㈠ 請問用什麼方式可以實現省市級聯的效果呀 省市的數據是從資料庫中查出來的
做過省市縣三級聯動的，就是並排三個下拉列表，選擇省級，則市縣2級數據清空並重新載入數據，選擇市級，則縣級數據清空並重新載入數據，最後的縣級則是實際要保存的數據。
數據使用的是國家標准行政區劃代碼，保存為一個資料庫表中，我的數據涵蓋全國所有行政區劃（到區縣一級），大約3000多條，如下所示：
110000 北京市
110100 市轄區
110101 東城區
220000 吉林省
220100 長春市
220101 市轄區
220102 南關區
格式為[aabbcc]，其中bbcc都為0則為省級aa下的各市，cc為0則為市級aabb下的區縣。
使用jquery的ajax方式從伺服器載入json數據，每次載入把省市縣三級的數據都載入進來。
當選擇了省級，ajax傳送編碼aa0000，返回數據中的省級數據始終列出各省數據；市級數據列出aabb00；縣級為空是因為還沒有選擇市級；
當選擇了市級，ajax傳送編碼aabb00，返回數據中的省級數據始終列出各省數據；市級數據列出aabb00；縣級列出aabbcc；
當選擇了縣級，就不用傳送ajax了，那就是我們想要的數據。
這思路是本人項目中實際使用的，效果很好，每次ajax從伺服器讀取的數據量很小因此響應很快。另外的思路是一次性把行政區劃數據都傳送到客戶端，在客戶端通過jquery解析處理，這也是我曾經考慮過的方法，處理要簡單的多，純數據要50k多，以數組格式大約需要60k的數據量，json格式估計100k以內，區域網肯定沒有問題，以目前的網速也可以用在互聯網上，但多少還是要影響性能的。
㈡ 省市縣三級聯動菜單，JS全國省市縣(區)聯動，怎樣連接到資料庫啊
給你一些思路：
1、省市縣的數據寫到資料庫中。每條數據會有一個父ID（上級ID）。
2、在版頁面上省變權動後，查詢市的數據以省的ID作為條件，縣也一樣，以市 的ID為條件。
第二種方法，
由於全國的這些基本上是固定的，一般變動比較少，這可以把這個數據寫到JS裡面，通過JS來實現。這個載入會快一些。這些數據可以到國家統計局的網站去下載。
㈢ ajax 省市區多級聯動（在struts2中），有人能做出個簡單的嗎
多級聯動實現：
<form action="http://www.sharejs.com" method=post name="creator" enctype="multipart/form-data">
<script language="javascript">
<!--
var where = new Array(35);
function comefrom(loca,locacity) { this.loca = loca; this.locacity = locacity; }
where[0]= new comefrom("請選擇省份名","請選擇城市名");
where[1] = new comefrom("北京","|東城|西城|崇文|宣武|朝陽|豐台|石景山|海淀|門頭溝|房山|通州|順義|昌平|大興|平谷|懷柔|密雲|延慶");
where[2] = new comefrom("上海","|黃浦|盧灣|徐匯|長寧|靜安|普陀|閘北|虹口|楊浦|閔行|寶山|嘉定|浦東|金山|松江|青浦|南匯|奉賢|崇明");
where[3] = new comefrom("天津","|和平|東麗|河東|西青|河西|津南|南開|北辰|河北|武清|紅撟|塘沽|漢沽|大港|寧河|靜海|寶坻|薊縣");
where[4] = new comefrom("重慶","|萬州|涪陵|渝中|大渡口|江北|沙坪壩|九龍坡|南岸|北碚|萬盛|雙撟|渝北|巴南|黔江|長壽|綦江|潼南|銅梁|大足|榮昌|壁山|梁平|城口|豐都|墊江|武隆|忠縣|開縣|雲陽|奉節|巫山|巫溪|石柱|秀山|酉陽|彭水|江津|合川|永川|南川");
where[5] = new comefrom("河北","|石家莊|邯鄲|邢台|保定|張家口|承德|廊坊|唐山|秦皇島|滄州|衡水");
where[6] = new comefrom("山西","|太原|大同|陽泉|長治|晉城|朔州|呂梁|忻州|晉中|臨汾|運城");
where[7] = new comefrom("內蒙古","|呼和浩特|包頭|烏海|赤峰|呼倫貝爾盟|阿拉善盟|哲里木盟|興安盟|烏蘭察布盟|錫林郭勒盟|巴彥淖爾盟|伊克昭盟");
where[8] = new comefrom("遼寧","|沈陽|大連|鞍山|撫順|本溪|丹東|錦州|營口|阜新|遼陽|盤錦|鐵嶺|朝陽|葫蘆島");
where[9] = new comefrom("吉林","|長春|吉林|四平|遼源|通化|白山|松原|白城|延邊");
where[10] = new comefrom("黑龍江","|哈爾濱|齊齊哈爾|牡丹江|佳木斯|大慶|綏化|鶴崗|雞西|黑河|雙鴨山|伊春|七台河|大興安嶺");
where[11] = new comefrom("江蘇","|南京|鎮江|蘇州|南通|揚州|鹽城|徐州|連雲港|常州|無錫|宿遷|泰州|淮安");
where[12] = new comefrom("浙江","|杭州|寧波|溫州|嘉興|湖州|紹興|金華|衢州|舟山|台州|麗水");
where[13] = new comefrom("安徽","|合肥|蕪湖|蚌埠|馬鞍山|淮北|銅陵|安慶|黃山|滁州|宿州|池州|淮南|巢湖|阜陽|六安|宣城|亳州");
where[14] = new comefrom("福建","|福州|廈門|莆田|三明|泉州|漳州|南平|龍岩|寧德");
where[15] = new comefrom("江西","|南昌市|景德鎮|九江|鷹潭|萍鄉|新餘|贛州|吉安|宜春|撫州|上饒");
where[16] = new comefrom("山東","|濟南|青島|淄博|棗庄|東營|煙台|濰坊|濟寧|泰安|威海|日照|萊蕪|臨沂|德州|聊城|濱州|菏澤");
where[17] = new comefrom("河南","|鄭州|開封|洛陽|平頂山|安陽|鶴壁|新鄉|焦作|濮陽|許昌|漯河|三門峽|南陽|商丘|信陽|周口|駐馬店|濟源");
where[18] = new comefrom("湖北","|武漢|宜昌|荊州|襄樊|黃石|荊門|黃岡|十堰|恩施|潛江|天門|仙桃|隨州|咸寧|孝感|鄂州");
where[19] = new comefrom("湖南","|長沙|常德|株洲|湘潭|衡陽|岳陽|邵陽|益陽|婁底|懷化|郴州|永州|湘西|張家界");
where[20] = new comefrom("廣東","|廣州|深圳|珠海|汕頭|東莞|中山|佛山|韶關|江門|湛江|茂名|肇慶|惠州|梅州|汕尾|河源|陽江|清遠|潮州|揭陽|雲浮");
where[21] = new comefrom("廣西","|南寧|柳州|桂林|梧州|北海|防城港|欽州|貴港|玉林|南寧地區|柳州地區|賀州|百色|河池");
where[22] = new comefrom("海南","|海口|三亞");
where[23] = new comefrom("四川","|成都|綿陽|德陽|自貢|攀枝花|廣元|內江|樂山|南充|宜賓|廣安|達川|雅安|眉山|甘孜|涼山|瀘州");
where[24] = new comefrom("貴州","|貴陽|六盤水|遵義|安順|銅仁|黔西南|畢節|黔東南|黔南");
where[25] = new comefrom("雲南","|昆明|大理|曲靖|玉溪|昭通|楚雄|紅河|文山|思茅|西雙版納|保山|德宏|麗江|怒江|迪慶|臨滄");
where[26] = new comefrom("西藏","|拉薩|日喀則|山南|林芝|昌都|阿里|那曲");
where[27] = new comefrom("陝西","|西安|寶雞|咸陽|銅川|渭南|延安|榆林|漢中|安康|商洛");
where[28] = new comefrom("甘肅","|蘭州|嘉峪關|金昌|白銀|天水|酒泉|張掖|武威|定西|隴南|平涼|慶陽|臨夏|甘南");
where[29] = new comefrom("寧夏","|銀川|石嘴山|吳忠|固原");
where[30] = new comefrom("青海","|西寧|海東|海南|海北|黃南|玉樹|果洛|海西");
where[31] = new comefrom("新疆","|烏魯木齊|石河子|克拉瑪依|伊犁|巴音郭勒|昌吉|克孜勒蘇柯爾克孜|博爾塔拉|吐魯番|哈密|喀什|和田|阿克蘇");
where[32] = new comefrom("香港","");
where[33] = new comefrom("澳門","");
where[34] = new comefrom("台灣","|台北|高雄|台中|台南|屏東|南投|雲林|新竹|彰化|苗栗|嘉義|花蓮|桃園|宜蘭|基隆|台東|金門|馬祖|澎湖");
where[35] = new comefrom("其它","|北美洲|南美洲|亞洲|非洲|歐洲|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>
<body onload="init()">
<font color=#000000><b>來自：</b>
請輸入您所在國家的具體地方。此項可選
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">不能超過12個字元（6個漢字）
</form>
㈣ 用js做省市級聯菜單，用二維數組實現，不知為何就是無法實現，求大神點撥，下面是代碼：
好，10分，值得我寫代碼了，稍等。
㈤ JS 怎樣獲得省市級聯的下拉列表值
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<!DOCTYPE HTML>
<html lang="en">
<head>
<meta http-equiv = "X-UA-Compatible" content = "IE=edge,chrome=1" />
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>test</title>
<script src="http://libs..com/jquery/1.7.0/jquery.min.js"></script>
</head>
<body>
<select id="parentUnit">
<option>----請選擇街道----</option>
<option value="<a href="https://www..com/s?wd=%E9%BE%99%E5%9F%8E%E8%A1%97%E9%81%93&tn=44039180_cpr&fenlei=-CEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-" target="_blank" class="-highlight">龍城街道</a>v"><a href="https://www..com/s?wd=%E9%BE%99%E5%9F%8E%E8%A1%97%E9%81%93&tn=44039180_cpr&fenlei=-CEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-" target="_blank" class="-highlight">龍城街道</a>t</option>
<option value="<a href="https://www..com/s?wd=%E6%A8%
㈥ 省份與城市的二級級聯 用javascript實現
給你一個三級聯動，09年最新版的
<!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=utf-8" />
<title>無標題文檔</title>
</head>
<body>
<select id="province" onchange="setCity(this.value);getArea()" name="province">
<option value="" selected="selected">請選擇</option>
</select>
<select id="city" onchange="setCounty(this.value);getArea()" name="city" style="display:;">
<option value="" selected="selected">請選擇</option>
</select>
<select id="county" name="county" onchange="getArea()" style="display:;">
<option value="" selected="selected">請選擇</option>
</select>
<input type="text" name="area" id="area" value="222426" onchange="setArea();"/>
<input type="button" value="轉" onclick="setArea();" />
<script type="text/javascript">
var areaData = "110000|北京市,110100|市轄區,110101|東城區,110102|西城區,110103|崇文區,110104|宣武區,110105|朝陽區,110106|豐台區,110107|石景山區,110108|海淀區,110109|門頭溝區,110111|房山區,110112|通州區,110113|順義區,110114|昌平區,110115|大興區,110116|懷柔區,110117|平谷區,110200|縣,110228|密雲縣,110229|延慶縣,120000|天津市,120100|市轄區,120101|和平區,120102|河東區,120103|河西區,120104|南開區,120105|河北區,120106|紅橋區,120107|塘沽區,120108|漢沽區,120109|大港區,120110|東麗區,120111|西青區,120112|津南區,120113|北辰區,120114|武清區,120115|寶坻區,120200|縣,120221|寧河縣,120223|靜海縣,120225|薊縣,130000|河北省,130100|石家莊市,130101|市轄區,130102|長安區,130103|橋東區,130104|橋西區,130105|新華區,130107|井陘礦區,130108|裕華區,130121|井陘縣,130123|正定縣,130124|欒城縣,130125|行唐縣,130126|靈壽縣,130127|高邑縣,130128|深澤縣,130129|贊皇縣,130130|無極縣,130131|平山縣,130132|元氏縣,130133|趙縣,130181|辛集市,130182|藁城市,130183|晉州市,130184|新樂市,130185|鹿泉市,130200|唐山市,130201|市轄區,130202|路南區,130203|路北區,130204|古冶區,130205|開平區,130207|豐南區,130208|豐潤區,130223|灤縣,130224|灤南縣,130225|樂亭縣,130227|遷西縣,130229|玉田縣,130230|唐海縣,130281|遵化市,130283|遷安市,130300|秦皇島市,130301|市轄區,130302|海港區,130303|山海關區,130304|北戴河區,130321|青龍滿族自治縣,130322|昌黎縣,130323|撫寧縣,130324|盧龍縣,130400|邯鄲市,130401|市轄區,130402|邯山區,130403|叢台區,130404|復興區,130406|峰峰礦區,130421|邯鄲縣,130423|臨漳縣,130424|成安縣,130425|大名縣,130426|涉縣,130427|磁縣,130428|肥鄉縣,130429|永年縣,130430|邱縣,130431|雞澤縣,130432|廣平縣,130433|館陶縣,130434|魏縣,130435|曲周縣,130481|武安市,130500|邢台市,130501|市轄區,130502|橋東區,130503|橋西區,130521|邢台縣,130522|臨城縣,130523|內丘縣,130524|柏鄉縣,130525|隆堯縣,130526|任縣,130527|南和縣,130528|寧晉縣,130529|巨鹿縣,130530|新河縣,130531|廣宗縣,130532|平鄉縣,130533|威縣,130534|清河縣,130535|臨西縣,130581|南宮市,130582|沙河市,130600|保定市,130601|市轄區,130602|新市區,130603|北市區,130604|南市區,130621|滿城縣,130622|清苑縣,130623|淶水縣,130624|阜平縣,130625|徐水縣,130626|定興縣,130627|唐縣,130628|高陽縣,130629|容城縣,130630|淶源縣,130631|望都縣,130632|安新縣,130633|易縣,130634|曲陽縣,130635|蠡縣,130636|順平縣,130637|博野縣,130638|雄縣,130681|涿州市,130682|定州市,130683|安國市,130684|高碑店市,130700|張家口市,130701|市轄區,130702|橋東區,130703|橋西區,130705|宣化區,130706|下花園區,130721|宣化縣,130722|張北縣,130723|康保縣,130724|沽源縣,130725|尚義縣,130726|蔚縣,130727|陽原縣,130728|懷安縣,130729|萬全縣,130730|懷來縣,130731|涿鹿縣,130732|赤城縣,130733|崇禮縣,130800|承德市,130801|市轄區,130802|雙橋區,130803|雙灤區,130804|鷹手營子礦區,130821|承德縣,130822|興隆縣,130823|平泉縣,130824|灤平縣,130825|隆化縣,130826|豐寧滿族自治縣,130827|寬城滿族自治縣,130828|圍場滿族蒙古族自治縣,130900|滄州市,130901|市轄區,130902|新華區,130903|運河區,130921|滄縣,130922|青縣,130923|東光縣,130924|海興縣,130925|鹽山縣,130926|肅寧縣,130927|南皮縣,130928|吳橋縣,130929|獻縣,130930|孟村回族自治縣,130981|泊頭市,130982|任丘市,130983|黃驊市,130984|河間市,131000|廊坊市,131001|市轄區,131002|安次區,131003|廣陽區,131022|固安縣,131023|永清縣,131024|香河縣,131025|大城縣,131026|文安縣,131028|大廠回族自治縣,131081|霸州市,131082|三河市,131100|衡水市,131101|市轄區,131102|桃城區,131121|棗強縣,131122|武邑縣,131123|武強縣,131124|饒陽縣,131125|安平縣,131126|故城縣,131127|景縣,131128|阜城縣,131181|冀州市,131182|深州市,140000|山西省,140100|太原市,140101|市轄區,140105|小店區,140106|迎澤區,140107|杏花嶺區,140108|尖草坪區,140109|萬柏林區,140110|晉源區,140121|清徐縣,140122|陽曲縣,140123|婁煩縣,140181|古交市,140200|大同市,140201|市轄區,140202|城區,140203|礦區,140211|南郊區,140212|新榮區,140221|陽高縣,140222|天鎮縣,140223|廣靈縣,140224|靈丘縣,140225|渾源縣,140226|左雲縣,140227|大同縣,140300|陽泉市,140301|市轄區,140302|城區,140303|礦區,140311|郊區,140321|平定縣,140322|盂縣,140400|長治市,140401|市轄區,140402|城區,140411|郊區,140421|長治縣,140423|襄垣縣,140424|屯留縣,140425|平順縣,140426|黎城縣,140427|壺關縣,140428|長子縣,140429|武鄉縣,140430|沁縣,140431|沁源縣,140481|潞城市,140500|晉城市,140501|市轄區,140502|城區,140521|沁水縣,140522|陽城縣,140524|陵川縣,140525|澤州縣,140581|高平市,140600|朔州市,140601|市轄區,140602|朔城區,140603|平魯區,140621|山陰縣,140622|應縣,140623|右玉縣,140624|懷仁縣,140700|晉中市,140701|市轄區,140702|榆次區,140721|榆社縣,140722|左權縣,140723|和順縣,140724|昔陽縣,140725|壽陽縣,140726|太谷縣,140727|祁縣,140728|平遙縣,140729|靈石縣,140781|介休市,140800|運城市,140801|市轄區,140802|鹽湖區,140821|臨猗縣,140822|萬榮縣,140823|聞喜縣,140824|稷山縣,140825|新絳縣,140826|絳縣,140827|垣曲縣,140828|夏縣,140829|平陸縣,140830|芮城縣,140881|永濟市,140882|河津市,140900|忻州市,140901|市轄區,140902|忻府區,140921|定襄縣,140922|五台縣,140923|代縣,140924|繁峙縣,140925|寧武縣,140926|靜樂縣,140927|神池縣,140928|五寨縣,140929|岢嵐縣,140930|河曲縣,140931|保德縣,140932|偏關縣,140981|原平市,141000|臨汾市,141001|市轄區,141002|堯都區,11|曲沃縣,12|翼城縣,13|襄汾縣,14|洪洞縣,15|古縣,16|安澤縣,17|浮山縣,18|吉縣,19|鄉寧縣,141030|大寧縣,141031|隰縣,141032|永和縣,141033|蒲縣,141034|汾西縣,141081|侯馬市,141082|霍州市,141100|呂梁市,141101|市轄區,141102|離石區,141121|文水縣,141122|交城縣,141123|興縣,141124|臨縣,141125|柳林縣,141126|石樓縣,141127|嵐縣,141128|方山縣,141129|中陽縣,141130|交口縣,141181|孝義市,141182|汾陽市,150000|內蒙古自治區,150100|呼和浩特市,150101|市轄區,150102|新城區,150103|回民區,150104|玉泉區,150105|賽罕區,150121|土默特左旗,150122|托克托縣,150123|和林格爾縣,150124|清水河縣,150125|武川縣,150200|包頭市,150201|市轄區,150202|東河區,150203|昆都侖區,150204|青山區,150205|石拐區,150206|白雲礦區,150207|九原區,150221|土默特右旗,150222|固陽縣,150223|達爾罕茂明安聯合旗,150300|烏海市,150301|市轄區,150302|海勃灣區,150303|海南區,150304|烏達區,150400|赤峰市,150401|市轄區,150402|紅山區,150403|元寶山區,150404|松山區,150421|阿魯科爾沁旗,150422|巴林左旗,150423|巴林右旗,150424|林西縣,150425|克什克騰旗,150426|翁牛特旗,150428|喀喇沁旗,150429|寧城縣,150430|敖漢旗,150500|通遼市,150501|市轄區,150502|科爾沁區,150521|科爾沁左翼中旗,150522|科爾沁左翼後旗,150523|開魯縣,150524|庫倫旗,150525|奈曼旗,150526|扎魯特旗,150581|霍林郭勒市,150600|鄂爾多斯市,150601|市轄區,150602|東勝區,150621|達拉特旗,150622|准格爾旗,150623|鄂托克前旗,150624|鄂托克旗,150625|杭錦旗,150626|烏審旗,150627|伊金霍洛旗,150700|呼倫貝爾市,150701|市轄區,150702|海拉爾區,150721|阿榮旗,150722|莫力達瓦達斡爾族自治旗,150723|鄂倫春自治旗,150724|鄂溫克族自治旗,150725|陳巴爾虎旗,150726|新巴爾虎左旗,150727|新巴爾虎右旗,150781|滿洲里市,150782|牙克石市,150783|扎蘭屯市,150784|額爾古納市,150785|根河市,150800|巴彥淖爾市,150801|市轄區,150802|臨河區,150821|五原縣,150822|磴口縣,150823|烏拉特前旗,150824|烏拉特中旗,150825|烏拉特後旗,150826|杭錦後旗,150900|烏蘭察布市,150901|市轄區,150902|集寧區,150921|卓資縣,150922|化德縣,150923|商都縣,150924|興和縣,150925|涼城縣,150926|察哈爾右翼前旗,150927|察哈爾右翼中旗,150928|察哈爾右翼後旗,150929|四子王旗,150981|豐鎮市,152200|興安盟,152201|烏蘭浩特市,152202|阿爾山市,152221|科爾沁右翼前旗,152222|科爾沁右翼中旗,152223|扎賚特旗,152224|突泉縣,152500|錫林郭勒盟,152501|二連浩特市,152502|錫林浩特市,152522|阿巴嘎旗,152523|蘇尼特左旗,152524|蘇尼特右旗,152525|東烏珠穆沁旗,152526|西烏珠穆沁旗,152527|太僕寺旗,152528|鑲黃旗,152529|正鑲白旗,152530|正藍旗,152531|多倫縣,152900|阿拉善盟,152921|阿拉善左旗,152922|阿拉善右旗,152923|額濟納旗,210000|遼寧省,210100|沈陽市,210101|市轄區,210102|和平區,210103|瀋河區,210104|大東區,210105|皇姑區,210106|鐵西區,210111|蘇家屯區,210112|東陵區,210113|沈北新區,210114|於洪區,210122|遼中縣,210123|康平縣,210124|法庫縣,210181|新民市,210200|大連市,210201|市轄區,210202|中山區,210203|西崗區,210204|沙河口區,210211|甘井子區,210212|旅順口區,210213|金州區,210224|長海縣,210281|瓦房店市,210282|普蘭店市,210283|庄河市,210300|鞍山市,210301|市轄區,210302|鐵東區,210303|鐵西區,210304|立山區,210311|千山區,210321|台安縣,210323|岫岩滿族自治縣,210381|海城市,210400|撫順市,210401|市轄區,210402|新撫區,210403|東洲區,210404|望花區,210411|順城區,210421|撫順縣,210422|新賓滿族自治縣,210423|清原滿族自治縣,210500|本溪市,210501|市轄區,210502|平山區,210503|溪湖區,210504|明山區,210505|南芬區,210521|本溪滿族自治縣,210522|桓仁滿族自治縣,210600|丹東市,210601|市轄區,210602|元寶區,210603|振興區,210604|振安區,210624|寬甸滿族自治縣,210681|東港市,210682|鳳城市,210700|錦州市,210701|市轄區,210702|古塔區,210703|凌河區,210711|太和區,210726|黑山縣,210727|義縣,210781|凌海市,210782|北鎮市,210800|營口市,210801|市轄區,210802|站前區,210803|西市區,210804|鮁魚圈區,210811|老邊區,210881|蓋州市,210882|大石橋市,210900|阜新市,210901|市轄區,210902|海州區,210903|新邱區,210904|太平區,210905|清河門區,210911|細河區,210921|阜新蒙古族自治縣,210922|彰武縣,211000|遼陽市,211001|市轄區,211002|白塔區,211003|文聖區,211004|宏偉區,211005|弓長嶺區,211011|太子河區,211021|遼陽縣,211081|燈塔市,211100|盤錦市,211101|市轄區,211102|雙檯子區,211103|興隆台區,211121|大窪縣,211122|盤山縣,211200|鐵嶺市,211201|市轄區,211202|銀州區,211204|清河區,211221|鐵嶺縣,211223|西豐縣,211224|昌圖縣,211281|調兵山市,211282|開原市,00|朝陽市,01|市轄區,02|雙塔區,03|龍城區,21|朝陽縣,22|建平縣,24|喀喇沁左翼蒙古族自治縣,81|北票市,82|凌源市,211400|葫蘆島市,211401|市轄區,211402|連山區,211403|龍港區,211404|南票區,211421|綏中縣,211422|建昌縣,211481|興城市,220000|吉林省,220100|長春市,220101|市轄區,220102|南關區,220103|寬城區,220104|朝陽區,220105|二道區,220106|綠園區,220112|雙陽區,220122|農安縣,220181|九台市,220182|榆樹市,220183|德惠市,220200|吉林市,220201|市轄區,220202|昌邑區,220203|龍潭區,220204|船營區,220211|豐滿區,220221|永吉縣,220281|蛟河市,220282|樺甸市,220283|舒蘭市,220284|磐石市,220300|四平市,220301|市轄區,220302|鐵西區,220303|鐵東區,220322|梨樹縣,220323|伊通滿族自治縣,220381|公主嶺市,220382|雙遼市,220400|遼源市,220401|市轄區,220402|龍山區,220403|西安區,220421|東豐縣,220422|東遼縣,220500|通化市,220501|市轄區,220502|東昌區,220503|二道江區,220521|通化縣,220523|輝南縣,220524|柳河縣,220581|梅河口市,220582|集安市,220600|白山市,220601|市轄區,220602|八道江區,220605|江源區,220621|撫松縣,220622|靖宇縣,220623|長白朝鮮族自治縣,220681|臨江市,220700|松原市,220701|市轄區,220702|寧江區,220721|前郭爾羅斯蒙古族自治縣,220722|長嶺縣,220723|乾安縣,220724|扶余縣,220800|白城市,220801|市轄區,220802|洮北區,220821|鎮賚縣,220822|通榆縣,220881|洮南市,220882|大安市,222400|延邊朝鮮族自治州,222401|延吉市,222402|圖們市,222403|敦化市,222404|琿春市,222405|龍井市,222406|和龍市,222424|汪清縣,222426|安圖縣,230000|黑龍江省,230100|哈爾濱市,230101|市轄區,230102|道里區,230103|南崗區,230104|道外區,230108|平房區,230109|松北區,230110|香坊區,230111|呼蘭區,230112|阿城區,230123|依蘭縣,230124|方正縣,230125|賓縣,230126|巴彥縣,230127|木蘭縣,230128|通河縣,230129|延壽縣,230182|雙城市,230183|尚志市,230184|五常市,230200|齊齊哈爾市,230201|市轄區,230202|龍沙區,230203|建華區,230204|鐵鋒區,230205|昂昂溪區,230206|富拉爾基區,230207|碾子山區,230208|梅里斯達斡爾族區,230221|龍江縣,230223|依安縣,230224|泰來縣,230225|甘南縣,230227|富裕縣,230229|克山縣,230230|克東縣,230231|拜泉縣,230281|訥河市,230300|雞西市,230301|市轄區,230302|雞冠區,230303|恆山區,230304|滴道區,230305|梨樹區,230306|城子河區,230307|麻山區,230321|雞東縣,230381|虎林市,230382|密山市,230400|鶴崗市,230401|市轄區,230402|向陽區,230403|工農區,230404|南山區,230405|興安區,230406|東山區,230407|興山區,230421|蘿北縣,230422|綏濱縣,230500|雙鴨山市,230501|市轄區,230502|尖山區,230503|嶺東區,230505|四方台區,230506|寶山區,230521|集賢縣,230522|友誼縣,230523|寶清縣,230524|饒河縣,230600|大慶市,230601|市轄區,230602|薩爾圖區,230603|龍鳳區,230604|讓胡路區,230605|紅崗區,230606|大同區,230621|肇州縣,230622|肇源縣,230623|林甸縣,230624|杜爾伯特蒙古族自治縣,230700|伊春市,230701|市轄區,230702|伊春區,230703|南岔區,230704|友好區,230705|西林區,230706|翠巒區,230707|新青區,230708|美溪區,230709|金山屯區,230710|五營區,230711|烏馬河區,230712|湯旺河區,230713|帶嶺區,230714|烏伊嶺區,230715|紅星區,230716|上甘嶺區,230722|嘉蔭縣,230781|鐵力市,230800|佳木斯市,230801|市轄區,230803|向陽區,230804|前進區,230805|東風區,230811|郊區,230822|樺南縣,230826|樺川縣,230828|湯原縣,230833|撫遠縣,230881|同江市,230882|富錦市,230900|七台河市,230901|市轄區,230902|新興區,230903|桃山區,230904|茄子河區,230921|勃利縣,231000|牡丹江市,231001|市轄區,231002|東安區,231003|陽明區,231004|愛民區,231005|西安區,231024|東寧縣,231025|林口縣,231081|綏芬河市,231083|海林市,231084|寧安市,231085|穆棱市,231100|黑河市,231101|市轄區,231102|愛輝區,231121|嫩江縣,231123|遜克縣,231124|孫吳縣,231181|北安市,231182|五大連池市,231200|綏化市,231201|市轄區,231202|北林區,231221|望奎縣,231222|蘭西縣,231223|青岡縣,231224|慶安縣,231225|明水縣,231226|綏棱縣,231281|安達市,231282|肇東市,231283|海倫市,232700|大興安嶺地區,232721|呼瑪縣,232722|塔河縣,232723|漠河縣,310000|上海市,310100|市轄區,310101|黃浦區,310103|盧灣區,310104|徐匯區,310105|長寧區,310106|靜安區,310107|普陀區,310108|閘北區,310109|虹口區,310110|楊浦區,310112|閔行區,310113|寶山區,310114|嘉定區,310115|浦東新區,310116|金山區,310117|松江區,310118|青浦區,310119|南匯區,310120|奉賢區,310200|縣,310230|崇明縣,320000|江蘇省,320100|南京市,320101|市轄區,320102|玄武區,320103|白下區,320104|秦淮區,320105|建鄴區,320106|鼓樓區,320107|下關區,320111|浦口區,320113|棲霞區,320114|雨花台區,320115|江寧區,320116|六合區,320124|溧水縣,320125|高淳縣,320200|無錫市,320201|市轄區,320202|崇安區,320203|南長區,320204|北塘區,320205|錫山區,320206|惠山區,320211|濱湖區,320281|江陰市,320282|宜興市,320300|徐州市,320301|市轄區,320302|鼓樓區,320303|雲龍區,320304|九里區,320305|賈汪區,320311|泉山區,320321|豐縣,320322|沛縣,320323|銅山縣,320324|睢寧縣,320381|新沂市,320382|邳州市,320400|常州市,320401|市轄區,320402|天寧區,320404|鍾樓區,320405|戚墅堰區,320411|新北區,320412|武進區,320481|溧陽市,320482|金壇市,320500|蘇州市,320501|市轄區,320502|滄浪區,320503|平江區,320504|金閶區,320505|虎丘區,320506|吳中區,320507|相城區,320581|常熟市,320582|張家港市,320583|崑山市,320584|吳江市,320585|太倉市,320600|南通市,320601|市轄區,320602|崇川區,320611|港閘區,320621|海安縣,320623|如東縣,320681|啟東市,320682|如皋市,320683|通州市,320684|海門市,320700|連雲港市,320701|市轄區,320703|連雲區,320705|新浦區,320706|海州區,320721|贛榆縣,320722|東海縣,320723|灌雲縣,320724|灌南縣,320800|淮安市,320801|市轄區,320802|清河區,320803|楚州區,320804|淮陰區,320811|清浦區,320826|漣水縣,320829|洪澤縣,320830|盱眙縣,320831|金湖縣,320900|鹽城市,320901|市轄區,320902|亭湖區,320903|鹽都區,320921|響水縣,320922|濱海縣,320923|阜寧縣,320924|射陽縣,320925|建湖縣,320981|東台市,320982|大豐市,321000|揚州市,321001|市轄區,321002|廣陵區,321003|邗江區,321011|維揚區,321023|寶應縣,321081|儀征市,321084|高郵市,321088|江都市,321100|鎮江市,321101|市轄區,321102|京口區,321111|潤州區,321112|丹徒區,321181|丹陽市,321182|揚中市,321183|句容市,321200|泰州市,321201|市轄區,321202|海陵區,321203|高港區,321281|興化市,321282|靖江市,321283|泰興市,321284|姜堰市,321300|宿遷市,321301|市轄區,321302|宿城區,321311|宿豫區,321322|沭陽縣,321323|泗陽縣,321324|泗洪縣,330000|浙江省,330100|杭州市,330101|市轄區,330102|上城區,330103|下城區,330104|江干區,330105|拱墅區,330106|西湖區,330108|濱江區,330109|蕭山區,330110|餘杭區,330122|桐廬縣,330127|淳安縣,330182|建德市,330183|富陽市,330185|臨安市,330200|寧波市,330201|市轄區,330203|海曙區,330204|江東區,330205|江北區,330206|北侖區,330211|鎮海區,330212|鄞州區,330225|象山縣,330226|寧海縣,330281|餘姚市,330282|慈溪市,330283|奉化市,330300|溫州市,330301|市轄區,330302|鹿城區,330303|龍灣區,330304|甌海區,330322|洞頭縣,330324|永嘉縣,330326|平陽縣,330327|蒼南縣,330328|文成縣,330329|泰順縣,330381|瑞安市,330382|樂清市,330400|嘉興市,330401|市轄區,330402|南湖區,330411|秀洲區,330421|嘉善縣,330424|海鹽縣,330481|海寧市,330482|平湖市,330483|桐鄉市,330500|湖州市,330501|市轄區,330502|吳興區,330503|南潯區,330521|德清縣,330522|長興縣,330523|安吉縣,330600|紹興市,330601|市轄區,330602|越城區,330621|紹興縣,330624|新昌縣,330681|諸暨市,330682|上虞市,330683|嵊州市,330700|金華市,330701|市轄區,330702|婺城區,330703|金東區,330723|武義縣,330726|浦江縣,330727|磐安縣,330781|蘭溪市,330782|義烏市,330783|東陽市,330784|永康市,330800|衢州市,330801|市轄區,330802|柯城區,330803|衢江區,330822|常山縣,330824|開化縣,330825|龍游縣,330881|江山市,330900|舟山市,330901|市轄區,330902|定海區,330903|普陀區,330921|岱山縣,330922|嵊泗縣,331000|台州市,331001|市轄區,331002|椒江區,331003|黃岩區,331004|路橋區,331021|玉環縣,331022|三門縣,331023|天台縣,331024|仙居縣,331081|溫嶺市,331082|臨海市,331100|麗水市,331101|市轄區,331102|蓮都區,331121|青田縣,331122|縉雲縣,331123|遂昌縣,331124|松陽縣,331125|雲和縣,331126|慶元縣,331127|景寧畲族自治縣,331181|龍泉市,340000|安徽省,340100|合肥市,340101|市轄區,340102|瑤海區,340103|廬陽區,340104|蜀山區,340111|包河區,340121|長豐縣,340122|肥東縣,340123|肥西縣,340200|蕪湖市,340201|市轄區,340202|鏡湖區,340203|弋江區,340207|鳩江區,340208|三山區,340221|蕪湖縣,340222|繁昌縣,340223|南陵縣,340300|蚌埠市,340301|市轄區,340302|龍子湖區,340303|蚌山區,340304|禹會區,340311|淮上區,340321|懷遠縣,340322|五河縣,340323|固鎮縣,340400|淮南市,340401|市轄區,340402|大通區,340403|田家庵區,340404|謝家集區,340405|八公山區,340406|潘集區,340421|鳳台縣,340500|馬鞍山市,340501|市轄區,340502|金家莊區,340503|花山區,340504|雨山區,340521|當塗縣,340600|淮北市,340601|市轄區,340602|杜集區,340603|相山區,340604|烈山區,340621|濉溪縣,340700|銅陵市,340701|市轄區,340702|銅官山區,340703|獅子山區,340711|郊區,340721|銅陵縣,340800|安慶市,340801|市轄區,340802|迎江區,340803|大觀區,340811|宜秀區,340822|懷寧縣,340823|樅陽縣,340824|潛山縣,340825|太湖縣,340826|宿松縣,340827|望江縣,340828|岳西縣,340881|桐城市,341000|黃山市,341001|市轄區,341002|屯溪區,341003|黃山區,341004|徽州區,31|歙縣,32|休寧縣,33|黟縣,34|祁門縣,341100|滁州市,341101|市轄區,341102|琅琊區,341103|南譙區,341122|來安縣,341124|全椒縣,341125|定遠縣,341126|鳳陽縣,341181|天長市,341182|明光市,341200|阜陽市,341201|市轄區,341202|潁州區,341203|潁東區,341204|潁泉區,341221|臨泉縣,341222|太和縣,341225|阜南縣,341226|潁上縣,341282|界首市,341300|宿州市,341301|市轄區,341302|埇橋區,341321|碭山縣,341322|蕭縣,341323|靈璧縣,341324|泗縣,341400|巢湖
㈦ 從網上下載了個級聯菜單選擇城市的JS 發現獲取到的是城市代碼 怎麼獲取城市名
a","b","c","d"];
arr[1]=["c++","oracle","sql","js"];數組下標為0的有"a","b","c","d";
數組下標為1的有"c++","oracle","sql","js"，
var i=document.form1.selterm.selectedIndex-1;這句話其實跟op=new Option(arr[i][j],arr[i][j]);有關，舉個例子，選擇回1學期的時候，document.form1.selterm.selectedIndex為1，-1之後為0，然後答找到arr[0]，也就是["a","b","c","d"]），然後new出一個Option(arr[0][j],arr[0][j]);（一個option包含顯示的內容和value值。)在清空之後，select下面是空的，必須加一個請選擇的option填充，其實把下標修改一下，arr[1]=["a","b","c","d"];
arr[2]=["c++","oracle","sql","js"];這時候var i=document.form1.selterm.selectedIndex就可以了，不需要減1了，不知道你是否明白意思了
另外,虛機團上產品團購,超級便宜