInit(obj){ return $(obj).html('<option>请选择</option>'); } var arrData={ 厂商1: { 品牌一:'型号1-1-1,型号1-1-2', 品牌二:'型号1-2-1,型号1-2-2' }, 厂商2: { 品牌一:'型号2-1-1,型号2-1-2', 品牌二:'型号2-2-1,型号2-2-2'}, 厂商3: { 品牌一:'型号3-1-1,型号3-1-2', 品牌二:'型号3-2-1,型号3-2-2' } }; $.each(arrData,function(pF){ $('#selF').append('<option>'+pF+'</option>'); }); $('#selF').change(function(){ objInit('#selT'); objInit('#selC'); $.each(arrData,function(pF,pS){ if($('#selF option:selected').text()==pF){ $.each(pS,function(pT,pC){ $('#selT').append('<option>'+pT+'</option>'); }); $('#selT').change(function(){ objInit('#selC'); $.each(pS,function(pT,pC){ if($('#selT option:selected').text()==pT){ $.each(pC.split(","),function(){ $('#selC').append('<option>'+this+'</option>'); }) } }) }); } }) }); }); </script> <div> 厂商：<select><option>请选择</option></select> 品牌：<select><option>请选择</option></select> 型号：<select><option>请选择</option></select> <input type="button" value="查询" /> </div> <div></div> </body> </html>