JScript实现地址选择功能 JScript实现地址选择功能

时间:2021-03-29 顾白的顾小白人气:0

想了解JScript实现地址选择功能的相关内容吗，顾白的顾小白在本文为您仔细讲解JScript实现地址选择功能的相关知识和一些Code实例，欢迎阅读和指正，我们先划重点：JScript,地址选择，下面大家一起来学习吧。

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title></title>
    <script>
      var shenArr = new Array(5);
      shenArr["广东"] = ["广州","深圳","韶关","汕头","茂名"];
      shenArr["湖南"] = ["长沙","张家界","株洲","岳阳","吉首"];
      shenArr["湖北"] = ["武汉","宜昌","荆州","黄冈","仙桃"];
      shenArr["安徽"] = ["合肥","黄山"];
      shenArr["河南"] = ["郑州","开封","洛阳","信阳"];
       function getShen(){
        var s = document.getElementById("shen");
        for(var v in shenArr){
          //把数组键加入到省的下拉框
          s.add(new Option(v,v),null);
        }
       }

      function getCity(){
        var s = document.getElementById("shen");
        var c = document.getElementById("city");
        var v = s.value;//省份的名称，也是数组中的键
        c.options.length = 0;//把城市下拉框中的项清除

        //循环把某一个省的城市加入到市的下拉框
        for(var i in shenArr[v] ){
          c.add(new Option(shenArr[v][i],shenArr[v][i]),null);
        }

      }

    </script>
  </head>
  <body onload="getShen()">
    省:<select id="shen" onchange="getCity()">
      <option value="0">--请选择--</option>
    </select>
    市:<select id="city"></select>
  </body>
</html>

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