日常收集整理的JavaScript常用函数方法

function functionname(){这里是要执行的代码}

functiocutstr(strlen{ vatemp, icoun, patr/[^/x-/xff]/， strr""; fo(vastr.lengthi++{ i(icounle{ temstr.substr(i); i(patrn.exec(temp=null{ icounicoun els{ icounicoun } strr+temp els{ break; } } returstrr"..." }

String.prototype.replaceAlfunction(ss{ returthis.replace(neRegExp(s"gm")s) }

 String.prototype.trifunction({ vareExtraSpac/^/s*(.*?)/s+$/; returthis.replace(reExtraSpace"$") }

 functioltrim(s)returs.replace/^(/s*|　*)/"")} functiortrim(s)returs.replace/(/s*|　*)$/"")}

String.prototype.startWitfunctio(s{ returthis.indexOf(s= }

String.prototype.endWitfunctio(s{ vathis.lengts.length; retur(>&this.lastIndexOf(s=d) }

functioHtmlEncode(text{ returtext.replace(/&/g'&').replace(//"/g'"').replace(/</g'<').replace(/>/g'>') }

Date.prototype.Formafunction(formatStr{ vastformatStr; vaWee['日''一''二''三''四''五''六']; ststr.replace(/yyyy|YYYY/this.getFullYear()); ststr.replace(/yy|YY/(this.getYear((this.getYear().toString('(this.getYear()); ststr.replace(/MM/(this.getMonth((this.getMonth().toString('(this.getMonth()); ststr.replace(/M/g(this.getMonth()); ststr.replace(/w|W/gWeek[this.getDay()]); ststr.replace(/dd|DD/this.getDate(this.getDate().toString('this.getDate()); ststr.replace(/d|D/gthis.getDate()); ststr.replace(/hh|HH/this.getHours(this.getHours().toString('this.getHours()); ststr.replace(/h|H/gthis.getHours()); ststr.replace(/mm/this.getMinutes(this.getMinutes().toString('this.getMinutes()); ststr.replace(/m/gthis.getMinutes()); ststr.replace(/ss|SS/this.getSeconds(this.getSeconds().toString('this.getSeconds()); ststr.replace(/s|S/gthis.getSeconds()); returstr }

functioisDigit(value{ vapatr/^[-]*$/; i(patrn.exec(value=nul|valu=""{ returfalse els{ returtrue } }

 functiosetCookie(namevalueHours{ vaneDate(); vaoffse; vautd.getTime((d.getTimezoneOffset(); vanut(offset); vaexneDate(nd); exp.setTime(exp.getTime(Hour); document.cookinam"=escape(value";path=/;expires=exp.toGMTString(";domain=doc.com;" }

functiogetCookie(name{ vaardocument.cookie.match(neRegExp("(^)nam"=([^;]*)(;|$)")); i(ar!nullreturunescape(arr[]); returnull }

functioAddFavorite(sURLsTitle{ tr{ window.external.addFavorite(sURLsTitle) catch(e{ tr{ window.sidebar.addPanel(sTitlesURL"") catch(e{ alert("加入收藏失败，请使用Ctrl+D进行添加") } } }

functiosetHomepage({ i(document.all{ document.body.style.behavio'url(#default#homepage)'; document.body.setHomePage('http://wcboy.com') elsi(window.sidebar{ i(window.netscape{ tr{ netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect") catch(e{ alert("该操作被浏览器拒绝，如果想启用该功能，请在地址栏内输about:config,然后将signed.applets.codebase_principal_suppor值该为true") } } vaprefComponents.classes['@mozilla.org/preferences-service;'].getService(Components.interfaces.nsIPrefBranch); prefs.setCharPref('browser.startup.homepage''http://wcboy.com') } }

functioLoadStyle(url{ tr{ document.createStyleSheet(url) catch(e{ vacssLindocument.createElement('link'); cssLink.re'stylesheet'; cssLink.typ'text/css'; cssLink.hreurl; vaheadocument.getElementsByTagName('head')[]; head.appendChild(cssLink) } }

functioevalscript(s{ if(s.indexOf('<script'=-returs; va/<script[^/>]*?>([^/x]*?)<//script>/ig; vaar[]; while(arp.exec(s){ vap/<script[^/>]*?src=/"([^/>]*?)/"[^/>]*?(reload=/"/")?(?:charset=/"([/w/-]+?)/")?><//script>/i; vaarr[]; arrp.exec(arr[]); if(arr{ appendscript(arr[]''arr[]arr[]); els{ p/<script(.*?)>([^/x]+?)<//script>/i; arrp.exec(arr[]); appendscript(''arr[]arr[].indexOf('reload='!-); } } returs; }

 functiostripscript(s{ returs.replace(/<script.*?>.*?<//script>/ig''); }

functioappendscript(srctextreloadcharset{ vaihash(srtext); if(!reloa&in_array(idevalscripts)return; if(reloa&$(id){ $(id).parentNode.removeChild($(id)); } evalscripts.push(id); vascriptNoddocument.createElement("script"); scriptNode.typ"text/javascript"; scriptNode.iid; scriptNode.charsecharsecharse(BROWSER.firefodocument.characterSedocument.charset); tr{ if(src{ scriptNode.srsrc; scriptNode.onloadDonfalse; scriptNode.onloafunctio({ scriptNode.onloadDontrue; JSLOADED[src; }; scriptNode.onreadystatechangfunctio({ if((scriptNode.readyStat='loaded|scriptNode.readyStat='complete'&!scriptNode.onloadDone{ scriptNode.onloadDontrue; JSLOADED[src; } }; elsif(text){ scriptNode.textext; } document.getElementsByTagName('head')[].appendChild(scriptNode); catch(e{} }

functio$(id{ retur!inuldocument.getElementById(id); }

functioaddEventSamp(obj,evt,fn){ if(!oTarget){return;} i(obj.addEventListener{ obj.addEventListener(evtfnfalse); }elsif(obj.attachEvent){ obj.attachEvent('on'+evt,fn); }else{ oTarget["onsEvtTypefn; } }

 functiodelEvt(obj,evt,fn){ if(!obj){return;} if(obj.addEventListener){ obj.addEventListener(evt,fn,false); }elsif(oTarget.attachEvent){ obj.attachEvent("onevt,fn); }else{ obj["onevtfn; } }

Element.prototype.oElement.prototype.addEventListener; NodeList.prototype.ofunctio(eventfn{、 []['forEach'].call(thisfunctio(el{ el.on(eventfn); }); returthis; };

Element.prototype.triggefunctio(typedata{ vaevendocument.createEvent('HTMLEvents'); event.initEvent(typetruetrue); event.datdat|{}; event.eventNamtype; event.targethis; this.dispatchEvent(event); returthis; }; NodeList.prototype.triggefunctio(event{ []['forEach'].call(thisfunctio(el{ el['trigger'](event); }); returthis; };

functiogetUrlState(URL){ vaxmlhttneActiveXObject("microsoft.xmlhttp"); xmlhttp.Open("GET",URLfalse); try{ xmlhttp.Send(); }catch(e){ }finally{ varesulxmlhttp.responseText; if(result){ if(xmlhttp.Status==){ return(true); }else{ return(false); } }else{ return(false); } } }

 .functioformatCss(s){//格式化代码 s.replace(//s*([/{/}/:/;/,])/s*/g"$"); s.replace(/;/s*;/g";")//清除连续分号 s.replace(//,[/s/./#/d]*{/g"{"); s.replace(/([^/s])/{([^/s])/g"${/n/t$"); s.replace(/([^/s])/}([^/n]*)/g"$/n}/n$"); s.replace(/([^/s]);([^/s/}])/g"$;/n/t$"); returs; }

functiocompressCs(s{//压缩代码 s.replace(////*(.|/n)*?/*///g"")//删除注释 s.replace(//s*([/{/}/:/;/,])/s*/g"$"); s.replace(//,[/s/./#/d]*/{/g"{")//容错处理 s.replace(/;/s*;/g";")//清除连续分号 s.match(/^/s*(/S+(/s+/S+)*)/s*$/)//去掉首尾空白 retur(=null"s[]; }

vacurrentPageUr""; i(typeothis.hre=="undefined"{ currentPageUrdocument.location.toString().toLowerCase(); }els{ currentPageUrthis.href.toString().toLowerCase(); }

functioisMobile(){ i(typeothis._isMobil=='boolean'){ returthis._isMobile; } vascreenWidtthis.getScreenWidth(); vafixViewPortsExperimenrendererModel.runningExperiments.FixViewpor||rendererModel.runningExperiments.fixviewport; vafixViewPortsExperimentRunninfixViewPortsExperimen&(fixViewPortsExperiment.toLowerCase(=="new"); if(!fixViewPortsExperiment){ if(!this.isAppleMobileDevice()){ screenWidtscreenWidth/window.devicePixelRatio; } } vaisMobileScreenSizscreenWidt; vaisMobileUserAgenfalse; this._isMobilisMobileScreenSiz&this.isTouchScreen(); returthis._isMobile; }

functioisMobileUserAgent(){ retur(/iphone|ipod|android.*mobile|windows.*phone|blackberry.*mobile/i.test(window.navigator.userAgent.toLowerCase())); }

functioisAppleMobileDevice(){ retur(/iphone|ipod|ipad|Macintosh/i.test(navigator.userAgent.toLowerCase())); }

 functioisAndroidMobileDevice(){ retur(/android/i.test(navigator.userAgent.toLowerCase())); }

functioisTouchScreen(){ retur(('ontouchstartiwindow|window.DocumentTouc&documeninstanceoDocumentTouch); }

functioisViewportOpen({ retur!!document.getElementById('wixMobileViewport'); }

functiogetInitZoom(){ if(!this._initZoom){ vascreenWidtMath.min(screen.heightscreen.width); if(this.isAndroidMobileDevice(&!this.isNewChromeOnAndroid()){ screenWidtscreenWidth/window.devicePixelRatio; } this._initZooscreenWidt/document.body.offsetWidth; } returthis._initZoom; }

functiogetZoom(){ vascreenWidt(Math.abs(window.orientation==Math.max(screen.heightscreen.widthMath.min(screen.heightscreen.width); if(this.isAndroidMobileDevice(&!this.isNewChromeOnAndroid()){ screenWidtscreenWidth/window.devicePixelRatio; } vaFixViewPortsExperimenrendererModel.runningExperiments.FixViewpor|rendererModel.runningExperiments.fixviewport; vaFixViewPortsExperimentRunninFixViewPortsExperimen&(FixViewPortsExperimen=="New|FixViewPortsExperimen=="new"); if(FixViewPortsExperimentRunning){ returscreenWidtwindow.innerWidth; }else{ returscreenWidtdocument.body.offsetWidth; } }

functiogetScreenWidth(){ vasmallerSidMath.min(screen.widthscreen.height); vafixViewPortsExperimenrendererModel.runningExperiments.FixViewpor|rendererModel.runningExperiments.fixviewport; vafixViewPortsExperimentRunninfixViewPortsExperimen&(fixViewPortsExperiment.toLowerCase(=="new"); if(fixViewPortsExperiment){ if(this.isAndroidMobileDevice(&!this.isNewChromeOnAndroid()){ smallerSidsmallerSide/window.devicePixelRatio; } } retursmallerSide; }

functioIsURL(strUrl{ varegula/^/b(((https?|ftp):////)?[-a-z-]+(/.[-a-z-]+)*/.(?:com|edu|gov|int|mil|net|org|biz|info|name|museum|asia|coop|aero|[a-z][a-z]|(([-])|([-]/d)|(/d/d)|([-]/d)|/d))/b(//[-a-z-_:/@&?=+,.!//~%/$]*)?)$/i i(regular.test(strUrl){ returtrue; }els{ returfalse; } }getElementsByClassName .functiogetElementsByClassName(name{ vatagdocument.getElementsByTagName('*'|document.all; vael[]; fo(vatags.lengthi++{ i(tags.className{ vactags.className.split('); fo(vacs.lengthj++{ i(nam=cs[j]{ els.push(tags); break } } } } returels}

functiogetPageHeight(){ vadocumentg.bodyg.documentElementg.compatMod="BackCompat" a g.documentElement; returMath.max(f.scrollHeighta.scrollHeightd.clientHeight); }

functiogetPageScrollLeft(){ vadocument; retura.documentElement.scrollLef|a.body.scrollLeft; }

functiogetPageViewWidth(){ vadocumentd.compatMod="BackCompat" d.body d.documentElement; retura.clientWidth; }

functiogetPageWidth(){ vadocumentg.bodyg.documentElementg.compatMod="BackCompat" a g.documentElement; returMath.max(f.scrollWidtha.scrollWidthd.clientWidth); }

functiogetPageScrollTop(){ vadocument; retura.documentElement.scrollTo|a.body.scrollTop; }

functiogetPageViewHeight({ vadocumentd.compatMod="BackCompat" d.body d.documentElement; retura.clientHeight; }

functioremoveUrlPrefix(a){ a=a.replace(/：/g,":").replace(/．/g,".").replace(/／/g,"/"); while(trim(a).toLowerCase().indexOf("http://")==){ a=trim(a.replace(/http://///i,"")); } retura; }

functiouniqueId(){ vaa=Math.random,b=parseInt; returNumber(neDate()).toString()+b(*a())+b(*a())+b(*a()); }

//iCase全到半，半到全，其他不转化 functiochgCase(sStr,iCase){ if(typeosSt!"string|sStr.lengt<|!(iCas==|iCas=)){ retursStr; } vai,oRs=[],iCode; if(iCase){/*半->全*/ for(i=i<sStr.length;i+=){ iCodsStr.charCodeAt(i); if(iCod=){ iCod; }elsif(iCod){ iCod+; } oRs.push(String.fromCharCode(iCode)); } }else{/*全->半*/ for(i=i<sStr.length;i+=){ iCodsStr.charCodeAt(i); if(iCod=){ iCod; }elsif(iCod&iCod){ iCod-; } oRs.push(String.fromCharCode(iCode)); } } returoRs.join(""); }

functiocheckKey(iKey){ if(iKe=|iKe=){returtrue;}/*空格和异常*/ if(iKey>&iKe){returtrue;}/*数字*/ if(iKey>&iKe){returtrue;}/*字母*/ if(iKey>&iKe){returtrue;}/*数字键盘*/ if(iKey>&iKe){returtrue;}/*数字键盘*/ if(iKey>&iKe){returtrue;}/*符号*/ if(iKey>&iKe){returtrue;}/*符号*/ returfalse; }

 functiogetScrollXY({ returdocument.body.scrollTo{ xdocument.body.scrollLeft, ydocument.body.scrollTop }{ xdocument.documentElement.scrollLeft, ydocument.documentElement.scrollTop } }

Date.prototype.formafunction(format){ va{ "M+this.getMonth()+//month "d+this.getDate()//day "h+this.getHours()//hour "m+this.getMinutes()//minute "s+this.getSeconds()//second "q+Math.floor((this.getMonth()+)/)//quarter "Sthis.getMilliseconds(//millisecond }; if(/(y+)/.test(format)format=format.replace(RegExp.$, (this.getFullYear()+"").substr(RegExp.$.length)); for(vaio){ if(neRegExp("("+")").test(format)) formaformat.replace(RegExp.$,RegExp.$.length==o[k:(""o[k]).substr((""o[k]).length)); } returformat; } alert(neDate().format("yyyy-MM-dhh:mm:ss"));

./* .、s显示为“刚刚” .、>mi&min显示与当前时间差“XX分钟前” .、>mi&day显示与当前时间差“今XX:XX” .、>da&year显示日期“XX月XXXX:XX” .、>year显示具体日期“XXXX年XX月XXXX:XX” .*/ .functiotimeFormat(time){ vadatneDate(time), curDatneDate(), yeadate.getFullYear(), montdate.getMonth(, dadate.getDate(), houdate.getHours(), minutdate.getMinutes(), curYeacurDate.getFullYear(), curHoucurDate.getHours(), timeStr; if(yeacurYear){ timeStyea+'年'mont+'月'da+''hou+':'minute; }else{ vapastTimcurDatdate, pastpastTime/; if(pastcurHour){ timeStmont+'月'da+''hou+':'minute; }elsif(past>){ timeSt'今hou+':'minut+'分'; }else{ vapastcurDate.getMinutes(minute; if(past){ timeStpast+'分钟前'; }else{ timeSt'刚刚'; } } } returtimeStr; }

 ./针对火狐不支持offsetX/Y .functiogetOffset(e){ vatargee.target/当前触发的目标对象 eventCoord, pageCoord, offsetCoord; /计算当前触发元素到文档的距离 pageCoorgetPageCoord(target); /计算光标到文档的距离 eventCoor{ window.pageXOffsee.clientX, window.pageYOffsee.clientY }; /相减获取光标到第一个定位的父元素的坐标 offsetCoor{ eventCoord.pageCoord.X, eventCoord.pageCoord.Y }; returoffsetCoord; .} .functiogetPageCoord(element){ vacoor}; /计算从当前触发元素到根节点为止， /各offsetParen元素offsetLefoffsetTo值之和 whil(element){ coord.+element.offsetLeft; coord.+element.offsetTop; elemenelement.offsetParent; } returcoord; .}常用的正则表达式 .//正整数 ./^[-]*[-][-]*$/; .//负整数 ./^-[-]*[-][-]*$/; .//正浮点数 ./^(([-]+/.[-]*[-][-]*)|([-]*[-][-]*/.[-]+)|([-]*[-][-]*))$/; .//负浮点数 ./^(-(([-]+/.[-]*[-][-]*)|([-]*[-][-]*/.[-]+)|([-]*[-][-]*)))$/; .//浮点数 ./^(-?/d+)(/./d+)?$/; .//email地址 ./^[/w-]+(/.[/w-]+)*@[/w-]+(/.[/w-]+)+$/; .//url地址 ./^[a-zA-z]+://(/w+(-/w+)*)(/.(/w+(-/w+)*))*(/?/S*)?$/; .或：^http:////[A-Za-z-]+/.[A-Za-z-]+[//=/?%/-&_~`@[/]/':+!]*([^<>/"/"])*.//年/月/日（年-月-日、年.月.日） ./^(|)/d/d[/.]([-]|[])[/.]([-]|[][-]|[])$/; .//匹配中文字符 ./[/ue-/ufa]/; .//匹配帐号是否合法(字母开头，允许-字节，允许字母数字下划线) ./^[a-zA-Z][a-zA-Z-_]{,}$/; .//匹配空白行的正则表达式 .//n/s*/r/; .//匹配中国邮政编码 ./[-]/d{}(?!/d)/; .//匹配身份证 .//d{}|/d{}/; .//匹配国内电话号码 ./(/d{}-|/d{}-)?(/d{}|/d{})?/; .//匹配IP地址 ./(([-]/d|[-]|[]?/d/d?)/.){}([-]/d|[-]|[]?/d/d?)/; .//匹配首尾空白字符的正则表达式 ./^/s*|/s*$/; .//匹配HTML标记的正则表达式 .(/S*?)[^>]*>.*?|.*/>; .//sq语句 .^(select|drop|delete|create|update|insert).*$ .//提取信息中的网络链接 .(h|H)(r|R)(e|E)(f|F**('|")?(/w|//|//|/.)+('|"*|>)? .//提取信息中的邮件地址 ./w+([-+.]/w+)*@/w+([-.]/w+)*/./w+([-.]/w+)* .//提取信息中的图片链接 .(s|S)(r|R)(c|C**('|")?(/w|//|//|/.)+('|"*|>)? .//提取信息中I地址 .(/d+)/.(/d+)/.(/d+)/.(/d+) .//取信息中的中国手机号码 .()**/d{} .//提取信息中的中国邮政编码 .[-]{}(/d+){} .//提取信息中的浮点数（即小数） .(-?/d*)/.?/d+ .//提取信息中的任何数字 .(-?/d*)(/./d+)? .//电话区号 .^/d{,}$ .//腾Q号 .^[-]*[-][-]*.//帐号（字母开头，允-字节，允许字母数字下划线） .^[a-zA-Z][a-zA-Z-_]{,}.//中文、英文、数字及下划线 .^[/ue-/ufa_a-zA-Z-]+$返回顶部的通用方法 .functiobackTop(btnId{ vabtdocument.getElementById(btnId); vadocument.documentElement; vadocument.body; window.onscrolset; btn.style.displa"none"; btn.onclicfunction({ btn.style.displa"none"; window.onscrolnull; this.timesetInterval(function({ d.scrollTo-Math.ceil((d.scrollTob.scrollTop.); b.scrollTo-Math.ceil((d.scrollTob.scrollTop.); i((d.scrollTob.scrollTop=clearInterval(btn.timerwindow.onscrolset); }); }; functioset({ btn.style.displa(d.scrollTob.scrollTo'block'"none" } .}; .backTop('goTop');获得URL中GET参数值 ./用法：如果地址test.htm?t=&t=&t=那么能取得：GET["t"]GET["t"]GET["t"] .functioget_get(){ querystwindow.location.href.split("?") if(querystr[]){ GETquerystr[].split("&"); GE[]; for(i=;i<GETs.length;i++){ tmp_arGETs.split("=") key=tmp_arr[] GET[keytmp_arr[] } } returquerystr[]; .}打开一个窗体通用方法 .functioopenWindow(url,windowName,width,height){ vaparseInt(screen.widt.(widt.); vaparseInt(screen.heigh.(heigh.); vaisMSIE(navigator.appNam="MicrosofInterneExplorer"); i(isMSIE{ va"resizable=,location=no,scrollbars=no,width="; p+width; p+",height="; p+height; p+",left="; p+x; p+",top="; p+y; retvawindow.open(urlwindowNamep); els{ vawiwindow.open(url"ZyiisPopup""top=",left=",scrollbars=scrollbar",dialog=yes,modal=yes,width=widt",height=heigh",resizable=no); eval("trwin.resizeTo(widthheight)catch(e}"); win.focus(); } .} 提取页面代码中所有网址 vaadocument.documentElement.outerHTML.match(/(url/(|src=|href=)[/"/']*([^/"/'/(/)/</>/[/]+)[/"/'/)]*|(http:////[/w/-/.]+[^/"/'/(/)/</>/[/]+)/ig).join("/r/n").replace(/^(src=|href=|url/()[/"/']*|[/"/'/>/]*$/igm,""); alert(aa); 清除相同的数组 String.prototype.unique=function(){ vax=this.split(/[/r/n]+/); vay=''; for(vai=;i<x.length;i++){ if(!neRegExp("^"+x.replace(/([^/w])/ig,"//$")+"$","igm").test(y)){ y+=x+"/r/n" } } retury }; 按字母排序，对每行进行数组排序 functioSetSort(){ vatext=K.value.split(/[/r/n]/).sort().join("/r/n");//顺序 vatest=K.value.split(/[/r/n]/).sort().reverse().join("/r/n");//反序 K.value=K.value!=text?text:test; } 字符串反序 functioIsReverse(text){ returtext.split('').reverse().join(''); } 清除html代码中的脚本 functioclear_script(){ K.value=K.value.replace(/<script.*?>[/s/S]*?<//script>|/s+on[a-zA-Z]{,}/s?=/s?"[/s/S]*?"|/s+on[a-zA-Z]{,}/s?=/s?'[/s/S]*?'|/s+on[a-zA-Z]{,}/s?=[>]+/ig,""); } 动态执行JavaScript脚本 functiojavascript(){ try{ eval(K.value); }catch(e){ alert(e.message); } } 动态执行VBScript脚本 functiovbscript(){ try{ vascript=document.getElementById("K").value; if(script.trim()=="")return; window.execScript('OErroResumNex/n'+script+'/IErr.Number<>The/MsgBo"请输入正确的VBScript脚本!",,"脚本错误!/EnIf',"vbscript") }catch(e){ alert(e.message); } } 金额大写转换函数 functiotransform(tranvalue{ tr{ va; vadneArray("""万""亿")//大单位 vadneArray("拾""佰""仟")//小单位 vadneArray("零""壹""贰""叁""肆""伍""陆""柒""捌""玖")//整数部分用 //以下是小写转换成大写显示在合计大写的文本框//分离整数与小数 vasourcsplits(tranvalue); vanusource[]; vadisource[]; //转换整数部分 va//计小单位 va//计大单位 vasu; vast""; valesource[].length//整数的长度 fo(<leni++{ vasource[].charAt(lei)//取得某个位数上的数字 vab; i(l>{ bsource[].charAt(le)//取得某个位数前一位上的数字 } susuNumber(n); i(su!{ stdw[Number(n)].concat(str)//取得该数字对应的大写数字，并插入到str字符串的前面 i(=''su; } i(l>//在数字范围内 i(!//加小单位 i(b!{ stdw[k].concat(str); } k++; els//不加小单位，加大单位 ; vatemstr.charAt(); i(tem="万|tem="亿"//若大单位前没有数字则舍去大单位 ststr.substr(str.lengt); stdw[k].concat(str); su; } } i(=)//小单位到千则大单位进一 k++; } } //转换小数部分 vastrdi""; i(di!""{ vadig.charAt(); i(!{ strdi+dw[Number(n)"角"//加数字 } vadig.charAt(); i(!{ strdi+dw[Number(n)"分"//加数字 } } st+"元strdig; catch(e{ retur"元"; } returstr;}//拆分整数与小数functiosplits(tranvalue{ vavaluneArray(''''); temtranvalue.split("."); fo(vatemp.lengthi++{ valutemp; } returvalue;} resize的操作 (function(){ vaffunction(){ vadocument.documentElemendocument.documentElement.clientWidtdocument.body.clientWidth , ,Element.extend(document.body) ,classnamb.className; if(r){ //当窗体的宽度小于的时候执行相应的操作 }else{ //当窗体的宽度大于的时候执行相应的操作 } } if(window.addEventListener){ window.addEventListener('resize'function()fn()}); }elsif(window.attachEvent){ window.attachEvent('onresize'function()fn()}); } fn(); })(); 实现base64解码 functiobase_decode(data){ vab"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+/="; vaooohhhhbits,a,de"",tmp_ar[]; i(!datareturdata} dat+''; d{ hb.indexOf(data.charAt(i++)); hb.indexOf(data.charAt(i++)); hb.indexOf(data.charAt(i++)); hb.indexOf(data.charAt(i++)); bith<h<h<h; obit>xff; obit>xff; obitxff; i(h={ tmp_arr[ac++String.fromCharCode(o); elsi(h={ tmp_arr[ac++String.fromCharCode(oo); els{ tmp_arr[ac++String.fromCharCode(ooo); } whil(data.length); detmp_arr.join(''); deutf_decode(dec); returdec; } 实现utf8解码 .functioutf_decode(str_data){ vatmp_ar[],,a,,,;str_dat+''; whil(str_data.length{ str_data.charCodeAt(i); i({ tmp_arr[ac++String.fromCharCode(c); i++; elsi&{ str_data.charCodeAt(); tmp_arr[ac++String.fromCharCode(((<()); +; els{ str_data.charCodeAt(); str_data.charCodeAt(); tmp_arr[ac++String.fromCharCode(((<((<()); +; } } returtmp_arr.join(''); } 获取窗体可见范围的宽与高 .functiogetViewSize(){ vade=document.documentElement; vadb=document.body; vaviewW=de.clientWidth==db.clientWidtde.clientWidth; vaviewH=de.clientHeight==db.clientHeighde.clientHeight; returArray(view,viewH); } 断鼠标是否移出事件 functioisMouseOut(ehandler{ i(e.typ!='mouseout'{ returfalse; } varelte.relatedTargee.relatedTargee.typ=='mouseoute.toElemene.fromElement; whil(relt&relt!=handler{ reltreltg.parentNode; } retur(relt!=handler); } 半角转换为全角函数 .functioToDBC(str){ varesul''; for(vai=str.lengthi++){ codstr.charCodeAt(i); if(cod>&cod<){ resul+String.fromCharCode(str.charCodeAt(i); }elsi(cod=){ resul+String.fromCharCode(str.charCodeAt(i); }else{ resul+str.charAt(i); } } returresult; } 全角转换为半角函数 .functioToCDB(str){ varesul''; for(vai=str.lengthi++){ codstr.charCodeAt(i); if(cod&cod<){ resul+String.fromCharCode(str.charCodeAt(i); }elsi(cod=){ resul+String.fromCharCode(str.charCodeAt(); }else{ resul+str.charAt(i); } } returresult; }