js实现省市级联效果分享

2020-11-27 来源：尚佳旅游分享网

本文实例为大家分享了js实现省市级联效果的具体代码，供大家参考，具体内容如下

<!DOCTYPE html>
<html>
 <head>
 <meta charset="UTF-8">
 <title></title>
 </head>
 <script type="text/javascript">
 var shengArr =new Array();
 shengArr["广东"]=["广州","深圳","珠海","汕头","韶关"] ;
 shengArr["湖南"]=["长沙","张家界","株洲","怀化","常德"] ;
 shengArr["湖北"]=["武汉","荆州","宜昌","黄冈","仙桃"] ;
 shengArr["安徽"]=["合肥","黄山"] ;
 shengArr["河南"]=["郑州","信阳","洛阳"] ;

 function getSheng(){
 var s =document.getElementById("sheng");

 for(var v in shengArr){
 s.add(new Option(v,v),null);
 }
 }
 function getCity(){
 var s =document.getElementById("sheng");
 var c =document.getElementById("city");
 var v=s.value;
 c.options.length =0;

 for(var i in shengArr[v]){ 
 c.add(new Option(shengArr[v][i],shengArr[v][i]),null);
 }
 }
 </script>

 <!--页面加载时获取 省名-->
 <body onload="getSheng()"> 

 <!-- 改变省时匹配该省的城市名-->
 省：<select id="sheng" onchange="getCity()"> 
 <option>--请选择</option>
 </select>
 市：<select id="city"></select>
 </body>
</html>

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js实现省市级联效果分享