JS實(shí)現(xiàn)的Select三級(jí)下拉菜單代碼

更新時(shí)間：2015年08月20日 11:08:36 作者：佚名

這篇文章主要介紹了JS實(shí)現(xiàn)的Select三級(jí)下拉菜單,涉及javascript動(dòng)態(tài)創(chuàng)建下拉列表的技巧,非常具有實(shí)用價(jià)值,需要的朋友可以參考下

本文實(shí)例講述了JS實(shí)現(xiàn)的Select三級(jí)下拉菜單。分享給大家供大家參考。具體如下：

這里使用js實(shí)現(xiàn)Select三級(jí)下拉菜單，比如全國(guó)省市城市選擇、數(shù)碼類產(chǎn)品分類、人才類別選擇等，都比較具有代表性，在表單中容易使用Select下拉列表菜單供用戶選擇，當(dāng)然，自己用還是需要稍微改動(dòng)的，比如至少菜單內(nèi)容要改成自己需要的，其它的好說。

運(yùn)行效果如下圖所示：

在線演示地址如下：

http://demo.jb51.net/js/2015/js-3-select-menu-codes/

具體代碼如下：

<html>
<head>
<title>三級(jí)下拉菜單(通用版)</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body>
<SCRIPT LANGUAGE="JavaScript">
function CreateSelect(_FormName,_SName,_SValue,_Ds,_AllOptionStr,ShowType)
{
 if (_FormName=="")
  _FormName = "all"
 var _DsArr = _Ds.split("|")
 var _Ds1,_Ds2,_Ds3
 var _Ds1 = _DsArr[0]
 var _Ds2 = (_DsArr.length>1)?_DsArr[1]:_DsArr[0]
 var _Ds3 = (_DsArr.length>2)?_DsArr[2]:_DsArr[0]
 var _SNameArr = _SName.split("|")
 var _SName1,_SName2,_SName3
 var _SName1 = _SNameArr[0]
 var _SName2 = (_SNameArr.length>1)?_SNameArr[1]:_SNameArr[0]
 var _SName3 = (_SNameArr.length>2)?_SNameArr[2]:_SNameArr[0]
 var _SValueArr = _SValue.split("|")
 var _SValue1,_SValue2,_SValue3
 var _SValue1 = _SValueArr[0]
 var _SValue2 = (_SValueArr.length>1)?_SValueArr[1]:_SValueArr[0]
 var _SValue3 = (_SValueArr.length>2)?_SValueArr[2]:_SValueArr[0]
 if (ShowType==3){
  _AllOptionStr = _AllOptionStr.replace(/\(\(/ig,"\(\("+_Ds3+"\^")
  _AllOptionStr = _AllOptionStr.replace(/\{\{/ig,"\{\{"+_Ds2+"\(\("+_Ds3+"\*\*")
 }
 else if(ShowType==2){
  _AllOptionStr = _AllOptionStr.replace(/\{\{/ig,"\{\{"+_Ds2+"\(\("+_Ds3+"\*\*")
 }
 else if(ShowType==1){
  _AllOptionStr = _AllOptionStr.replace(/\(\(/ig,"\(\("+_Ds3+"\^")
 }
 var AllStr = _Ds1 + "{{"+ _Ds2 + "(("+ _Ds3 +"||"+_AllOptionStr
 var _AR0 = AllStr.split("||");
 document.writeln("<select name=\"" + _SName1 + "\" size=\"1\" onChange=\""+_SName1+"redirect(this.options.selectedIndex)\">");
 for (var i1 = 0;i1 < _AR0.length;i1++)
 {
  var Area1Str = _AR0[i1];
  var _AR10 = Area1Str.split("{{");
  var _AR11 = _AR10[0].split("@");
  var Tstr1 = _AR11[0];
  var Vstr1 = (_AR11.length==2)?_AR11[1]:_AR11[0]
  document.writeln("<option value=\""+Vstr1+"\">"+Tstr1+"<\/option>");
 }
 document.writeln("<\/select>");
 document.writeln("<select name=\"" + _SName2 + "\" size=\"1\" onChange=\""+_SName1+"redirect1(this.options.selectedIndex)\">");
 var _AR111 = _Ds2.split("@");
 var Tstr11 = _AR111[0];
 var Vstr11 = (_AR111.length==2)?_AR111[1]:_AR111[0];
 document.writeln("<option value=\""+Vstr11+"\">"+Tstr11+"<\/option>");
 document.writeln("<\/select>");
 document.writeln("<select name=\"" + _SName3 + "\" size=\"1\">");
 var _AR222 = _Ds3.split("@");
 var Tstr22 = _AR222[0];
 var Vstr22 = (_AR222.length==2)?_AR222[1]:_AR222[0];
 document.writeln("<option value=\""+Vstr22+"\">"+Tstr22+"<\/option>");
 document.writeln("<\/select>");
 document.writeln("<S"+"CRIPT LANGUAGE=\"JavaScript\" defer>");
 document.writeln("<!--");
 document.writeln("var "+_SName1+"NewAllStr = \""+ AllStr +"\"");
 document.writeln("var "+_SName1+"_AR0 = "+_SName1+"NewAllStr.split(\"||\");");
 document.writeln("var "+_SName1+"groups=document."+ _FormName +"." + _SName1 + ".options.length;");
 document.writeln("var "+_SName1+"group=new Array("+_SName1+"groups)");
 document.writeln("for (i=0; i<"+_SName1+"groups; i++){");
 document.writeln(" "+_SName1+"group[i]=new Array();");
 document.writeln("}");
 document.writeln("for (var i1 = 0;i1 < "+_SName1+"_AR0.length;i1++){");
 document.writeln(" var Area1Str = "+_SName1+"_AR0[i1];");
 document.writeln(" var _AR10 = Area1Str.split(\"{{\");");
 document.writeln(" var _AR12 = _AR10[1].split(\"**\");");
 document.writeln(" for (var i2 = 0;i2 < _AR12.length;i2++){");
 document.writeln("  var Area2Str = _AR12[i2];");
 document.writeln("  var _AR20 = Area2Str.split(\"((\");");
 document.writeln("  var _AR211 = _AR20[0].split(\"@\");");
 document.writeln("  var Tstr2 = _AR211[0];");
 document.writeln("  var Vstr2 = (_AR211.length==2)?_AR211[1]:_AR211[0];");
 document.writeln("  "+_SName1+"group[i1][i2]=new Option(Tstr2,Vstr2);");
 document.writeln(" }");
 document.writeln("}");
 document.writeln("var "+_SName1+"temp = document."+ _FormName +"." + _SName2);
 document.writeln("function "+_SName1+"redirect(x){");
 document.writeln(" for (m="+_SName1+"temp.options.length-1;m>0;m--)");
 document.writeln(" "+_SName1+"temp.options[m]=null;");
 document.writeln(" for (i=0;i<"+_SName1+"group[x].length;i++){");
 document.writeln("  "+_SName1+"temp.options[i]=new Option("+_SName1+"group[x][i].text,"+_SName1+"group[x][i].value);");
 document.writeln(" }");
 document.writeln(" "+_SName1+"temp.options[0].selected=true");
 document.writeln(" "+_SName1+"redirect1(0)");
 document.writeln("}");
 document.writeln("var "+_SName1+"Group2s=document."+ _FormName +"." + _SName2 + ".options.length;");
 document.writeln("var "+_SName1+"Group2=new Array("+_SName1+"groups);");
 document.writeln("for (i=0; i<"+_SName1+"groups; i++){");
 document.writeln(" "+_SName1+"Group2[i]=new Array("+_SName1+"group[i].length)");
 document.writeln(" for (j=0; j<"+_SName1+"group[i].length; j++){");
 document.writeln("  "+_SName1+"Group2[i][j]=new Array()");
 document.writeln(" }");
 document.writeln("}");
 document.writeln("for (var i1 = 0;i1 < "+_SName1+"_AR0.length;i1++){");
 document.writeln(" var Area1Str = "+_SName1+"_AR0[i1]");
 document.writeln(" var _AR10 = Area1Str.split(\"{{\");");
 document.writeln(" var _AR12 = _AR10[1].split(\"**\");");
 document.writeln(" for (var i2 = 0;i2 < _AR12.length;i2++){");
 document.writeln("  var Area2Str = _AR12[i2]");
 document.writeln("  var _AR20 = Area2Str.split(\"((\");");
 document.writeln("  _AR212 = _AR20[1].split(\"^\");");
 document.writeln("  for (var i3 = 0;i3 < _AR212.length;i3++){");
 document.writeln("   Area3Str = _AR212[i3]");
 document.writeln("   _AR3 = Area3Str.split(\"@\");");
 document.writeln("   Tstr3 = _AR3[0]");
 document.writeln("   Vstr3 = (_AR3.length==2)?_AR3[1]:_AR3[0]");
 document.writeln("   "+_SName1+"Group2[i1][i2][i3]=new Option(Tstr3,Vstr3);");
 document.writeln("  }");
 document.writeln(" }");
 document.writeln("}");
 document.writeln("var "+_SName1+"temp1=document."+ _FormName +"." + _SName3 + "");
 document.writeln("function "+_SName1+"redirect1(y){");
 document.writeln(" for (m="+_SName1+"temp1.options.length-1;m>0;m--)");
 document.writeln(" "+_SName1+"temp1.options[m]=null");
 document.writeln(" for (i=0;i<"+_SName1+"Group2[document."+ _FormName +"." + _SName1 + ".options.selectedIndex][y].length;i++){");
 document.writeln("  "+_SName1+"temp1.options[i]=new Option("+_SName1+"Group2[document."+ _FormName +"." + _SName1 + ".options.selectedIndex][y][i].text," + _SName1 + "Group2[document."+ _FormName +"." + _SName1 + ".options.selectedIndex][y][i].value)");
 document.writeln(" }");
 document.writeln(" "+_SName1+"temp1.options[0].selected=true");
 document.writeln("}");
 document.writeln("\/\/-->");
 document.writeln("<\/script>");
 document.writeln("<s"+"cript language=\"JavaScript\">");
 document.writeln("<!--");
 document.writeln("function "+_SName1+"SetValue(){");
 document.writeln(" try{");
 document.writeln("  if (\""+_SValue1+"\"!=\"\"){");
 document.writeln("   document."+ _FormName +"."+_SName1+".value=\""+_SValue1+"\"");
 document.writeln("   "+_SName1+"redirect(document."+ _FormName +"."+_SName1+".options.selectedIndex);");
 document.writeln("   if (\""+_SValue2+"\"!=\"\"){");
 document.writeln("    document."+ _FormName +"."+_SName2+".value=\""+_SValue2+"\"");
 document.writeln("    "+_SName1+"redirect1(document."+ _FormName +"."+_SName2+".options.selectedIndex)");
 document.writeln("    if (\""+_SValue3+"\"!=\"\")");
 document.writeln("     document."+ _FormName +"."+_SName3+".value=\""+_SValue3+"\"");
 document.writeln("   }");
 document.writeln("  }");
 document.writeln(" }");
 document.writeln(" catch(e){");
 document.writeln(" }");
 document.writeln("}");
 document.writeln("window.attachEvent(\"onload\","+_SName1+"SetValue)");
 document.writeln("\/\/-->");
 document.writeln("<\/script>");
}
</script>
<SCRIPT LANGUAGE="JavaScript">
<!--
var AllStr1 = ""
+"東北地區(qū){{"
 +"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^七臺(tái)河^大興安嶺"
 +"**吉林((長(zhǎng)春^吉林^四平^遼源^通化^白山^松原^白城^延邊"
 +"**遼寧((沈陽(yáng)^大連^鞍山^撫順^本溪^丹東^錦州^營(yíng)口^阜新^遼陽(yáng)^盤錦^鐵嶺^朝陽(yáng)^葫蘆島"
+"||華北地區(qū){{"
 +"北京((東城^西城^崇文^宣武^朝陽(yáng)^豐臺(tái)^石景山^海淀^門頭溝^房山^通州^順義^昌平^大興^平谷^懷柔^密云^延慶"
 +"**天津((和平^東麗^河?xùn)|^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"
 +"**山東((濟(jì)南^青島^淄博^棗莊^東營(yíng)^煙臺(tái)^濰坊^濟(jì)寧^泰安^威海^日照^萊蕪^臨沂^德州^聊城^濱州^菏澤"
 +"**河北((石家莊^邯鄲^邢臺(tái)^保定^張家口^承德^廊坊^唐山^秦皇島^滄州^衡水"
 +"**河南((鄭州^開封^洛陽(yáng)^平頂山^安陽(yáng)^鶴壁^新鄉(xiāng)^焦作^濮陽(yáng)^許昌^漯河^三門峽^南陽(yáng)^商丘^信陽(yáng)^周口^駐馬店^濟(jì)源"
 +"**山西((太原^大同^陽(yáng)泉^長(zhǎng)治^晉城^朔州^呂梁^忻州^晉中^臨汾^運(yùn)城"
 +"**內(nèi)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"
+"||華中地區(qū){{"
 +"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"
 +"**湖南((長(zhǎng)沙^常德^株洲^湘潭^衡陽(yáng)^岳陽(yáng)^邵陽(yáng)^益陽(yáng)^婁底^懷化^郴州^永州^湘西^張家界"
+"||華南地區(qū){{"
 +"廣東((廣州^深圳^珠海^汕頭^東莞^中山^佛山^韶關(guān)^江門^湛江^茂名^肇慶^惠州^梅州^汕尾^河源^陽(yáng)江^清遠(yuǎn)^潮州^揭陽(yáng)^云浮"
 +"**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(qū)^柳州地區(qū)^賀州^百色^河池"
 +"**福建((福州^廈門^莆田^三明^泉州^漳州^南平^龍巖^寧德"
 +"**海南((海口^三亞"
+"||西南地區(qū){{"
 +"四川((成都^綿陽(yáng)^德陽(yáng)^自貢^攀枝花^廣元^內(nèi)江^樂山^南充^宜賓^廣安^達(dá)川^雅安^眉山^甘孜^涼山^瀘州"
 +"**重慶((萬(wàn)州^涪陵^渝中^大渡口^江北^沙坪壩^九龍坡^南岸^北碚^萬(wàn)盛^雙撟^渝北^巴南^黔江^長(zhǎng)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^云陽(yáng)^奉節(jié)^巫山^巫溪^石柱^秀山^酉陽(yáng)^彭水^江津^合川^永川^南川"
 +"**貴州((貴陽(yáng)^六盤水^遵義^安順^銅仁^黔西南^畢節(jié)^黔東南^黔南"
 +"**云南((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"
 +"**西藏((拉薩^日喀則^山南^林芝^昌都^阿里^那曲"
+"||西北地區(qū){{"
 +"陜西((西安^寶雞^咸陽(yáng)^銅川^渭南^延安^榆林^漢中^安康^商洛"
 +"**甘肅((蘭州^嘉峪關(guān)^金昌^白銀^天水^酒泉^張掖^武威^定西^隴南^平?jīng)鯺慶陽(yáng)^臨夏^甘南"
 +"**寧夏((銀川^石嘴山^吳忠^固原"
 +"**青海((西寧^海東^海南^海北^黃南^玉樹^果洛^海西"
 +"**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"
+"||華東地區(qū){{"
 +"上海((黃浦^盧灣^徐匯^長(zhǎng)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"
 +"**江蘇((南京^鎮(zhèn)江^蘇州^南通^揚(yáng)州^鹽城^徐州^連云港^常州^無錫^宿遷^泰州^淮安"
 +"**浙江((杭州^寧波^溫州^嘉興^湖州^紹興^金華^衢州^舟山^臺(tái)州^麗水"
 +"**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(yáng)^六安^宣城^亳州"
 +"**江西((南昌市^景德鎮(zhèn)^九江^鷹潭^萍鄉(xiāng)^新馀^贛州^吉安^宜春^撫州^上饒"
+"||港澳臺(tái)地區(qū){{"
 +"香港((香港"
 +"**澳門((澳門"
 +"**臺(tái)灣((臺(tái)北^高雄^臺(tái)中^臺(tái)南^屏東^南投^云林^新竹^彰化^苗栗^嘉義^花蓮^桃園^宜蘭^基隆^臺(tái)東^金門^馬祖^澎湖"
+"||其它地區(qū){{"
 +"其它((其它"
</SCRIPT>
<FORM name="HwForm">
<HR>選擇一次<br>
<SCRIPT LANGUAGE="JavaScript">
CreateSelect("","S_13|S_23|S_33","","請(qǐng)選擇地區(qū)@|請(qǐng)選擇省份@|請(qǐng)選擇城市@",AllStr1,0);
</SCRIPT>
<HR>選擇三次<br>
<SCRIPT LANGUAGE="JavaScript">
CreateSelect("HwForm","S_1|S_2|S_3","華北地區(qū)|山東|濟(jì)寧","請(qǐng)選擇地區(qū)@|請(qǐng)選擇省份@|請(qǐng)選擇城市@",AllStr1,3);
</SCRIPT>
<SCRIPT LANGUAGE="JavaScript">
<!--
var AllStr2 = ""
+"筆記本{{"
 +"IBM((R32^T40^T42"
 +"**DELL((N600^M600"
+"||數(shù)碼相機(jī){{"
 +"CANON((A75^A80^A85"
 +"**SONY((S80^S60"
</SCRIPT>
<HR>選擇二次<br><SCRIPT LANGUAGE="JavaScript">
CreateSelect("HwForm","S_11|S_21|S_31","筆記本|IBM|T42","請(qǐng)選擇分類@|請(qǐng)選擇品牌@|請(qǐng)選擇系列@",AllStr2,2);
</SCRIPT>
<HR>選擇二次<br><SCRIPT LANGUAGE="JavaScript">
CreateSelect("HwForm","S_12|S_22|S_32","","請(qǐng)選擇分類@|請(qǐng)選擇品牌@|請(qǐng)選擇系列@",AllStr2,1);
</SCRIPT>
</FORM>
</body>
</html>

希望本文所述對(duì)大家的javascript程序設(shè)計(jì)有所幫助。

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