本文实例讲述了js实现全国省份城市级联下拉菜单效果代码。分享给大家供大家参考。具体如下：
这是一个大家都知道的网页小功能，很常见，全国省份与城市级联菜单，采用Select下拉的方式选择数据，不过现在很多都Ajax了，貌似这种老形式已经过时了，不过在兼容性方面，仍然是不落后的。
运行效果截图如下：
在线演示地址如下：
http://demo.jb51.net/js/2015/js-conv-city-xl-menu-style-codes/
具体代码如下：
<!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> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>全国省份城市级联下拉菜单</title> </head> <body> <script language="javascript"> cityareaname=new Array(35); cityareacode=new Array(35); function first(preP,preC,formname,selectP,selectC) { a=0; if (selectP=='01') { a=1;tempoption=new Option('北京','01',false,true); } else { tempoption=new Option('北京','01'); } 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=='02') { a=2;tempoption=new Option('深圳','02',false,true); } else { tempoption=new Option('深圳','02'); } 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=='03') { a=3;tempoption=new Option('上海','03',false,true); } else { tempoption=new Option('上海','03'); } 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'); if (selectP=='04') { a=4;tempoption=new Option('重庆','04',false,true); } else { tempoption=new Option('重庆','04'); } eval('document.'+formname+'.'+preP+'.options[4]=tempoption;'); cityareacode[3]=new Array('0401','0402','0403','0404','0405','0406'); cityareaname[3]=new Array('渝中','江北','沙坪坝','南岸','九龙坡','大渡口'); if (selectP=='05') { a=5;tempoption=new Option('天津','05',false,true); } else { tempoption=new Option('天津','05'); } eval('document.'+formname+'.'+preP+'.options[5]=tempoption;'); cityareacode[4]=new Array('0501','0502','0503','0504','0505','0506','0507','0508','0509','0510','0511','0512','0513','0514','0515'); cityareaname[4]=new Array('和平','河北','河西','河东','南开','红桥','塘沽','汉沽','大港','东丽','西青','津南','北辰','武清','滨海'); if (selectP=='06') { a=6;tempoption=new Option('广东','06',false,true); } else { tempoption=new Option('广东','06'); } eval('document.'+formname+'.'+preP+'.options[6]=tempoption;'); cityareacode[5]=new Array('0601','0602','0603','0604','0605','0606','0607','0608','0609','0610','0611','0612','0613','0614','0615'); cityareaname[5]=new Array('广州','珠海','中山','佛山','东莞','清远','肇庆','阳江','湛江','韶关','惠州','河源','汕尾','汕头','梅州'); if (selectP=='07') { a=7;tempoption=new Option('河北','07',false,true); } else { tempoption=new Option('河北','07'); } eval('document.'+formname+'.'+preP+'.options[7]=tempoption;'); cityareacode[6]=new Array('0701','0702','0703','0704','0705','0706','0707','0708','0709','0710','0711'); cityareaname[6]=new Array('石家庄','唐山','秦皇岛','邯郸','邢台','张家口','承德','廊坊','沧州','保定','衡水'); if (selectP=='08') { a=8;tempoption=new Option('山西','08',false,true); } else { tempoption=new Option('山西','08'); } eval('document.'+formname+'.'+preP+'.options[8]=tempoption;'); cityareacode[7]=new Array('0801','0802','0803','0804','0805','0806','0807'); cityareaname[7]=new Array('太原','大同','阳泉','朔州','长治','临汾','晋城'); if (selectP=='09') { a=9;tempoption=new Option('内蒙古','09',false,true); } else { tempoption=new Option('内蒙古','09'); } eval('document.'+formname+'.'+preP+'.options[9]=tempoption;'); cityareacode[8]=new Array('0901','0902','0903','0904','0905','0906','0907','0908','0909','0910','0911'); cityareaname[8]=new Array('呼和浩特','包头','乌海','临河','东胜','集宁','锡林浩特','通辽','赤峰','海拉尔','乌兰浩特'); if (selectP=='10') { a=10;tempoption=new Option('辽宁','10',false,true); } else { tempoption=new Option('辽宁','10'); } eval('document.'+formname+'.'+preP+'.options[10]=tempoption;'); cityareacode[9]=new Array('1001','1002','1003','1004','1005','1006','1007','1008','1009','1010','1011','1012','1013','1014'); cityareaname[9]=new Array('沈阳','大连','鞍山','锦州','丹东','盘锦','铁岭','抚顺','营口','辽阳','阜新','本溪','朝阳','葫芦岛'); if (selectP=='11') { a=11;tempoption=new Option('吉林','11',false,true); } else { tempoption=new Option('吉林','11'); } eval('document.'+formname+'.'+preP+'.options[11]=tempoption;'); cityareacode[10]=new Array('1101','1102','1103','1104','1105','1106','1107','1108','1109'); cityareaname[10]=new Array('长春','吉林','四平','辽源','通化','白山','松原','白城','延边'); if (selectP=='12') { a=12;tempoption=new Option('黑龙江','12',false,true); } else { tempoption=new Option('黑龙江','12'); } eval('document.'+formname+'.'+preP+'.options[12]=tempoption;'); cityareacode[11]=new Array('1201','1202','1203','1204','1205','1206','1207','1208','1209','1210','1211','1212','1213'); cityareaname[11]=new Array('哈尔滨','齐齐哈尔','牡丹江','佳木斯','大庆','伊春','黑河','鸡西','鹤岗','双鸭山','七台河','绥化','大兴安岭'); if (selectP=='13') { a=13;tempoption=new Option('江苏','13',false,true); } else { tempoption=new Option('江苏','13'); } eval('document.'+formname+'.'+preP+'.options[13]=tempoption;'); cityareacode[12]=new Array('1301','1302','1303','1304','1305','1306','1307','1308','1309','1310','1311','1312','1313'); cityareaname[12]=new Array('南京','苏州','无锡','常州','镇江','连云港 ','扬州','徐州 ','南通','盐城','淮阴','泰州','宿迁'); if (selectP=='14') { a=14;tempoption=new Option('浙江','14',false,true); } else { tempoption=new Option('浙江','14'); } eval('document.'+formname+'.'+preP+'.options[14]=tempoption;'); cityareacode[13]=new Array('1401','1402','1403','1404','1405','1406','1407','1408','1409','1410','1411'); cityareaname[13]=new Array('杭州','湖州','丽水','温州','绍兴','舟山','嘉兴','金华','台州','衢州','宁波'); if (selectP=='15') { a=15;tempoption=new Option('安徽','15',false,true); } else { tempoption=new Option('安徽','15'); } eval('document.'+formname+'.'+preP+'.options[15]=tempoption;'); cityareacode[14]=new Array('1501','1502','1503','1504','1505','1506','1507','1508','1509','1510','1511','1512','1513','1514','1515','1516','1517'); cityareaname[14]=new Array('合肥 ','芜湖 ','蚌埠 ','滁州 ','安庆 ','六安 ','黄山 ','宣城 ','淮南 ','宿州 ','马鞍山 ','铜陵','淮北 ','阜阳 ','池州 ','巢湖 ','亳州'); if (selectP=='16') { a=16;tempoption=new Option('福建','16',false,true); } else { tempoption=new Option('福建','16'); } eval('document.'+formname+'.'+preP+'.options[16]=tempoption;'); cityareacode[15]=new Array('1601','1602','1603','1604','1605','1606','1607','1608','1609'); cityareaname[15]=new Array('福州 ','厦门 ','泉州 ','漳州 ','龙岩 ','南平 ','宁德 ','莆田 ','三明'); if (selectP=='17') { a=17;tempoption=new Option('江西','17',false,true); } else { tempoption=new Option('江西','17'); } eval('document.'+formname+'.'+preP+'.options[17]=tempoption;'); cityareacode[16]=new Array('1701','1702','1703','1704','1705','1706','1707','1708','1709','1710','1711'); cityareaname[16]=new Array('南昌','景德镇','九江','萍乡','新余','鹰潭','赣州','宜春','吉安','上饶','抚州'); if (selectP=='18') { a=18;tempoption=new Option('山东','18',false,true); } else { tempoption=new Option('山东','18'); } eval('document.'+formname+'.'+preP+'.options[18]=tempoption;'); cityareacode[17]=new Array('1801','1802','1803','1804','1805','1806','1807','1808','1809','1810','1811','1812','1813','1814','1815','1816','1817'); cityareaname[17]=new Array('济南','青岛','淄博','德州','烟台','潍坊','济宁','泰安','临沂','菏泽','威海','枣庄','日照','莱芜','聊城','滨州','东营'); if (selectP=='19') { a=19;tempoption=new Option('河南','19',false,true); } else { tempoption=new Option('河南','19'); } eval('document.'+formname+'.'+preP+'.options[19]=tempoption;'); cityareacode[18]=new Array('1901','1902','1903','1904','1905','1906','1907','1908','1909','1910','1911','1912','1913','1914','1915','1916','1917','1918'); cityareaname[18]=new Array('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','周口','驻马店','信阳','济源'); if (selectP=='20') { a=20;tempoption=new Option('湖北','20',false,true); } else { tempoption=new Option('湖北','20'); } eval('document.'+formname+'.'+preP+'.options[20]=tempoption;'); cityareacode[19]=new Array('2001','2002','2003','2004','2005','2006','2007','2008','2009','2010','2011','2012','2013','2014','2015','2016','2017'); cityareaname[19]=new Array('武汉','黄石','十堰','荆州','宜昌','襄樊','鄂州','荆门','孝感','黄冈','咸宁','恩施','随州','仙桃','天门','潜江','神农架'); if (selectP=='21') { a=21;tempoption=new Option('湖南','21',false,true); } else { tempoption=new Option('湖南','21'); } eval('document.'+formname+'.'+preP+'.options[21]=tempoption;'); cityareacode[20]=new Array('2101','2102','2103','2104','2105','2106','2107','2108','2109','2110','2111','2112','2113'); cityareaname[20]=new Array('长沙','株州','湘潭','衡阳','邵阳','岳阳','常德','郴州','益阳','永州','怀化','娄底','湘西 '); if (selectP=='22') { a=22;tempoption=new Option('广西','22',false,true); } else { tempoption=new Option('广西','22'); } eval('document.'+formname+'.'+preP+'.options[22]=tempoption;'); cityareacode[21]=new Array('2201','2202','2203','2204','2205','2206','2207','2208','2209','2210','2211','2212'); cityareaname[21]=new Array('南宁','柳州','桂林','梧州','北海','防城港','钦州','贵港','玉林','贺州','百色','河池'); if (selectP=='23') { a=23;tempoption=new Option('海南','23',false,true); } else { tempoption=new Option('海南','23'); } eval('document.'+formname+'.'+preP+'.options[23]=tempoption;'); cityareacode[22]=new Array('2301','2302','2303','2304','2305','2306','2307','2308','2309'); cityareaname[22]=new Array('海口 ','三亚','通什','琼海','琼山','文昌','万宁','东方','儋州'); if (selectP=='24') { a=24;tempoption=new Option('四川','24',false,true); } else { tempoption=new Option('四川','24'); } eval('document.'+formname+'.'+preP+'.options[24]=tempoption;'); cityareacode[23]=new Array('2401','2402','2403','2404','2405','2406','2407','2408','2409','2410','2411','2412','2413','2414','2415','2416','2417','2418','2419','2420'); cityareaname[23]=new Array('成都','自贡','攀枝花','泸州','德阳','绵阳','广元','遂宁','内江','乐山','南充 ','宜宾','广安','达川','巴中','雅安','眉山 ','阿坝 ','甘孜 ','凉山 '); if (selectP=='25') { a=25;tempoption=new Option('贵州','25',false,true); } else { tempoption=new Option('贵州','25'); } eval('document.'+formname+'.'+preP+'.options[25]=tempoption;'); cityareacode[24]=new Array('2501','2502','2503','2504','2505','2506','2507','2508','2509'); cityareaname[24]=new Array('贵阳 ','六盘水','遵义','铜仁','毕节','安顺','黔西南 ','黔东南','黔南'); if (selectP=='26') { a=26;tempoption=new Option('云南','26',false,true); } else { tempoption=new Option('云南','26'); } eval('document.'+formname+'.'+preP+'.options[26]=tempoption;'); cityareacode[25]=new Array('2601','2602','2603','2604','2605','2606','2607','2608','2609','2610','2611','2612','2613','2614','2615','2616','2617'); cityareaname[25]=new Array('昆明','东川','曲靖','玉溪','昭通','思茅','临沧','保山','丽江','文山 ','红河 ','西双版纳 ','楚雄 ','大理 ','德宏 ','怒江','迪庆'); if (selectP=='27') { a=27;tempoption=new Option('西藏','27',false,true); } else { tempoption=new Option('西藏','27'); } eval('document.'+formname+'.'+preP+'.options[27]=tempoption;'); cityareacode[26]=new Array('2701','2702','2703','2704','2705','2706','2707'); cityareaname[26]=new Array('拉萨','那曲','昌都','山南','日喀则','阿里','林芝'); if (selectP=='28') { a=28;tempoption=new Option('陕西','28',false,true); } else { tempoption=new Option('陕西','28'); } eval('document.'+formname+'.'+preP+'.options[28]=tempoption;'); cityareacode[27]=new Array('2801','2802','2803','2804','2805','2806','2807','2808','2809','2810'); cityareaname[27]=new Array('西安','铜川','宝鸡','咸阳','渭南','延安','汉中','榆林','商洛','安康'); if (selectP=='29') { a=29;tempoption=new Option('甘肃','29',false,true); } else { tempoption=new Option('甘肃','29'); } eval('document.'+formname+'.'+preP+'.options[29]=tempoption;'); cityareacode[28]=new Array('2901','2902','2903','2904','2905','2906','2907','2908','2909','2910','2911','2912','2913','2914'); cityareaname[28]=new Array('兰州','金昌','白银','天水','嘉峪关','定西','平凉','庆阳','陇南','武威','张掖','酒泉','甘南 ','临夏'); if (selectP=='30') { a=30;tempoption=new Option('青海','30',false,true); } else { tempoption=new Option('青海','30'); } eval('document.'+formname+'.'+preP+'.options[30]=tempoption;'); cityareacode[29]=new Array('3001','3002','3003','3004','3005','3006','3007','3008'); cityareaname[29]=new Array('西宁','海东',' 海北 ','黄南','海南','果洛','玉树','海西'); if (selectP=='31') { a=31;tempoption=new Option('宁夏','31',false,true); } else { tempoption=new Option('宁夏','31'); } eval('document.'+formname+'.'+preP+'.options[31]=tempoption;'); cityareacode[30]=new Array('3101','3102','3103','3104'); cityareaname[30]=new Array('银川','石嘴山','银南','固原'); if (selectP=='32') { a=32;tempoption=new Option('新疆','32',false,true); } else { tempoption=new Option('新疆','32'); } eval('document.'+formname+'.'+preP+'.options[32]=tempoption;'); cityareacode[31]=new Array('3201','3202','3203','3204','3205','3206','3207','3208','3209','3210','3211','3212','3213'); cityareaname[31]=new Array('乌鲁木齐','克拉玛依','石河子','吐鲁番','哈密','和田','阿克苏','喀什','克孜勒苏','巴音郭楞','昌吉','博尔塔拉','伊犁'); if (selectP=='33') { a=33;tempoption=new Option('香港','33',false,true); } else { tempoption=new Option('香港','33'); } eval('document.'+formname+'.'+preP+'.options[33]=tempoption;'); cityareacode[32]=new Array(); cityareaname[32]=new Array(); if (selectP=='34') { a=34;tempoption=new Option('澳门','34',false,true); } else { tempoption=new Option('澳门','34'); } eval('document.'+formname+'.'+preP+'.options[34]=tempoption;'); cityareacode[33]=new Array(); cityareaname[33]=new Array(); if (selectP=='35') { a=35;tempoption=new Option('台湾','35',false,true); } else { tempoption=new Option('台湾','35'); } eval('document.'+formname+'.'+preP+'.options[35]=tempoption;'); cityareacode[34]=new Array(); cityareaname[34]=new Array(); eval('document.'+formname+'.'+preP+'.options[a].selected=true;'); cityid=selectP; if (cityid!='0') { b=0;for (i=0;i<cityareaname[cityid-1].length;i++) { if (selectC==cityareacode[cityid-1][i]) {b=i+1;tempoption=new Option(cityareaname[cityid-1][i],cityareacode[cityid-1][i],false,true);} else tempoption=new Option(cityareaname[cityid-1][i],cityareacode[cityid-1][i]); eval('document.'+formname+'.'+preC+'.options[i+1]=tempoption;'); } eval('document.'+formname+'.'+preC+'.options[b].selected=true;'); } } 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],cityareacode[cityid-1][i]); eval('document.'+formname+'.'+preC+'.options[i+1]=tempoption;'); } } } </script> <form action="" method=post name=form1> <img src="images/w_KT.gif" height="6" width="1"><br> <table width=300 border=0 cellspacing="0" cellpadding="1" !bgcolor=#FFFDE6> <tr> <td align="right">省份：</td> <td> <select name="selectp" onChange="selectcityarea('selectp','selectc','form1');"> <option value="0" selected>不限-- </select> </td> </tr> <tr> <td align="right">县/市：</td> <td> <select name="selectc"> <option value="0" selected>不限-- </select> </td> </tr> </table> </form> <script language="javascript"> first("selectp","selectc","form1",0,0); </script> </body> </html>
希望本文所述对大家的JavaScript程序设计有所帮助。
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