中国地区三级联动下拉菜单代码和示例(附带代码下载)

dsy.add("0_29",["杭州","湖州","嘉兴","金华","丽水","宁波","绍兴","台州","温州","舟山","衢州"]);
dsy.add("0_29_0",["淳安县","富阳市","杭州市","建德市","临安市","桐庐县"]);
dsy.add("0_29_1",["安吉县","长兴县","德清县","湖州市"]);
dsy.add("0_29_2",["海宁市","海盐县","嘉善县","嘉兴市","平湖市","桐乡市"]);
dsy.add("0_29_3",["东阳市","金华市","兰溪市","磐安县","浦江县","武义县","义乌市","永康市"]);
dsy.add("0_29_4",["景宁畲族自治县","丽水市","龙泉市","青田县","庆元县","松阳县","遂昌县","云和县","缙云县"]);
dsy.add("0_29_5",["慈溪市","奉化市","宁波市","宁海县","象山县","余姚市"]);
dsy.add("0_29_6",["上虞市","绍兴市","绍兴县","新昌县","诸暨市","嵊州市"]);
dsy.add("0_29_7",["临海市","三门县","台州市","天台县","温岭市","仙居县","玉环县"]);
dsy.add("0_29_8",["苍南县","洞头县","乐清市","平阳县","瑞安市","泰顺县","温州市","文成县","永嘉县"]);
dsy.add("0_29_9",["舟山市","岱山县","嵊泗县"]);
dsy.add("0_29_10",["常山县","江山市","开化县","龙游县","衢州市"]);

dsy.add("0_30",["重庆"]);
dsy.add("0_30_0",["城口县","大足县","垫江县","丰都县","奉节县","合川市","江津市","开县","梁平县","南川市","彭水苗族土家族自治县","荣昌县","石柱土家族自治县","铜梁县","巫山县","巫溪县","武隆县","秀山土家族苗族自治县","永川市","酉阳土家族苗族自治县","云阳县","忠县","重庆市","潼南县","璧山县","綦江县"]);

var s=["province","city","county"];
var opt0 = ["省份","地级市","市、县级市、县"];
function setup()
{
for(i=0;i<s.length-1;i++)
  document.getElementById(s[i]).onchange=new Function("change("+(i+1)+")");
change(0);
}

二.引用页index.aspx

代码:

<%@ Page language="c#" Codebehind="index.aspx.cs" AutoEventWireup="false" Inherits="areaselect.WebForm1" %>

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