js实现省市级联效果分享

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我是靠谱客的博主务实河马，这篇文章主要介绍js实现省市级联效果分享，现在分享给大家，希望可以做个参考。

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

复制代码

<!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>

<body onload="getSheng()">

省：<select id="sheng" onchange="getCity()"> 
      <option>--请选择</option>
    </select>
    市：<select id="city"></select>
  </body>
</html>

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<!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>