请教一个JS数组二级联动菜单取值问题

[kevin82819]

关于省市的二级联动
省：<select id="hometown" name="hometown" onchange="getconty()" >
<option selected="selected">选择省份</option>
<option>北京市 </option>
<option>广东省 </option>
<option>上海市 </option>
<option>天津市 </option>
</select>
市： <select id="conty" name="conty" >
<option value="-1">请选择</option>
</select>

然后这个是JS：
var city=[
["东城区","西城区", "崇文区", "宣武区","朝阳区","海淀区","丰台区","石景山区","房山区","通州区","顺义区"],
["广州","深圳", "珠海","汕头","韶关","佛山","江门","湛江","茂名","肇庆","惠州","梅州","汕尾","河源","阳江","清远"],
["黄浦区","卢湾区", "徐汇区","长宁区","静安区","普陀区","闸北区","虹口区","杨浦区","宝山区","闵行区"],
["和平区","河东区", "河西区","南开区","河北区","红桥区","塘沽区","汉沽区","大港区","东丽区","西青区""],
function getconty(){
/*
var sltCity = document.getElementById('s2') ;
sltCity.innerHTML='';
for(i=0;i<city[index].length;i++){
sltCity.options[sltCity.options.length]=city[index][i];
}

*/
var sltProvince = document.getElementById("hometown") ;
var sltCity = document.getElementById("conty") ;

var provinceCity = city[sltProvince.selectedIndex - 1];
sltCity.length = 1 ;

for ( i = 0 ; i < provinceCity.length ; i++ ) {
sltCity[i + 1] = new Option(provinceCity[i], provinceCity[i]) ;
}
}
请问下这个该怎么取得省和市的值 然后写入数据库，数据库的字段为sheng 和shi

[ryhbgs]

你的js写的有问题，应该将省份一起写入js文件中。百度一下网上很多这类代码。

[ryhbgs]

给你找了一个类似的，你看看吧：

<script language="javascript">
<!--
var where = new Array(35);
function comefrom(loca,locacity) { this.loca = loca; this.locacity = locacity; }
where[0]= new comefrom("请选择省份名","请选择城市名");
where[1] = new comefrom("北京","|东城|西城|崇文|宣武|朝阳|丰台|石景山|海淀|门头沟|房山|通州|顺义|昌平|大兴|平谷|怀柔|密云|延庆"); 
where[2] = new comefrom("上海","|黄浦|卢湾|徐汇|长宁|静安|普陀|闸北|虹口|杨浦|闵行|宝山|嘉定|浦东|金山|松江|青浦|南汇|奉贤|崇明");
where[3] = new comefrom("天津","|和平|东丽|河东|西青|河西|津南|南开|北辰|河北|武清|红挢|塘沽|汉沽|大港|宁河|静海|宝坻|蓟县");
where[4] = new comefrom("重庆","|万州|涪陵|渝中|大渡口|江北|沙坪坝|九龙坡|南岸|北碚|万盛|双挢|渝北|巴南|黔江|长寿|綦江|潼南|铜梁|大足|荣昌|壁山|梁平|城口|丰都|垫江|武隆|忠县|开县|云阳|奉节|巫山|巫溪|石柱|秀山|酉阳|彭水|江津|合川|永川|南川");
where[5] = new comefrom("河北","|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[6] = new comefrom("山西","|太原|大同|阳泉|长治|晋城|朔州|吕梁|忻州|晋中|临汾|运城");
where[7] = new comefrom("内蒙古","|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[8] = new comefrom("辽宁","|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[9] = new comefrom("吉林","|长春|吉林|四平|辽源|通化|白山|松原|白城|延边");
where[10] = new comefrom("黑龙江","|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[11] = new comefrom("江苏","|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[12] = new comefrom("浙江","|杭州|宁波|温州|嘉兴|湖州|绍兴|金华|衢州|舟山|台州|丽水");
where[13] = new comefrom("安徽","|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[14] = new comefrom("福建","|福州|厦门|莆田|三明|泉州|漳州|南平|龙岩|宁德");
where[15] = new comefrom("江西","|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[16] = new comefrom("山东","|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[17] = new comefrom("河南","|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[18] = new comefrom("湖北","|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[19] = new comefrom("湖南","|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[20] = new comefrom("广东","|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[21] = new comefrom("广西","|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[22] = new comefrom("海南","|海口|三亚");
where[23] = new comefrom("四川","|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[24] = new comefrom("贵州","|贵阳|六盘水|遵义|安顺|铜仁|黔西南|毕节|黔东南|黔南");
where[25] = new comefrom("云南","|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[26] = new comefrom("西藏","|拉萨|日喀则|山南|林芝|昌都|阿里|那曲");
where[27] = new comefrom("陕西","|西安|宝鸡|咸阳|铜川|渭南|延安|榆林|汉中|安康|商洛");
where[28] = new comefrom("甘肃","|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[29] = new comefrom("宁夏","|银川|石嘴山|吴忠|固原");
where[30] = new comefrom("青海","|西宁|海东|海南|海北|黄南|玉树|果洛|海西");
where[31] = new comefrom("新疆","|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[32] = new comefrom("香港","");
where[33] = new comefrom("澳门","");
where[34] = new comefrom("台湾","|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[35] = new comefrom("其它","|北美洲|南美洲|亚洲|非洲|欧洲|大洋洲");
function select() {
with(document.creator.province) { 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.creator.city) { length = loca3.length; options[j].text = loca3[j]; options[j].value = loca3[j]; var loca4=options[selectedIndex].value;}}
break;
}}
document.creator.newlocation.value=loca2+loca4;
}
function init() {
with(document.creator.province) {
length = where.length;
for(k=0;k<where.length;k++) { options[k].text = where[k].loca; options[k].value = where[k].loca; }
options[selectedIndex].text = where[0].loca; options[selectedIndex].value = where[0].loca;
}
with(document.creator.city) {
loca3 = (where[0].locacity).split("|");
length = loca3.length;
for(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];
}}
-->
</script>
省份 <select name="province" onChange = "select()"></select>　城市 <select name="city" onChange = "select()"></select>
我在 <input type=text name="newlocation" maxlength=12 size=12 style="font-weight: bold">　不能超过12个字符（6个汉字）
</form>

[xiaoxu_2629603619]

ASP-JS二级联动菜单示例 //引入script项目地址 <SCRIPT language=javascript src="Jsl/city.js"></SCRIPT> <script language="JavaScript"> </script> //添加联动菜单 <select onChange="selectcityarea('Province','City','form1');" name=Province> <option value=0 selected>-请选择-</option> </select>//一级联动 <SELECT name="City"><OPTION value=0 selected>-请选择-</OPTION></SELECT>//二级联动 //city.js文件代码 cityareaname=new Array(35); cityareacode=new Array(35); function first(preP,preC,formname,selectP,selectC) { a=0; if (selectP=='北京') { a=1;tempoption=new Option('北京','北京',false,true); } else { tempoption=new Option('北京','北京'); } eval('document.'+formname+'.'+preP+'.options[1]=tempoption;'); cityareacode[0]=new Array('0101','0102','0103','0104','0105','0106','0107','0108'); cityareaname[0]=new Array('东城区','西城区','崇文区','宣武区','朝阳区','海淀区','丰台区','石景山'); if (selectP=='深圳') { a=2;tempoption=new Option('深圳','深圳',false,true); } else { tempoption=new Option('深圳','深圳'); } eval('document.'+formname+'.'+preP+'.options[2]=tempoption;'); cityareacode[1]=new Array('0201','0202','0203','0204','0205','0206'); cityareaname[1]=new Array('罗湖','福田','南山','盐田','宝安','龙岗'); if (selectP=='上海') { a=3;tempoption=new Option('上海','上海',false,true); } else { tempoption=new Option('上海','上海'); } eval('document.'+formname+'.'+preP+'.options[3]=tempoption;'); cityareacode[2]=new Array('0301','0302','0303','0304','0305','0306','0307','0308','0309','0310','0311','0312','0313','0314','0315','0316','0317','0318','0319','0320'); cityareaname[2]=new Array('宝山','金山','南市','长宁','静安','青浦','崇明','卢湾','松江','奉贤','浦东','杨浦','虹口','普陀','闸北','黄浦','闵行','徐汇','嘉定','南汇'); ，，，，，，。。。。。。。。。。。（略） eval('document.'+formname+'.'+preP+'.options[a].selected=true;'); //cityid=selectP; cityid=a; if (cityid!='0') { b=0;for (i=0;i<cityareaname[cityid-1].length;i++) { if (selectC==cityareaname[cityid-1][i]) {b=i+1;tempoption=new Option(cityareaname[cityid-1][i],cityareaname[cityid-1][i],false,true);} else tempoption=new Option(cityareaname[cityid-1][i],cityareaname[cityid-1][i]); eval('document.'+formname+'.'+preC+'.options[i+1]=tempoption;'); } eval('document.'+formname+'.'+preC+'.options[b].selected=true;'); }//CodeGo.net/ } //修改版不用城市代码，直接用城市名称 function selectcityarea(preP,preC,formname) { cityid=eval('document.'+formname+'.'+preP+'.selectedIndex;'); j=eval('document.'+formname+'.'+preC+'.length;'); for (i=1;i<j;i++) {eval('document.'+formname+'.'+preC+'.options[j-i]=null;')} if (cityid!="0") { for (i=0;i<cityareaname[cityid-1].length;i++) { tempoption=new Option(cityareaname[cityid-1][i],cityareaname[cityid-1][i]); eval('document.'+formname+'.'+preC+'.options[i+1]=tempoption;'); } } }

[kevin82819]

2楼，3楼 你们的代码怎么下拉菜单都显示不出内容