<script type="text/javascript" src="js/jquery.js"></script> 
<script type="text/javascript" src="js/jquery.cityselect.js"></script> 

 
<div id="city"> 
   <select class="prov"></select> 
  <select class="city" disabled="disabled"></select> 
  <select class="dist" disabled="disabled"></select> 
</div> 

 
$("#city").citySelect(); 

 
$("#city").citySelect({ 
  url:"js/city.min.js", 
  prov:"湖南", //省份 
  city:"长沙", //城市 
  dist:"岳麓区", //区县 
  nodata:"none" //当子集无数据时，隐藏select 
}); 

 
$("#city").citySelect({ 
  url:{"citylist":[ 
    {"p":"前端技术","c":[{"n":"HTML"},{"n":"CSS","a":[{"s":"CSS2.0"},{"s":"CSS3.0"}]}, 
    {"n":"JAVASCIPT"}]}, 
    {"p":"编程语言","c":[{"n":"C"},{"n":"C++"},{"n":"PHP"},{"n":"JAVA"}]}, 
    {"p":"数据库","c":[{"n":"Mysql"},{"n":"SqlServer"},{"n":"Oracle"}]}, 
  ]}, 
  prov:"", 
  city:"", 
  dist:"", 
  nodata:"none" 
}); 

 
$("#city").citySelect({ 
  url:"data.php" 
});