jQuery 中国省市两级联动选择附图
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>省市两级联动选择</title>
<style type="text/css">
select
{
width: 135px;
}
fieldset dl dd
{
float: left;
margin-left: 20px;
}
fieldset pre
{
width: 100%;
height: 400px;
overflow-y: scroll;
overflow-x: hidden;
}
</style>
<!-- jQuery库文件引入 -->
<script language="javascript" type="text/javascript" src="JS/jquery-1.7.1.min.js"></script>
<script type="text/javascript" language="javascript">
//定义数组，存储省份信息
var province = ["北京", "上海", "天津", "重庆", "浙江", "江苏", "广东", "福建", "湖南", "湖北", "辽宁",
"吉林", "黑龙江", "河北", "河南", "山东", "陕西", "甘肃", "新疆", "青海", "山西", "四川",
"贵州", "安徽", "江西", "云南", "内蒙古", "西藏", "广西", "宁夏", "海南", "香港", "澳门", "台湾"];
//定义数组,存储城市信息
var beijing = ["东城区", "西城区", "海淀区", "朝阳区", "丰台区", "石景山区", "通州区", "顺义区", "房山区", "大兴区", "昌平区", "怀柔区", "平谷区", "门头沟区", "延庆县", "密云县"];
var shanghai = ["浦东新区", "徐汇区", "长宁区", "普陀区", "闸北区", "虹口区", "杨浦区", "黄浦区", "卢湾区", "静安区", "宝山区", "闵行区", "嘉定区", "金山区", "松江区", "青浦区", "南汇区", "奉贤区", "崇明县"];
var tianjing = ["河东", "南开", "河西", "河北", "和平", "红桥", "东丽", "津南", "西青", "北辰", "塘沽", "汉沽", "大港", "蓟县", "宝坻", "宁河", "静海", "武清"];
var chongqing = ["渝中区", "大渡口区", "江北区", "沙坪坝区", "九龙坡区", "南岸区", "北碚区", "万盛区", "双桥区", "渝北区", "巴南区", "万州区", "涪陵区", "黔江区", "长寿区", "江津区", "合川区", "永川区", "南川区"];
var jiangsu = ["南京", "无锡", "常州", "徐州", "苏州", "南通", "连云港", "淮安", "扬州", "盐城", "镇江", "泰州", "宿迁"];
var zhejiang = ["杭州", "宁波", "温州", "嘉兴", "湖州", "绍兴", "金华", "衢州", "舟山", "台州", "利水"];
var guangdong = ["广州", "韶关", "深圳", "珠海", "汕头", "佛山", "江门", "湛江", "茂名", "肇庆", "惠州", "梅州", "汕尾", "河源", "阳江", "清远", "东莞", "中山", "潮州", "揭阳"];
var fujiang = ["福州", "厦门", "莆田", "三明", "泉州", "漳州", "南平", "龙岩", "宁德"];
var hunan = ["长沙", "株洲", "湘潭", "衡阳", "邵阳", "岳阳", "常德", "张家界", "益阳", "郴州", "永州", "怀化", "娄底", "湘西土家苗族自治区"];
var hubei = ["武汉", "襄阳", "黄石", "十堰", "宜昌", "鄂州", "荆门", "孝感", "荆州", "黄冈", "咸宁", "随州", "恩施土家族苗族自治州"];
var liaoning = ["沈阳", "大连", "鞍山", "抚顺", "本溪", "丹东", "锦州", "营口", "阜新", "辽阳", "盘锦", "铁岭", "朝阳", "葫芦岛"];
var jilin = ["长春", "吉林", "四平", "辽源", "通化", "白山", "松原", "白城", "延边朝鲜族自治区"];
var heilongjiang = ["哈尔滨", "齐齐哈尔", "鸡西", "牡丹江", "佳木斯", "大庆", "伊春", "黑河", "大兴安岭"];
var hebei = ["石家庄", "保定", "唐山", "邯郸", "承德", "廊坊", "衡水", "秦皇岛", "张家口"];
var henan = ["郑州", "洛阳", "商丘", "安阳", "南阳", "开封", "平顶山", "焦作", "新乡", "鹤壁", "许昌", "漯河", "三门峡", "信阳", "周口", "驻马店", "济源"];
var shandong = ["济南", "青岛", "菏泽", "淄博", "枣庄", "东营", "烟台", "潍坊", "济宁", "泰安", "威海", "日照", "滨州", "德州", "聊城", "临沂"];
var shangxi = ["西安", "宝鸡", "咸阳", "渭南", "铜川", "延安", "榆林", "汉中", "安康", "商洛"];
var gansu = ["兰州", "嘉峪关", "金昌", "金川", "白银", "天水", "武威", "张掖", "酒泉", "平凉", "庆阳", "定西", "陇南", "临夏", "合作"];
var qinghai = ["西宁", "海东地区", "海北藏族自治州", "黄南藏族自治州", "海南藏族自治州", "果洛藏族自治州", "玉树藏族自治州", "海西蒙古族藏族自治州"];
var xinjiang = ["乌鲁木齐", "奎屯", "石河子", "昌吉", "吐鲁番", "库尔勒", "阿克苏", "喀什", "伊宁", "克拉玛依", "塔城", "哈密", "和田", "阿勒泰", "阿图什", "博乐"];
var shanxi = ["太原", "大同", "阳泉", "长治", "晋城", "朔州", "晋中", "运城", "忻州", "临汾", "吕梁"];
var sichuan = ["成都", "自贡", "攀枝花", "泸州", "德阳", "绵阳", "广元", "遂宁", "内江", "乐山", "南充", "眉山", "宜宾", "广安", "达州", "雅安", "巴中", "资阳", "阿坝藏族羌族自治州", "甘孜藏族自治州", "凉山彝族自治州"];
var guizhou = ["贵阳", "六盘水", "遵义", "安顺", "黔南布依族苗族自治州", "黔西南布依族苗族自治州", "黔东南苗族侗族自治州", "铜仁", "毕节"];
var anhui = ["合肥", "芜湖", "安庆", "马鞍山", "阜阳", "六安", "滁州", "宿州", "蚌埠", "巢湖", "淮南", "宣城", "亳州", "淮北", "铜陵", "黄山", "池州"];
var jiangxi = ["南昌", "九江", "景德镇", "萍乡", "新余", "鹰潭", "赣州", "宜春", "上饶", "吉安", "抚州"];
var yunnan = ["昆明", "曲靖", "玉溪", "保山", "昭通", "丽江", "普洱", "临沧", "楚雄彝族自治州", "大理白族自治州", "红河哈尼族彝族自治州", "文山壮族苗族自治州", "西双版纳傣族自治州", "德宏傣族景颇族自治州", "怒江傈僳族自治州", "迪庆藏族自治州"];
var neimenggu = ["呼和浩特", "包头", "乌海", "赤峰", "通辽", "鄂尔多斯", "呼伦贝尔", "巴彦淖尔", "乌兰察布"];
var guangxi = ["南宁", "柳州", "桂林", "梧州", "北海", "防城港", "钦州", "贵港", "玉林", "百色", "贺州", "河池", "崇左"];
var xizang = ["拉萨", "昌都地区", "林芝地区", "山南地区", "日喀则地区", "那曲地区", "阿里地区"];
var ningxia = ["银川", "石嘴山", "吴忠", "固原", "中卫"];
var hainan = ["海口", "三亚"];
var xianggang = ["中西区", "湾仔区", "东区", "南区", "九龙城区", "油尖旺区", "观塘区", "黄大仙区", "深水埗区", "北区", "大埔区", "沙田区", "西贡区", "元朗区", "屯门区", "荃湾区", "葵青区", "离岛区"];
var taiwan = ["台北", "高雄", "基隆", "台中", "台南", "新竹", "嘉义"];
var aomeng = ["澳门半岛", "氹仔岛", "路环岛"];
//页面加载方法
$(function () {
//设置省份数据
setProvince();
//设置背景颜色
setBgColor();
});
//设置省份数据
function setProvince() {
//给省份下拉列表赋值
var option, modelVal;
var $sel = $("#selProvince");
//获取对应省份城市
for (var i = 0, len = province.length; i < len; i++) {
modelVal = province[i];
option = "<option value='" + modelVal + "'>" + modelVal + "</option>";
//添加到 select 元素中
$sel.append(option);
}
//调用change事件，初始城市信息
provinceChange();
}
//根据选中的省份获取对应的城市
function setCity(provinec) {
var $city = $("#selCity");
var proCity, option, modelVal;
//通过省份名称，获取省份对应城市的数组名
switch (provinec) {
case "北京":
proCity = beijing;
break;
case "上海":
proCity = shanghai;
break;
case "天津":
proCity = tianjing;
break;
case "重庆":
proCity = chongqing;
break;
case "浙江":
proCity = zhejiang;
break;
case "江苏":
proCity = jiangsu;
break;
case "广东":
proCity = guangdong;
break;
case "福建":
proCity = fujiang;
break;
case "湖南":
proCity = hunan;
break;
case "湖北":
proCity = hubei;
break;
case "辽宁":
proCity = liaoning;
break;
case "吉林":
proCity = jilin;
break;
case "黑龙江":
proCity = heilongjiang;
break;
case "河北":
proCity = hebei;
break;
case "河南":
proCity = henan;
break;
case "山东":
proCity = shandong;
break;
case "陕西":
proCity = shangxi;
break;
case "甘肃":
proCity = gansu;
break;
case "新疆":
proCity = xinjiang;
break;
case "青海":
proCity = qinghai;
break;
case "山西":
proCity = shanxi;
break;
case "四川":
proCity = sichuan;
break;
case "贵州":
proCity = guizhou;
break;
case "安徽":
proCity = anhui;
break;
case "江西":
proCity = jiangxi;
break;
case "云南":
proCity = yunnan;
break;
case "内蒙古":
proCity = neimenggu;
break;
case "西藏":
proCity = xizang;
break;
case "广西":
proCity = guangxi;
break;
case "":
proCity = xizang;
break;
case "宁夏":
proCity = ningxia;
break;
case "海南":
proCity = hainan;
break;
case "香港":
proCity = xianggang;
break;
case "澳门":
proCity = aomeng;
break;
case "台湾":
proCity = taiwan;
break;
}
//先清空之前绑定的值
$city.empty();
//设置对应省份的城市
for (var i = 0, len = proCity.length; i < len; i++) {
modelVal = proCity[i];
option = "<option value='" + modelVal + "'>" + modelVal + "</option>";
//添加
$city.append(option);
}
//设置背景
setBgColor();
}
//省份选中事件
function provinceChange() {
var $pro = $("#selProvince");
setCity($pro.val());
}
//设置下拉列表间隔背景样色
function setBgColor() {
var $option = $("select option:odd");
$option.css({ "background-color": "#DEDEDE" });
}
</script>
</head>
<body>
<fieldset>
<legend>中国三级行政单位联动</legend>
<dl>
<dd>
省 份：<select id="selProvince" onchange="provinceChange();"></select>
</dd>
<dd>
市(区)：<select id="selCity"></select>
</dd>
</dl>
</fieldset>
</body>
</html>
效果图如下： 
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