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直接上代码了
<!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>
<script type="text/javascript" src="city.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>js全国省市二级联动下拉选择菜单</title>
</head>
<body >
<select id="provinceId" name="province" onChange = "select('provinceId','cityId')"></select>
<select id="cityId" name="city" ></select>
<script type="text/javascript" >initCities('山西','太原','provinceId','cityId')</script>
<select id="provinceId2" name="province" onChange = "select('provinceId2','cityId2')"></select>
<select id="cityId2" name="city" ></select>
<script type="text/javascript" >initCities('山西','太原','provinceId2','cityId2')</script>
</body>
</html>js引入文件 city.js
var where = new Array(32);
function comefrom(loca,locacity) { this.loca = loca; this.locacity = locacity; }
where[0]= new comefrom("选择省份","选择城市");
where[1] = new comefrom("直辖市","选择城市|北京|上海|天津|重庆");
where[2] = new comefrom("特别行政区","选择城市|香港|澳门");
where[3] = new comefrom("河北","选择城市|石家庄|邯郸|邢台|保定|张家口|承德|廊坊|唐山|秦皇岛|沧州|衡水");
where[4] = new comefrom("山西","选择城市|太原|大同|阳泉|长治|晋城|朔州|吕梁|忻州|晋中|临汾|运城");
where[5] = new comefrom("内蒙古","选择城市|呼和浩特|包头|乌海|赤峰|呼伦贝尔盟|阿拉善盟|哲里木盟|兴安盟|乌兰察布盟|锡林郭勒盟|巴彦淖尔盟|伊克昭盟");
where[6] = new comefrom("辽宁","选择城市|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");
where[7] = new comefrom("吉林","选择城市|长春|吉林|四平|辽源|通化|白山|松原|白城|延边");
where[8] = new comefrom("黑龙江","选择城市|哈尔滨|齐齐哈尔|牡丹江|佳木斯|大庆|绥化|鹤岗|鸡西|黑河|双鸭山|伊春|七台河|大兴安岭");
where[9] = new comefrom("江苏","选择城市|南京|镇江|苏州|南通|扬州|盐城|徐州|连云港|常州|无锡|宿迁|泰州|淮安");
where[10] = new comefrom("浙江","选择城市|杭州|宁波|温州|嘉兴|湖州|绍兴|金华|衢州|舟山|台州|丽水");
where[11] = new comefrom("安徽","选择城市|合肥|芜湖|蚌埠|马鞍山|淮北|铜陵|安庆|黄山|滁州|宿州|池州|淮南|巢湖|阜阳|六安|宣城|亳州");
where[12] = new comefrom("福建","选择城市|福州|厦门|莆田|三明|泉州|漳州|南平|龙岩|宁德");
where[13] = new comefrom("江西","选择城市|南昌市|景德镇|九江|鹰潭|萍乡|新馀|赣州|吉安|宜春|抚州|上饶");
where[14] = new comefrom("山东","选择城市|济南|青岛|淄博|枣庄|东营|烟台|潍坊|济宁|泰安|威海|日照|莱芜|临沂|德州|聊城|滨州|菏泽");
where[15] = new comefrom("河南","选择城市|郑州|开封|洛阳|平顶山|安阳|鹤壁|新乡|焦作|濮阳|许昌|漯河|三门峡|南阳|商丘|信阳|周口|驻马店|济源");
where[16] = new comefrom("湖北","选择城市|武汉|宜昌|荆州|襄樊|黄石|荆门|黄冈|十堰|恩施|潜江|天门|仙桃|随州|咸宁|孝感|鄂州");
where[17] = new comefrom("湖南","选择城市|长沙|常德|株洲|湘潭|衡阳|岳阳|邵阳|益阳|娄底|怀化|郴州|永州|湘西|张家界");
where[18] = new comefrom("广东","选择城市|广州|深圳|珠海|汕头|东莞|中山|佛山|韶关|江门|湛江|茂名|肇庆|惠州|梅州|汕尾|河源|阳江|清远|潮州|揭阳|云浮");
where[19] = new comefrom("广西","选择城市|南宁|柳州|桂林|梧州|北海|防城港|钦州|贵港|玉林|南宁地区|柳州地区|贺州|百色|河池");
where[20] = new comefrom("海南","选择城市|海口|三亚");
where[21] = new comefrom("四川","选择城市|成都|绵阳|德阳|自贡|攀枝花|广元|内江|乐山|南充|宜宾|广安|达川|雅安|眉山|甘孜|凉山|泸州");
where[22] = new comefrom("贵州","选择城市|贵阳|六盘水|遵义|安顺|铜仁|黔西南|毕节|黔东南|黔南");
where[23] = new comefrom("云南","选择城市|昆明|大理|曲靖|玉溪|昭通|楚雄|红河|文山|思茅|西双版纳|保山|德宏|丽江|怒江|迪庆|临沧");
where[24] = new comefrom("西藏","选择城市|拉萨|日喀则|山南|林芝|昌都|阿里|那曲");
where[25] = new comefrom("陕西","选择城市|西安|宝鸡|咸阳|铜川|渭南|延安|榆林|汉中|安康|商洛");
where[26] = new comefrom("甘肃","选择城市|兰州|嘉峪关|金昌|白银|天水|酒泉|张掖|武威|定西|陇南|平凉|庆阳|临夏|甘南");
where[27] = new comefrom("宁夏","选择城市|银川|石嘴山|吴忠|固原");
where[28] = new comefrom("青海","选择城市|西宁|海东|海南|海北|黄南|玉树|果洛|海西");
where[29] = new comefrom("新疆","选择城市|乌鲁木齐|石河子|克拉玛依|伊犁|巴音郭勒|昌吉|克孜勒苏柯尔克孜|博尔塔拉|吐鲁番|哈密|喀什|和田|阿克苏");
where[30] = new comefrom("台湾","选择城市|台北|高雄|台中|台南|屏东|南投|云林|新竹|彰化|苗栗|嘉义|花莲|桃园|宜兰|基隆|台东|金门|马祖|澎湖");
where[31] = new comefrom("国外","选择城市|德国|新加坡|美国|加拿大|澳大利亚|日本|英国|巴西|俄罗斯|尼日利亚|马来西亚|爱尔兰|奥地利|挪威|意大利|西班牙|泰国|芬兰|丹麦|荷兰|阿联酋|瑞典|瑞士|比利时|新西兰|法国|韩国|匈牙利|越南|以色列|科威特|希腊|南非|葡萄牙|墨西哥|印尼|其他");
function select(provinceId,cityId) {
with(document.getElementById(provinceId)) { var loca2 = options[selectedIndex].value; }
for(i = 0;i < where.length;i ++) {
if (where[i].loca == loca2) {
loca3 = (where[i].locacity).split("|");
for(j = 0;j < loca3.length;j++) {
with(document.getElementById(cityId)) {
length = loca3.length;
options[j].text = loca3[j];
options[j].value = loca3[j];
// var loca4=options[selectedIndex].value;
}
}
break;
}
}
}
function initCities(province,city,provinceId,cityId) {
alert(1111);
var flag = 0;
with(document.getElementById(provinceId)) {
length = where.length;
for(k=0;k<where.length;k++) {
options[k].text = where[k].loca;
options[k].value = where[k].loca;
if(province !=null && province == where[k].loca){
//带有数值的初始化
options[k].text = "选择省份";
options[k].value = "选择省份";
flag = 1;
}
}
if(province !=null && province != ""){
options[selectedIndex].text = province;
options[selectedIndex].value = province;
}else{
options[selectedIndex].text = where[0].loca;
options[selectedIndex].value = where[0].loca;
}
}
with(document.getElementById(cityId)) {
//未选择省份
if(flag == 0){
var loca3 = (where[0].locacity).split("|");
length = loca3.length;
for(var l=0;l<length;l++) {
options[l].text = loca3[l];
options[l].value = loca3[l];
}
options[selectedIndex].text = loca3[0];
options[selectedIndex].value = loca3[0];
}else{
//选择了省份,先遍历找出省份的where
temp= 0;
for(var p=0;p<where.length;p++){
if(where[p].loca == province)
break;
}
var loca4 = (where[p].locacity).split("|");
length = loca4.length;
for(var c=0; c< length;c++){
options[c].text = loca4[c];
options[c].value = loca4[c];
if(city == loca4[c]){
options[c].text = "选择城市";
options[c].value = "选择城市";
temp = c;
}
}
options[selectedIndex].text = loca4[temp];
options[selectedIndex].value = loca4[temp];
}
}
}