Frank Sun: jQuery 简单实现select二级联动

Tuesday, November 15, 2011

jQuery 简单实现select二级联动

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>jQuery 二级联动</title>
<script src="http://wlog.cn/lib/jquery/jquery-1.3.2.js" type="text/javascript"></script>
<script type="text/javascript">
       $(document).ready(function(){
           $("#province").change(function(){
               $("#province option").each(function(i,o){
                   if($(this).attr("selected"))
                   {
                       $(".city").hide();
                       $(".city").eq(i).show();
                   }
               });
           });
           $("#province").change();
       });
</script>
</head>
<body>
   <select id="province">
       <option>----请选择省份----</option>
       <option>北京</option>
       <option>上海</option>
       <option>江苏</option>
   </select>
   <select class="city">
     <option>----请选择城市----</option>
   </select>
   <select class="city">
       <option>东城</option>
       <option>西城</option>
       <option>崇文</option>
       <option>宣武</option>
       <option>朝阳</option>
   </select>  
   <select class="city">
       <option>黄浦</option>
       <option>卢湾</option>
       <option>徐汇</option>
       <option>长宁</option>
       <option>静安</option>
   </select>
   <select class="city">
       <option>南京</option>
       <option>镇江</option>
       <option>苏州</option>
       <option>南通</option>
       <option>扬州</option>
   </select>
</body>
</html>

Frank Sun

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Tuesday, November 15, 2011

jQuery 简单实现select二级联动

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