231个常用JavaScript代码

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73种网页常用js代码

1、后退前进<input type="button" value="后退" onClick="history.go(-1)"><input type="button" value="前进" onClick="history.go( 1 );return true;">2、返回<form><input type="button" value="返回上一步"onClick="history.back(-1)"></form>3、查看源码<input type="button" name="view" value="查看源码"onClick="window.location="view-source:" +window.location.href">4、禁止查看源码<body oncontextmenu="return false"></body>5、刷新按钮一<input type="button" value="刷新按钮一" onClick="ReloadButton()"><script>function ReloadButton(){location.href="i001.htm";}</script>刷新按钮二<input type="button" value="刷新按钮二" onClick="history.go(0)">6、回首页按钮<input type="button" value="首页" onClick="HomeButton()"><script>functionHomeButton(){location.href=;}</script>7、弹出警告框<input type="button" value="弹出警告框" onClick="AlertButton()"><script>function AlertButton(){window.alert("要多多光临呀！");}</script>8、状态栏信息<input type="button" value="状态栏信息" onClick="StatusButton()"><script>function StatusButton(){window.status="要多多光临呀！";}</script>9、背景色变换<form><input type="button" value="背景色变换"onClick="BgButton()"></form><script>function BgButton(){if (document.bgColor=='#00ffff'){document.bgColor='#ffffff';}else{document.bgColor='#00ffff';}}</script>10、打开新窗口<input type="button" value="打开新窗口" onClick="NewWindow()"><script>functionNewWindow(){window.open("c01.htm","","height=240,width=340,status=no, location=no,toolbar=no,directories=no,menubar=no");}</script>11、窗口最小化<OBJECT id="min" type="application/x-oleobject"classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"><PARAMname="Command" value="Minimize"></OBJECT><buttononClick="min.Click()">窗口最小化</button>12、全屏代码<input type="BUTTON" name="FullScreen" value="全屏显示"onClick="window.open(document.location, 'butong_net', 'fullscreen')">13、关闭窗口<OBJECT id=closes type="application/x-oleobject"classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"><paramname="Command" value="Close"></object><input type="button" value="关闭窗口" onClick="closes.Click();">关闭窗口<input type=button value=关闭窗口onClick="javascript:self.close()">14、最大化<object id=bigclassid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"><param name="Command" value="Maximize"></object><input type=button value=最大化onClick=big.Click()>15、关闭输入法<input style="ime-mode:disabled" value=关闭输入法>16、链接按钮1<input type="button" value="链接按钮1"onClick="window.open('/', 'Sample','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no ,resizable=yes,copyhistory=yes,width=790,height=520,left=0,top=0')" name="input">链接按钮2<input type="BUTTON" NAME="Button" value="链接按钮2"onClick="showModalDialog('/')">链接按钮3<input type="submit" value="链接按钮3"onClick="location.href='/'">17、警告框显示源代码<BUTTON onClick=alert(document.documentElement.outerHTML)style="width:110">警告框显示源代码</BUTTON>18、点击后按钮清空<input type=button value='打印'onClick="this.style.visibility='hidden';window.print();">19、打印<input type=button value='打印' onClick="window.print();">20、打印预览<OBJECT classid="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2" height=0 id=wb name=wb width=0></OBJECT><input type=button value=打印预览onclick="wb.execwb(7,1)">21、另存为<input onClick="document.execCommand('saveas','true','常用代码.htm')" type=button value=另存为>22、点击自动复制<script>functionoCopy(obj){obj.select();js=obj.createTextRange();js.execCommand("Copy")} </script><input type="text" value="点击自动复制" onClick="oCopy(this)" size="11">23、自动选中<input value="自动选中" onFocus="this.select()" onMouseOver="this.focus()" size="11">24、打开源代码<BUTTON onClick="document.location = 'view-source:' + document.location" size="7">打开源代码</BUTTON>25、新窗口延迟打开<input type=button value=新窗口延迟打开onClick=javascript:setTimeout("window.open('/')",1 0000)>26、实现选中文本框里的前一半的内容<input type="text" value="选中文本框里的前一半的内容" size=30 onmouseover="this.select();tR=document.selection.createRange();tR.moveE nd('character',-8);tR.select();"><input type="text" value="选中部分内容，非IE可以用这个" size=30 onmouseover="this.selectionStart=this.value.length-4;this.selectionEnd=this. value.length">27、点击清空文字<input type="text" name="artist" size=14 value="点击清空文字" onmouseover=this.focus() onfocus=this.select() onclick="if(this.value=='点击清空文字')this.value=''">点击清空文字<input name=name size=11 value=点击清空文字onMouseOver=this.focus() onblur="if (this.value =='') this.value='点击清空文字'" onFocus=this.select() onClick="if (this.value=='点击清空文字') this.value=''">28、等于标题(title):<input type="text" value="" id="aa" size="20"><script>document.getElementById("aa").value=document.title;</script>29、检测IE是否脱机<input type="button" value="测试"onclick="alert(window.navigator.onLine)">30、11种刷新按钮的方法<input type=button value=刷新onClick="history.go(0)"><input type=button value=刷新onClick="location.reload()"><input type=button value=刷新onClick="location=location"><input type=button value=刷新onClick="location.assign(location)"><input type=button value=刷新onClick="document.execCommand('Refresh')"><input type=button value=刷新onClick="window.navigate(location)"><input type=button value=刷新onClick="location.replace(location)"><input type=button value=刷新onClick="window.open('自身的文件','_self')"> <input type=button value=刷新onClick=document.all.WebBrowser.ExecWB(22,1)><OBJECT classid=CLSID:8856F961-340A-11D0-A96B-00C04FD705A2height=0 id=WebBrowser width=0></OBJECT><form action="自身的文件"><input type=submit value=刷新></form><a id=a1 href="自身的文件"></a><input type=button value=刷新onClick="a1.click()">31、<a href="#" onClick=document.execCommand("open")>打开</a>32、<aonclick="window.open('i001.htm','','height=300,width=300,resizable=no,loca tion=net');" href="">打开指定大小网页</a>33、<a href="#" onClick=location.replace("view-source:"+location)>使用记事本编辑</a>34、<a href="#" onClick=document.execCommand("saveAs")>另存为</a>35、<a href="#" onClick=document.execCommand("print")>打印</a><a href="javascript:window.print();">打印</a>36、<a href=mailto:429752806@>发送E-mail</a>37、<a href="#" onClick=document.execCommand("selectAll")>全选</a>38、<a href="#" onClick=location.reload()>刷新1</a>39、<a href="#" onClick=history.go(0)>刷新2</a>40、<a href="#" onClick=location.replace("view-source:"+location)>查看源文件</a>41、<a href="#" onClick=window.open(document.location,"url","fullscreen")>全屏显示</a>42、<a href="#"onClick=window.external.showBrowserUI("PrivacySettings",null)>internet选项</a>43、<a href="#" oncontextmenu="window.open(this.href);return false;">单击右键将在新窗口中打开</a>44、<a href="#" onClick=history.go(1)>前进1</a><a href="#" onClick=history.forward()>前进2</a><a href="#" onClick=history.go(-1)>后退1</a><a href="#" onClick=history.back()>后退2</a>45、<a href="#"onClick=window.external.showBrowserUI("OrganizeFavorites",null)>整理收藏夹</a><SPAN onClick="window.external.addFavorite('/','网页特效站点')" style="CURSOR: hand" title=网页特效站点>加入收藏</SPAN><a href="#"onClick="window.external.addFavorite('/','网页特效站点')">添加到收藏夹</A><a href="javascript:window.external.AddFavorite('/', '网页特效站点')">点击加入收藏夹</a><a href="#"onmouseover="window.external.addFavorite('/','网页特效站点')" target="_self" >鼠标感应收藏本站</a><a href="#"onmouseover="this.style.behavior='url(#default#homepage)';this.setHomeP age('/js/');" target="_self">鼠标感应设为首页</a>46、<a href="javascript:window.close()">关闭窗口</a><a href="#" onClick=window.close();return false)>关闭窗口</a><a href="#" onClick=setTimeout(window.close(),3000)>3秒关闭本窗口</a><script>function shutwin(){window.close();return;}</script><a href="javascript:shutwin();">关闭本窗口</a>47、<SPAN onClick="varstrHref=window.location.href;this.style.behavior='url(#default#homepage)';t his.setHomePage('/');" style="CURSOR: hand">设为首页</SPAN>48、等于标题栏:<script>document.write(document.title);</script>49、<a href="javascript:void(0);"onClick='window.external.AddFavorite(location.href, document.title);'>收藏本页</a><a href="javascript:window.external.AddFavorite(document.location.href, document.title)">收藏本页</a><a href=javascript:window.external.addChannel("typhoon.cdf")>加入频道</a>50、<a href="i003.htm" onclick="return false;"ondblclick="window.open('i003.htm');">双击打开链接</a>51、<style>#close a:hover{background:url(javascript:window.opener=0;window.close());}</style><div id=close><a href="">关闭窗口</a></div>52、<A HREF="javascript:void(0)" onMouseover="alert('对不起,禁止选中!')">链接禁止</A>53、滚动条在左侧,将<html>改为<HTML DIR="RTL">54、网页半透明<body style="filter:Alpha(Opacity=50)">55、随机选择背景色<body><script>document.body.style.background=(["red","blue","pink","navy","gray","yellow" ,"green","purple"])[parseInt(Math.random()*8)];</script>56、框架页中不显示滚动条：<SCRIPT>self.moveTo(0,0)self.resizeTo(screen.availWidth,screen.availHeight)</SCRIPT>57、防止网页被框架<SCRIPT LANGUAGE=JAVASCRIPT>if (top.location !== self.location) {top.location=self.location;}</SCRIPT>58、永远都会带着框架<script language="javascript"></script>59、窗口自动最大化<script language="JavaScript"></script>60、打开窗口自动最大化<OBJECT classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11" onreadystatechange="if (this.readyState==4) this.Click();" VIEWASTEXT><PARAM name="Command" value="Maximize"></OBJECT>61、爽眼闪屏代码<script>var color = new Array;color[1] = "black";color[2] = "white";for(x = 0; x <3; x++){document.bgColor = color[x];if(x == 2){x = 0;}}</script>62、不能被另存为<noscript><iframe src=*.html></iframe></noscript>63、汉字字库调用<script>for(i=19968;i<40870;i++)document.write(String.fromCharCode(i));</script>64、显示现在时间的脚本<script language=vbscript>document.write now</script>65、显示最后修改时间的脚本<script>document.write(stModified)</script>66、按下F12键,直接返回首页<script>function look(){if(event.keyCode==123){document.location.href=/}}if(document.onkeydown==null){document.onkeydown=look}</script>67、端口检测<img src="http://www.winliuxq/zza.jpg" onload="alert('端口可用')" onerror="alert('端口禁止')"...>68、无法最小化的窗口<body onblur='self.focus();'>69、链接点外部css文件<style>@import url("ie.css");</style>70、内嵌式框架-网页中调用另外网页：<object type="text/x-scriptlet" width="600" height="1000"data="/"></object>71、刷新改变窗口大小<OBJECT classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11" onreadystatechange="if (this.readyState==4) this.Click();" VIEWASTEXT><PARAM name="Command" value="Maximize"></OBJECT>72、JavaScript实现网页竖虚线<script>hei=120;d1=2;d2=2;cou=Math.floor(hei/(d1+d2)); document.write('<table cellspacing=0 cellpadding=0 width=1height='+hei+'>');for(i=0;i<cou;i++){document.write('<tr><td height='+d2+'><tr><td height='+d1+' bgcolor=333333>')}</script></table>73、js翻页<script>document.write("<ahref="+location.href.replace(/\.html/g,"_2.html")+">2</a>");</script>。

常用js代码-常用JS代码整理

//檢查時間是否合法(Format: HHMMSS). function validateTime(theStr){ (theStr.length!=6){ (false); } { (theStr \"240000\"){ (true); } var h = theStr.sub(0,2); var m = theStr.sub(2,4); var s = theStr.sub(4,6); (isInt(h)false||isInt(m)false||isInt(s)false){ (false); } (h.length < 2){ (false);} (!isBetween(h,0,23)){ (false);} (!isBetween(m,0,59)){ (false);} (!isBetween(s,0,59)){ (false);} true; } } //檢查str包含漢字時最大長度不大于maxLen function ChineseLenLimit( str, maxLen){ var Strs = str; var strlength=0; var i; for ( i=0;i<str.length;i) { (str.charCodeAt(i)>=1000) strlength 2; strlength 1; } ( strlength > maxLen ){ false; }
} ( isInt( str_f ) false ){ //alert(strMsg); false; } ( isInt( str_b ) false ){ //alert(strMsg); false; } ( dot != dot_last ){ //alert(strMsg); false; } (dot0 || dot_last0){ //alert(strMsg); false; } (str_f.length>i){ //alert(strMsg); false; } (dot!=-1 && str_b.length>j){ //alert(strMsg); false; } true; } //檢查日期格式Format: 99999999) function judgeDateFormat(dateStr){ var re,r; re = /\\d{8}/; r = dateStr.match(re); (r); } //檢查時間格式(Format: 999999)

58项经典的JS代码

end if
%>
13. 取得控件的绝对位置
//javascript
<script language="javascript">
function getIE(e){
var t=e.offsetTop;
var l=e.offsetLeft;
while(e=e.offsetParent){
for each ob in Request.ServerVariables
Response.Write "<TR><TD>"&ob&"</TD><TD>"&Request.ServerVariables(ob)&"</TD></TR>"
Const adOpenStatic = 3 静态游标，只是数据的一个快照，用户对记录说做的修改，增加或删除记录都不会反映到记录集中。支持向前或向后移动
Const adLockReadOnly = 1 锁定类型，默认的，只读，不能作任何修改
Const adLockPessimistic = 2 当编辑时立即锁定记录，最安全的方式
}
cc("12/23/2002",2)
</script>
24. 选择了哪一个Radio
<HTML><script language="vbscript">
function checkme()
for each ob in radio1
if ob.checked then window.alert ob.value

常用JS代码大全

常用JS代码大全事件源对象event.srcElement.tagNameevent.srcElement.type捕获释放event.srcElement.setCapture();event.srcElement.releaseCapture();事件按键event.keyCodeevent.shiftKeyevent.altKeyevent.ctrlKey事件返回值event.returnValue鼠标位置event.xevent.y窗体活动元素document.activeElement绑定事件document.captureEvents(Event.KEYDOWN);访问窗体元素document.all("txt").focus();document.all("txt").select();窗体命令document.execCommand窗体COOKIE document.cookie菜单事件document.oncontextmenu创建元素document.createElement("SPAN");根据鼠标获得元素：document.elementFromPoint(event.x,event.y).tagName=="TD document.elementFromPoint(event.x,event.y).appendChild(ms)窗体图片document.images[索引]窗体事件绑定document.onmousedown=scrollwindow;元素document.窗体.elements[索引]对象绑定事件document.all.xxx.detachEvent('onclick',a);插件数目navigator.plugins取变量类型typeof($js_libpath) == "undefined"下拉框下拉框.options[索引]下拉框.options.length查找对象document.getElementsByName("r1");document.getElementById(id);定时timer=setInterval('scrollwindow()',delay);clearInterval(timer);UNCODE编码escape() ,unescape父对象obj.parentElement(dhtml)obj.parentNode(dom)交换表的行TableID.moveRow(2,1)替换CSS document.all.csss.href = "a.css";并排显示display:inline隐藏焦点hidefocus=true根据宽度换行style="word-break:break-all"自动刷新<meta. HTTP-EQUIV="refresh" C>简单邮件<a href="[email=***********?subject=ccc&body=xxxyyy]mailto:***********?subject=ccc&bod y=xxxyyy[/email]">快速转到位置obj.scrollIntoView(true)锚<a name="first"><a href="#first">anchors</a>网页传递参数location.search();可编辑obj.contenteditable=true执行菜单命令obj.execCommand双字节字符/[^\x00-\xff]/汉字/[\u4e00-\u9fa5]/让英文字符串超出表格宽度自动换行word-wrap: break-word; word-break: break-all;透明背景<IFRAME. src="1.htm" width=300 height=180 allowtransparency></iframe>获得style内容obj.style.cssTextHTML标签document.documentElement.innerHTML第一个style标签document.styleSheets[0]style标签里的第一个样式document.styleSheets[0].rules[0]防止点击空链接时，页面往往重置到页首端。

100句javascript一句话代码(简短常用代码集合,js开发必备的小程序集)

31.复选按钮在JS中判断是否选中:document.forms[0].checkThis.checked (checked属性代表为是否选中返回TRUE或FALSE)
32.单选按钮组(单选按钮的名称必须相同):取单选按钮组的长度document.forms[0].groupName.length
70.添加到收藏夹:external.AddFavorite(””,”jaskdlf”);
71.JS中遇到脚本错误时不做任何操作:window.onerror = doNothing; 指定错误句柄的语法为:window.onerror = handleError;
58.innerTEXT的值和上面的一样,只不过不会把< em >这种标记显示出来.
59.contentEditable可设置元素是否可被修改,isContentEditable返回是否可修改的状态.
60.isDisabled判断是否为禁止状态.disabled设置禁止状态
61.length取得长度,返回整型数值
67.取出该元素在页面中出现的数量:document.all.tags(”div(或其它HTML标记符)”).length
68.JS中分为两种窗体输出:模态和非模态.window.showModaldialog(),window.showModeless()
69.状态栏文字的设置:window.status=’文字’,默认的状态栏文字设置:window.defaultStatus = ‘文字.’;
52.JS的内建对象有:Array,Boolean,Date,Error,EvalError,Function,Math,Number,Object,RangeError,ReferenceError,RegExp,String,SyntaxError,TypeError,URIError

一些常用javascript代码

一些常用javascript代码(转)转自：/yuanyeweber1/blog/item/484df050ea16da858d5430ef.html一些比较简单的javascript：function get_time() /**获取当前时间**/{var date=new Date();var year="",month="",day="",week="",hour="",minute="",second="";year=date.getYear();month=add_zero(date.getMonth()+1);day=add_zero(date.getDate());week=date.getDay();switch (date.getDay()) {case 0:val="星期天";breakcase 1:val="星期一";breakcase 2:val="星期二";breakcase 3:val="星期三";breakcase 4:val="星期四";breakcase 5:val="星期五";breakcase 6:val="星期六";break}hour=add_zero(date.getHours());minute=add_zero(date.getMinutes());second=add_zero(date.getSeconds());timetable.innerText=" "+year+"年"+month+"月"+day+"日"+hour+":"+minute+":"+secon d+" "+val;}1．让文字不停地滚动＜MARQUEE＞滚动文字＜/MARQUEE＞2．记录并显示网页的最后修改时间＜script language=Javascript＞document.write("最后更新时间: " + stModified + "")＜/script＞3．关闭当前窗口＜a href="/"onClick="javascript:window.close();return false;"＞关闭窗口＜/a＞4．5秒后关闭当前页＜script language="Javascript"＞＜!--setTimeout('window.close();',5000);--＞＜/script＞5．2秒后载入指定网页＜head＞＜meta http-equiv="refresh" content="2;URL=http://你的网址"＞＜/head＞6．添加到收藏夹＜script Language="Javascript"＞function bookmarkit(){window.external.addFavorite('http://你的网址','你的网站名称')}if (document.all)document.write('＜a href="#" onClick="bookmarkit()"＞加入收藏夹＜/a＞')＜/script＞7．让超链接不显示下划线＜style type="text/css"＞＜!-a:link{text-decoration:none}a:hover{text-decoration:none}a:visited{text-decoration:none}-＞＜/style＞8．禁止鼠标右键的动作＜script Language = "Javascript"＞function click() { if (event.button==2||event.button==3){alert('禁止鼠标右键');}document.onmousedown=click // --＞＜/script＞9．设置该页为首页＜body bgcolor="#FFFFFF" text="#000000"＞＜!-- 网址：http://你的网址--＞＜a class="chlnk" style="cursor:hand" HREFonClick="this.style.behavior='url(#default#homepage)';this.setHomePage('你的网站名称);"＞＜font color="000000" size="2" face="宋体"＞设为首页＜/font＞＜/a＞＜/body＞10．节日倒计时＜script Language="Javascript"＞var timedate= new Date("December 25,2003");var times="圣诞节";var now = new Date();var date = timedate.getTime() - now.getTime();var time = Math.floor(date / (1000 * 60 * 60 * 24));if (time ＞= 0)document.write("现在离"+times+"还有: "+time +"天")＜/script＞11．单击按钮打印出当前页＜script Language="Javascript"＞＜!-- Beginif (window.print) {document.write('＜form＞'+ '＜input type=button name=print value="打印本页" '+ 'onClick="javascript:window.print()"＞＜/form＞');}// End --＞＜/script＞12．单击按钮‘另存为’当前页＜input type="button" name="Button" value="保存本页"onClick="document.all.button.ExecWB(4,1)"＞＜object id="button"width=0height=0classid="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2"＞＜embed width="0" height="0"＞＜/embed＞＜/object＞13．显示系统当前日期＜script language=Javascript＞today=new Date();function date(){this.length=date.arguments.lengthfor(var i=0;i＜this.length;i++)this[i+1]=date.arguments }var d=new date("星期日","星期一","星期二","星期三","星期四","星期五","星期六"); document.write("＜font color=##000000 style='font-size:9pt;font-family: 宋体'＞",today.getYear(),"年",today.getMonth()+1,"月",today.getDate(),"日",d[today.getDay()+1],"＜/font＞" );＜/script＞14．不同时间段显示不同问候语＜script Language="Javascript"＞＜!--var text=""; day = new Date( ); time = day.getHours( );if (( time＞=0) && (time ＜7 ))text="夜猫子，要注意身体哦！"if (( time ＞= 7 ) && (time ＜12))text="今天天气……哈哈哈，不去玩吗？"if (( time ＞= 12) && (time ＜14))text="午休时间哦，朋友一定是不习惯午睡的吧？！"if (( time ＞=14) && (time ＜18))text="下午茶的时间到了，休息一下吧！"if ((time ＞= 18) && (time ＜= 22))text="您又来了，可别和MM聊太久哦！"if ((time ＞= 22) && (time ＜24))text="很晚了哦，注意休息呀！"document.write(text)//---＞＜/script＞15．水中倒影效果＜img id="reflect" src="你自己的图片文件名" width="175" height="59"＞＜script language="Javascript"＞function f1(){setInterval("mdiv.filters.wave.phase+=10",100);}if (document.all){document.write('＜img id=mdiv src="'+document.all.reflect.src+'"style="filter:wave(strength=3,freq=3,phase=0,lightstrength=30) blur() flipv()"＞') window.onload=f1}＜/script＞16．慢慢变大的窗口＜script Language="Javascript"＞＜!--var Windowsheight=100var Windowswidth=100var numx=5function openwindow(thelocation){temploc=thelocationif(!(window.resizeTo&&document.all)&&!(window.resizeTo&&document.getElementById)) {window.open(thelocation)return}windowsize=window.open("","","scrollbars")windowsize.moveTo(0,0)windowsize.resizeTo(100,100)tenumxt()}function tenumxt(){if (Windowsheight＞=screen.availHeight-3)numx=0windowsize.resizeBy(5,numx)Windowsheight+=5Windowswidth+=5if (Windowswidth＞=screen.width-5){windowsize.location=templocWindowsheight=100Windowswidth=100numx=5return}setTimeout("tenumxt()",50)}//--＞＜/script＞＜p＞＜a href="javascript:openwindow(/smile%5F%B1%B4)"＞进入＜/a＞17．改变IE地址栏的IE图标我们要先做一个16*16的icon（图标文件），保存为index.ico。

常用JS代码大全

常用JS代码大全一、输入框禁止输入中文<input type="text" style="ime-mode:Disabled;">二、最简单的按钮作为链接方法<INPUT TYPE="submit" value="" onclick="location.href=''">三、按扭打开Web页对话框<INPUT TYPE="BUTTON" NAME="Button"V ALUE=""onclick="showModalDialog('')">四、改变IE地址栏的IE图标我们要先做一个16*16的icon（图标文件），保存为index.ico。

把这个图标文件上传到根目录下并在首页＜head ＞＜/head＞之间加上如下代码：<link REL = "Shortcut Icon" href="index.ico"><link rel="Bookmark" href="favicon.ico"> 可以在收藏夹中显示出你的图标五、让网页随意后退<a href="javascript:history.go(-X)">X</a> //把X换成你想要后退在页数//把“-”变成“+”就为前进六、关闭当前窗口<a href="/"onClick="javascript:window.close();return false;">关闭窗口</a>七、2秒后关闭当前页<script language="javascript"></script>八、2秒后载入指定网页<head><meta http-equiv="refresh" content="2;URL=http://你的网址"></head>九、添加到收藏夹<Script Language="javascript">function bookmarkit(){window.external.addFavorite('http://你的网址','你的网站名称')}if (document.all)document.write('<a href="#" onClick="bookmarkit()">加入收藏夹</a>') </Script>十、设置该页为首页<a class="chlnk" style="cursor:hand" HREFonClick="this.style.behavior='url(#default#homepage)';this.setHomePage('你的网站名称);">设为首页</a>十一、单击按钮打印出当前页<Script Language="javascript">if (window.print) {document.write('<form>'+ '<input type=button name=print value="打印本页" '+'onClick="javascript:window.print()"></form>');}</Script>十二、最小化、最大化、关闭窗口<object id=hh1classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11" ><param name="Command"value="Minimize"></object><object id=hh2classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11" ><param name="Command"value="Maximize"></object><OBJECT id=hh3classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"><PARAM NAME="Command"V ALUE="Close"></OBJECT><input type=button value=最小化onclick=hh1.Click()><input type=button value=最大化onclick=hh2.Click()><input type=button value=关闭onclick=hh3.Click()>本例适用于IE十三、让弹出窗口总是在最上面:<body onblur="this.focus();">不要滚动条?让竖条没有:<body style='overflow:scroll;overflow-y:hidden'></body>让横条没有:<body style='overflow:scroll;overflow-x:hidden'></body>两个都去掉？更简单了<body scroll="no"></body>十四、电子邮件处理提交表单<form name="form1" method="post"action="mailto:****@***.com" enctype="text/plain"><input type=submit></form>十五、在打开的子窗口刷新父窗口的代码里如何写？window.opener.location.reload()十六、如何设定打开页面的大小<body onload="top.resizeTo(300,200);">十七、环境变量本机ip<%=request.servervariables("remote_addr")%>服务器名<%=Request.ServerVariables("SERVER_NAME")%>服务器IP<%=Request.ServerVariables("LOCAL_ADDR")%>服务器端口<%=Request.ServerVariables("SERVER_PORT")%>服务器时间<%=now%>IIS版本<%=Request.ServerVariables"SERVER_SOFTWARE")%&gt ;脚本超时时间<%=Server.ScriptTimeout%>本文件路径<%=server.mappath(Request.ServerVariables("SCRIPT_NA ME"))%>服务器CPU数量<%=Request.ServerVariables("NUMBER_OF_PROCESSORS")%>服务器解译引擎<%=ScriptEngine & "/"& ScriptEngineMajorVersion&"."&ScriptEngineMinorVersion&"."& ScriptEngineBuildVersion %>服务器操作系统<%=Request.ServerVariables("OS")%>本篇文章来源于黑客基地-全球最大的中文黑客站原文链接：/tech/2009-09-22/56304_1.html1、后退前进<input type="button" value="后退"onClick="history.go(-1)"><input type="button" value="前进"onClick="history.go( 1 );return true;">2、返回<form><input type="button" value="返回上一步" onClick="history.back(-1)"></form>3、查看源码<input type="button" name="view" value="查看源码" onClick="window.location="view-source:"+window.location.href">4、禁止查看源码<body oncontextmenu="return false"></body>5、刷新按钮一<input type="button" value="刷新按钮一"onClick="ReloadButton()"><script>functionReloadButton(){location.href="i001.htm";}</script>刷新按钮二<input type="button" value="刷新按钮二"onClick="history.go(0)">6、回首页按钮<input type="button" value="首页"onClick="HomeButton()"><script>functionHomeButton(){location.href=;}</script>7、弹出警告框<input type="button" value="弹出警告框"onClick="AlertButton()"><script>function AlertButton(){window.alert("要多多光临呀！");}</script>8、状态栏信息<input type="button" value="状态栏信息"onClick="StatusButton()"><script>function StatusButton(){window.status="要多多光临呀！";}</script>9、背景色变换<form><input type="button" value="背景色变换" onClick="BgButton()"></form><script>function BgButton(){if (document.bgColor=='#00ffff'){document.bgColor='#ffffff';}else{document.bgColor='#00ffff';}}</script>10、打开新窗口<input type="button" value="打开新窗口"onClick="NewWindow()"><script>functionNewWindow(){window.open("c01.htm","","height=240,width= 340,status=no,location=no,toolbar=no,directories=no,menubar= no");}</script>11、窗口最小化<OBJECT id="min" type="application/x-oleobject"classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11">&lt ;PARAM name="Command"value="Minimize"></OBJECT><buttononClick="min.Click()">窗口最小化</button>12、全屏代码<input type="BUTTON" name="FullScreen" value="全屏显示" onClick="window.open(document.location, 'butong_net', 'fullscreen')">13、关闭窗口<OBJECT id=closes type="application/x-oleobject" classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11">&lt ;param name="Command"value="Close"></object><input type="button" value="关闭窗口" onClick="closes.Click();">关闭窗口<input type=button value=关闭窗口onClick="javascript:self.close()">14、最大化<object id=bigclassid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11" ><param name="Command"value="Maximize"></object><input type=button value=最大化onClick=big.Click()>15、关闭输入法<input style="ime-mode:disabled" value=关闭输入法>16、链接按钮1<input type="button" value="链接按钮1"onClick="window.open('/', 'Sample', 'toolbar=no,location=no,directories=no,status=no,menubar=no,s crollbars=no,resizable=yes,copyhistory=yes,width=790,height= 520,left=0,top=0')" name="input">链接按钮2<input type="BUTTON" NAME="Button" value="链接按钮2"onClick="showModalDialog('/')"> 链接按钮3<input type="submit" value="链接按钮3"onClick="location.href='/'">17、警告框显示源代码<BUTTONonClick=alert(document.documentElement.outerHTML)style="width:110">警告框显示源代码</BUTTON>18、点击后按钮清空<input type=button value='打印'onClick="this.style.visibility='hidden';window.print();">19、打印<input type=button value='打印'onClick="window.print();">20、打印预览<OBJECTclassid="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2 " height=0 id=wb name=wb width=0></OBJECT><input type=button value=打印预览onclick="wb.execwb(7,1)">21、另存为<input onClick="document.execCommand('saveas','true','常用代码.htm')" type=button value=另存为>22、点击自动复制<script>functionoCopy(obj){obj.select();js=obj.createTextRange();js.execCommand("Copy")}</script><input type="text" value="点击自动复制"onClick="oCopy(this)" size="11">23、自动选中<input value="自动选中" onFocus="this.select()" onMouseOver="this.focus()" size="11">24、打开源代码<BUTTON onClick="document.location = 'view-source:' + document.location" size="7">打开源代码</BUTTON>25、新窗口延迟打开<input type=button value=新窗口延迟打开onClick=javascript:setTimeout("window.open('http://www.winli /')",10000)>26、实现选中文本框里的前一半的内容<input type="text" value="选中文本框里的前一半的内容" size=30onmouseover="this.select();tR=document.selection.createRange();tR.moveEnd('character',-8);tR.select();"><input type="text" value="选中部分内容，非IE可以用这个" size=30onmouseover="this.selectionStart=this.value.length-4;this.select ionEnd=this.value.length">27、点击清空文字<input type="text" name="artist" size=14 value="点击清空文字" onmouseover=this.focus() onfocus=this.select()onclick="if(this.value=='点击清空文字')this.value=''">点击清空文字<input name=name size=11 value=点击清空文字onMouseOver=this.focus() onblur="if (this.value =='')this.value='点击清空文字'" onFocus=this.select() onClick="if (this.value=='点击清空文字') this.value=''">28、等于标题(title):<input type="text" value="" id="aa" size="20"><script>document.getElementById("aa").value=document .title;</script>29、检测IE是否脱机<input type="button" value="测试"onclick="alert(window.navigator.onLine)">30、11种刷新按钮的方法<input type=button value=刷新onClick="history.go(0)"> <input type=button value=刷新onClick="location.reload()"><input type=button value=刷新onClick="location=location"><input type=button value=刷新onClick="location.assign(location)"><input type=button value=刷新onClick="document.execCommand('Refresh')"><input type=button value=刷新onClick="window.navigate(location)"><input type=button value=刷新onClick="location.replace(location)"><input type=button value=刷新onClick="window.open('自身的文件','_self')"><input type=button value=刷新onClick=document.all.WebBrowser.ExecWB(22,1)><OBJECTclassid=CLSID:8856F961-340A-11D0-A96B-00C04FD705A2 height=0 id=WebBrowser width=0></OBJECT><form action="自身的文件"><input type=submit value=刷新></form><a id=a1 href="自身的文件"></a><inputtype=button value=刷新onClick="a1.click()">31、<a href="#" onClick=document.execCommand("open")>打开</a>32、<aonclick="window.open('i001.htm','','height=300,width=300,resiz able=no,location=net');" href="">打开指定大小网页</a>33、<a href="#"onClick=location.replace("view-source:"+location)>使用记事本编辑</a>34、<a href="#" onClick=document.execCommand("saveAs")>另存为</a>35、<a href="#" onClick=document.execCommand("print")>打印</a><a href="javascript:window.print();">打印</a>36、<ahref=mailto:*****************>发送E-mail</a>37、<a href="#"onClick=document.execCommand("selectAll")>全选</a>38、<a href="#" onClick=location.reload()>刷新1</a>39、<a href="#" onClick=history.go(0)>刷新2</a>40、<a href="#"onClick=location.replace("view-source:"+location)>查看源文件</a>41、<a href="#"onClick=window.open(document.location,"url","fullscreen")>全屏显示</a>42、<a href="#"onClick=window.external.showBrowserUI("PrivacySettings",nu ll)>internet选项</a>43、<a href="#" oncontextmenu="window.open(this.href);return false;">单击右键将在新窗口中打开</a>44、<a href="#" onClick=history.go(1)>前进1</a><a href="#" onClick=history.forward()>前进2</a> <a href="#" onClick=history.go(-1)>后退1</a><a href="#" onClick=history.back()>后退2</a>45、<a href="#"onClick=window.external.showBrowserUI("OrganizeFavorites", null)>整理收藏夹</a><SPANonClick="window.external.addFavorite('http://www.winliuxq.co m/','网页特效站点')" style="CURSOR: hand" title=网页特效站点>加入收藏</SPAN><a href="#"onClick="window.external.addFavorite('http://www.winliuxq.co m/','网页特效站点')">添加到收藏夹</A><ahref="javascript:window.external.AddFavorite('http://www.winl /', '网页特效站点')">点击加入收藏夹</a><a href="#"onmouseover="window.external.addFavorite('http://www.winliu /','网页特效站点')" target="_self" >鼠标感应收藏本站</a><a href="#"onmouseover="this.style.behavior='url(#default#homepage)';thi s.setHomePage('/js/');" target="_self">鼠标感应设为首页</a>46、<a href="javascript:window.close()">关闭窗口</a><a href="#" onClick=window.close();return false)>关闭窗口</a><a href="#" onClick=setTimeout(window.close(),3000)>3秒关闭本窗口</a><script>function shutwin(){window.close();return;}</script><a href="javascript:shutwin();">关闭本窗口</a>47、<SPAN onClick="varstrHref=window.location.href;this.style.behavior='url(#default# homepage)';this.setHomePage('/');" style="CURSOR: hand">设为首页</SPAN>48、等于标题栏:<script>document.write(document.title);</script>49、<a href="javascript:void(0);"onClick='window.external.AddFavorite(location.href,document.title);'>收藏本页</a><ahref="javascript:window.external.AddFavorite(document.locatio n.href, document.title)">收藏本页</a><ahref=javascript:window.external.addChannel("typhoon.cdf")>加入频道</a>50、<a href="i003.htm" onclick="return false;"ondblclick="window.open('i003.htm');">双击打开链接</a>51、<style>#close a:hover{background:url(javascript:window.opener=0;window.close());} </style><div id=close><a href="">关闭窗口</a></div>52、<A HREF="javascript:void(0)" onMouseover="alert('对不起,禁止选中!')">链接禁止</A>53、滚动条在左侧,将<html>改为<HTMLDIR="RTL">54、网页半透明<body style="filter:Alpha(Opacity=50)">55、随机选择背景色<body><script>document.body.style.background=(["red","blue","pink","navy"," gray","yellow","green","purple"])[parseInt(Math.random()*8)]; </script>56、框架页中不显示滚动条：<SCRIPT>self.moveTo(0,0)self.resizeTo(screen.availWidth,screen.availHeight)</SCRIPT>57、防止网页被框架<SCRIPT LANGUAGE=JA V ASCRIPT>if (top.location !== self.location) {top.location=self.location;}</SCRIPT>58、永远都会带着框架<script language="javascript"></script>59、窗口自动最大化<script language="JavaScript"></script>60、打开窗口自动最大化<OBJECTclassid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11" onreadystatechange="if (this.readyState==4) this.Click();" VIEWASTEXT><PARAM name="Command"value="Maximize"></OBJECT> 61、爽眼闪屏代码<script>var color = new Array;color[1] = "black";color[2] = "white";for(x = 0; x <3; x++){document.bgColor =color[x];if(x == 2){x = 0;}}</script>62、不能被另存为<noscript><iframesrc=*.html></iframe></noscript>63、汉字字库调用<script>for(i=19968;i<40870;i++)document.write(String.fromCharCo de(i));</script>64、显示现在时间的脚本<script language=vbscript>document.writenow</script>65、显示最后修改时间的脚本<script>document.write(stModified)</scrip t>66、按下F12键,直接返回首页<script>function look(){if(event.keyCode==123){document.location.href=http://www.wi /}}if(document.onkeydown==null){document.onkeydown=look}</script>67、端口检测<img src="http://www.winliuxq/zza.jpg" onload="alert('端口可用')" onerror="alert('端口禁止')"...>68、无法最小化的窗口<body onblur='self.focus();'>69、链接点外部css文件<style>@import url("ie.css");</style>70、内嵌式框架-网页中调用另外网页：<object type="text/x-scriptlet" width="600" height="1000" data="/"></object>71、刷新改变窗口大小<OBJECTclassid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11" onreadystatechange="if (this.readyState==4) this.Click();" VIEWASTEXT><PARAM name="Command"value="Maximize"></OBJECT>72、JavaScript实现网页竖虚线<script>hei=120;d1=2;d2=2;cou=Math.floor(hei/(d1+d2)); document.write('<table cellspacing=0 cellpadding=0 width=1 height='+hei+'>');for(i=0;i<cou;i++){document.write('<tr><tdheight='+d2+'><tr><td height='+d1+'bgcolor=333333>')}</script></table>73、js翻页<script>document.write("<ahref="+location.href.replace(/\.html/g,"_2.html")+">2</a >");</script>。

javascript代码大全

目录代码一1. oncontextmenu="window.event.returnvalue=false" 将彻底屏蔽鼠标右键<table border oncontextmenu=return(false)><td>no</table>可用于Table2. <body onselectstart="return false">取消选取、防止复制3. onpaste="return false" 不准粘贴4. oncopy="return false;" oncut="return false;" 防止复制5. <link rel="Shortcut Icon"href="favicon.ico">IE地址栏前换成自己的图标6. <link rel="Bookmark"href="favicon.ico">可以在收藏夹中显示出你的图标7. <input style="ime-mode:-Disabled">关闭输入法8. 永远都会带着框架<script language="javascript"></script>9. 防止被人frame<SCRIPT LANGUAGE=javascript></SCRIPT>10. 网页将不能被另存为<noscript><iframe src=*.html></iframe></noscript>11. <input type=button value=查看网页源代码onclick="window.location = `view-source:`+ /`";>12.删除时确认<a href=`javascript:if(confirm("确实要删除吗?"location="boos.asp?&areyou=删除&page=1"`>删除</a>13. 取得控件的绝对位置//javascript<script language="javascript">function getIE(E){var t=e.offsetTop;var l=e.offsetLeft;while(e=e.offsetParent){t+=e.offsetTop;l+=e.offsetLeft;}alert("top="+t+"/nleft="+l);}</script>//VBScript<script language="VBScript"></script>14. 光标是停在文本框文字的最后<script language="javascript">function cc(){var e = event.srcElement;var r =e.createTextRange();r.moveStart(`character`,e.value.length);r.collapse(true);r.select();}</script><input type=text name=text1 value="123"onfocus="cc()">15. 判断上一页的来源javascript:document.referrer16. 最小化、最大化、关闭窗口<object id=hh1 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"><param name="Command"value="Minimize"></object><object id=hh2 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"><param name="Command"value="Maximize"></object><OBJECT id=hh3 classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"><PARAM NAME="Command"value="Close"></OBJECT><input type=button value=最小化onclick=hh1.Click()><input type=button value=最大化onclick=hh2.Click()><input type=button value=关闭onclick=hh3.Click()>本例适用于IE回到目录代码二17.屏蔽功能键Shift,Alt,Ctrl<script>function look(){if(event.shiftKey)alert("禁止按Shift键!"; //可以换成ALT CTRL}document.onkeydown=look;</script>18. 网页不会被缓存<META HTTP-EQUIV="pragma"CONTENT="no-cache"><META HTTP-EQUIV="Cache-Control"CONTENT="no-cache, must-revalidate"><META HTTP-EQUIV="expires"CONTENT="Wed, 26 Feb 1997 08:21:57 GMT">或者<META HTTP-EQUIV="expires"CONTENT="0">19.怎样让表单没有凹凸感？<input type=text style="border:1 solid #000000">或<input type=text style="border-left:none; border-right:none; border-top:none; border-bottom:1 solid #000000"></textarea>20.<div><span>&<layer>的区别？<div>(division)用来定义大段的页面元素，会产生转行<span>用来定义同一行内的元素，跟<div>的唯一区别是不产生转行<layer>是ns的标记，ie不支持，相当于<div>21.让弹出窗口总是在最上面:<body onblur="this.focus();">22.不要滚动条?让竖条没有:<body style=`overflow:-Scroll;overflow-y:hidden`></body>让横条没有:<body style=`overflow:-Scroll;overflow-x:hidden`></body>两个都去掉？更简单了<body scroll="no"></body>23.怎样去掉图片链接点击后，图片周围的虚线？<a href="#"onFocus="this.blur()"><img src="logo.jpg"border=0></a>24.电子邮件处理提交表单<form name="form1"method="post"action="mailto***@***.com"enctype="text/plain"><input type=submit></form>25.在打开的子窗口刷新父窗口的代码里如何写？window.opener.location.reload()26.如何设定打开页面的大小<body onload="top.resizeTo(300,200);">打开页面的位置<body onload="top.moveBy(300,200);">27.在页面中如何加入不是满铺的背景图片,拉动页面时背景图不动<style>body{background-image:url(logo.gif);background-repeat:no-repeat;background-position:center;background-attachment:fixed}</style>28. 检查一段字符串是否全由数字组成<script language="javascript"></script>29. 获得一个窗口的大小document.body.clientWidth; document.body.clientHeight30. 怎么判断是否是字符if(/[^/x00-/xff]/g.test(s)) alert("含有汉字";else alert("全是字符";31.TEXTAREA自适应文字行数的多少<textarea rows=1 name=s1 cols=27 onpropertychange="this.style.posHeight=this.scrollHeight"> </textarea>32. 日期减去天数等于第二个日期<script language=javascript>function cc(dd,dadd){//可以加上错误处理var a = new Date(dd)a = a.valueOf()a = a - dadd * 24 * 60 * 60 * 1000a = new Date(A)alert(a.getFullYear() + "年" + (a.getMonth() + 1) + "月" + a.getDate() + "日"}cc("12/23/2002",2)</script>33. 选择了哪一个Radio<HTML><script language="vbscript">function checkme()for each ob in radio1if ob.checked then window.alert ob.valuenextend function</script><BODY><INPUT name="radio1"type="radio"value="style"checked>style<INPUT name="radio1"type="radio"value="barcode">Barcode<INPUT type="button"value="check"onclick="checkme()"></BODY></HTML>34.脚本永不出错<SCRIPT LANGUAGE="javascript"></SCRIPT>35.ENTER键可以让光标移到下一个输入框<input onkeydown="if(event.keyCode==13)event.keyCode=9">36. 检测某个网站的链接速度：把如下代码加入<body>区域中:<script language=javascript>tim=1setInterval("tim++",100)b=1var autourl=new Array()autourl[1]="/";autourl[2]=""autourl[3]="/";autourl[4]="/";autourl[5]="/";function butt(){document.write("<form name=autof>"for(var i=1;i<autourl.length;i++)document.write("<input type=text name=txt"+i+" size=10 value=测试中……>=》<input type=textname=url"+i+" size=40> =》<input type=button value=GOonclick=window.open(this.form.url"+i+".value)><br>"document.write("<input type=submit value=刷新></form>"}butt()function auto(url){document.forms[0]["url"+b].value=urlif(tim>200){document.forms[0]["txt"+b].value="链接超时"}else{document.forms[0]["txt"+b].value="时间"+tim/10+"秒"}b++}function run(){for(var i=1;i<autourl.length;i++)document.write("<imgsrc=http://"+autourl+"/"+Math.random()+" width=1 height=1onerror=auto(http://";+autourl+"`)>"}run()</script>回到目录代码三37. 各种样式的光标auto ：标准光标default ：标准箭头hand ：手形光标wait ：等待光标text ：I形光标vertical-text ：水平I形光标no-drop ：不可拖动光标not-allowed ：无效光标help ：?帮助光标all-scroll ：三角方向标move ：移动标crosshair ：十字标e-resizen-resizenw-resizew-resizes-resizese-resizesw-resize38.页面进入和退出的特效进入页面<meta http-equiv="Page-Enter"content="revealTrans(duration=x, transition=y)">推出页面<meta http-equiv="Page-Exit"content="revealTrans(duration=x, transition=y)">这个是页面被载入和调出时的一些特效。

js常用代码大全

js常⽤代码⼤全Javascript常⽤代码⼤全//打开模式对话框<body><script language=javascript>function doSelectUser(txtId){strFeatures="dialogWidth=500px;dialogHeight=360px;center=yes;middle=yes ;help=no;status=no;scroll=no";var url,strReturn;url="selUser.aspx";strReturn=window.showModalDialog(url,',strFeatures');}　doSelectUser()</script></body>//返回模式对话框的值function okbtn_onclick() {var commstr='';window.returnValue=commstr;window.close() ;} okbtn_onclick()//全屏幕打开 IE 窗⼝var winWidth=screen.availWidth ;var winHeight=screen.availHeight-20;window.open("main.aspx","surveyWindow","toolbar=no,width="+ winWidth +",height="+ winHeight +",top=0,left=0,scrollbars=yes,resizable=yes,center:yes,statusbars=yes"); //脚本中中使⽤xmlfunction initialize() {var xmlDocvar xslDocxmlDoc = new ActiveXObject('Microsoft.XMLDOM')xmlDoc.async = false;xslDoc = new ActiveXObject('Microsoft.XMLDOM')xslDoc.async = false;xmlDoc.load("tree.xml")xslDoc.load("tree.xsl")folderTree.innerHTML = xmlDoc.documentElement.transformNode(xslDoc)}⼀、验证类1、数字验证内1.1 整数1.2 ⼤于0的整数（⽤于传来的ID的验证)1.3 负整数的验证1.4 整数不能⼤于iMax1.5 整数不能⼩于iMin2、时间类2.1 短时间，形如 (13:04:06)2.2 短⽇期，形如 (2003-12-05)2.3 长时间，形如 (2003-12-05 13:04:06)2.4 只有年和⽉。

javascript常用代码大全

javascript常用代码大全非常感谢，本人最近也学习了一个多月的javascript技术，有空也会发表一些文章的。

一、取URL中的参数function getParameterByName(name) {var match = RegExp('[?&]' + name + '=([^&]*)').exec(window.location.search);return match && decodeURIComponent(match[1].replace(/\+/g, ' '));}二、正则分组var testStr="<div><img src='/a.jpg' alt='' /><span>test</span><img src='/b.jpg' alt='' /><span>TTest</span><img src='/c.png' alt='' /></div>";var reg=/<img\ssrc='(.*?)'\s+alt=''\s*\/>/g;var match=reg.exec(testStr),results=[];while(match != null){results.push(match[1]);match=reg.exec(testStr);}console.log(results);/*Array ["/a.jpg", "/b.jpg", "/c.png"]*/三、为什么parseInt(1/0,19)的结果为181/0的结果是Infinity，所以parseInt(1/0,19)等同于parseInt("Infinity",19)，而在19进制中：19进制 10进制--------------------0 01 12 23 34 45 56 67 78 89 9a 10b 11c 12d 13e 14f 15g 16h 17i 18i表示18，所以parseInt(1/0,19)的结果为18。

javascript常用代码大全-网页设计HTMLCSS

javas‎c ript‎常用代码‎大全-网页‎设计,HT‎M LCSS‎//打‎开模式对话‎框fu‎n ctio‎n dos‎e lect‎u ser(‎t xtid‎){ ‎‎‎s trfe‎a ture‎s="di‎a logw‎i dth=‎500px‎;dial‎o ghei‎g ht=3‎60px;‎c ente‎r=yes‎;midd‎l e=ye‎s ;he‎l p=n o‎;stat‎u s=no‎;scro‎l l=no‎";‎‎v ar u‎r l,st‎r retu‎r n;‎‎ u‎r l="s‎e luse‎r.asp‎x";‎‎‎‎s trre‎t urn=‎w indo‎w.sho‎w moda‎l dial‎o g(ur‎l,,st‎r feat‎u res)‎;‎}‎//‎返回模式对‎话框的值‎func‎t ion ‎o kbtn‎_oncl‎i ck()‎{‎v ar c‎o mmst‎r=; ‎‎‎‎wind‎o w.re‎t urnv‎a lue=‎c omms‎t r;‎‎ w‎i ndow‎.clos‎e() ;‎}‎全屏幕打开‎ie 窗‎口va‎r win‎w idth‎=scre‎e n.av‎a ilwi‎d th ;‎var‎winh‎e ight‎=scre‎e n.av‎a ilhe‎i ght-‎20;‎w indo‎w.ope‎n("ma‎i n.as‎p x","‎s urve‎y wind‎o w","‎t oolb‎a r=no‎,widt‎h="+ ‎w inwi‎d th ‎+",he‎i ght=‎" + wi‎n heig‎h t +‎",top‎=0,le‎f t=0,‎s crol‎l bars‎=yes,‎r esiz‎a ble=‎y es,c‎e nter‎:yes,‎s tatu‎s bars‎=yes"‎); b‎r eak ‎//脚本‎中中使用x‎m lf‎u ncti‎o n in‎i tial‎i ze()‎{‎var ‎x mldo‎c‎v ar x‎s ldoc‎‎ xml‎d oc =‎new ‎a ctiv‎e xobj‎e ct(m‎i cros‎o ft.x‎m ldom‎)‎x mldo‎c.asy‎n c = ‎f alse‎;‎xs‎l doc ‎= new‎acti‎v exob‎j ect(‎m icro‎s oft.‎x mldo‎m)‎xsld‎o c.as‎y nc =‎fals‎e;‎xm‎l doc.‎l oad(‎"tree‎.xml"‎)‎x sldo‎c.loa‎d("tr‎e e.xs‎l")‎‎fo‎l dert‎r ee.i‎n nerh‎t ml =‎xmld‎o c.do‎c umen‎t elem‎e nt.t‎r ansf‎o rmno‎d e(xs‎l doc)‎}‎一、‎验证类‎1、数字验‎证内‎1.1 ‎整数‎1.2 ‎大于0的整‎数（用于‎传来的id‎的验证) ‎1.‎3负整数‎的验证‎ 1.4‎整数不能‎大于ima‎x‎1.5 整‎数不能小于‎i min ‎2、时间‎类‎2.1 短‎时间，形如‎(13:‎04:06‎)‎2.2 短‎日期，形如‎(200‎3-12-‎05)‎ 2.3‎长时间，‎形如 (2‎003-1‎2-05 ‎13:04‎:06) ‎2.‎4只有年‎和月。

javascript实用代码大全

javascript实⽤代码⼤全//取得控件得绝对位置(1)<script language="javascript">function getoffset(e){var t=e.offsetTop;var l=e.offsetLeft;while(e=e.offsetParent){t+=e.offsetTop;l+=e.offsetLeft;}var rec = new Array(1);rec[0] = t;rec[1] = l;return rec}</script>//获得控件的绝对位置(2)oRect = obj.getBoundingClientRect();oRect.leftoRect.//最⼩化,最⼤化,关闭<object id=min classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"><param name="Command" value="Minimize"></object><object id=max classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"><param name="Command" value="Maximize"></object><OBJECT id=close classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"><PARAM NAME="Command" value="Close"></OBJECT><input type=button value=最⼩化 onclick=min.Click()><input type=button value=最⼤化 onclick=max.Click()><input type=button value=关闭 onclick=close.Click()>//光标停在⽂字最后<script language="javascript">function cc(){var e = event.srcElement;var r =e.createTextRange();r.moveStart('character',e.value.length);r.collapse(true);r.select();}</script><input type=text name=text1 value="123" onfocus="cc()">//页⾯进⼊和退出的特效进⼊页⾯<meta http-equiv="Page-Enter" content="revealTrans(duration=x, transition=y)">推出页⾯<meta http-equiv="Page-Exit" content="revealTrans(duration=x, transition=y)">这个是页⾯被载⼊和调出时的⼀些特效。

JS脚本大全各种常用脚本

网页常用小技巧1. oncontextmenu="window.event.returnValue=false" 将彻底屏蔽鼠标右键<table border oncontextmenu=return(false)><td>no</table> 可用于Table2. <body onselectstart="return false"> 取消选取、防止复制3. onpaste="return false" 不准粘贴4. oncopy="return false;" oncut="return false;" 防止复制5. <link rel="Shortcut Icon" href="favicon.ico"> IE地址栏前换成自己的图标6. <link rel="Bookmark" href="favicon.ico"> 可以在收藏夹中显示出你的图标7. <input style="ime-mode:disabled"> 关闭输入法8. 永远都会带着框架<script language="JavaScript"></script>9. 防止被人frame<SCRIPT LANGUAGE=JAVASCRIPT></SCRIPT>10. 网页将不能被另存为<noscript><iframe src=*.html></iframe></noscript>11. <input type=button value=查看网页源代码onclick="window.location = 'view-source:'+ '/'">12.删除时确认<a href='javascript :if(confirm("确实要删除吗?"))location="boos.asp?& areyou=删除&page=1"'>删除</a>13. 取得控件的绝对位置//Javascript<script language="Javascript">function getIE(e){var t=e.offsetTop;var l=e.offsetLeft;while(e=e.offsetParent){t+=e.offsetTop;l+=e.offsetLeft;}alert("top="+t+"/nleft="+l);}</script>//VBScript<script language="VBScript"></script>14. 光标是停在文本框文字的最后<script language="javascript">function cc(){var e = event.srcElement;var r =e.createTextRange();r.moveStart('character',e.value.length);r.collapse(true);r.select();}</script><input type=text name=text1 value="123" onfocus="cc()">15. 判断上一页的来源javascript :document.referrer16. 最小化、最大化、关闭窗口<object id=hh1 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"> <param name="Command" value="Minimize"></object><object id=hh2 classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11"><param name="Command" value="Maximize"></object><OBJECT id=hh3 classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11"> <PARAM NAME="Command" VALUE="Close"></OBJECT><input type=button value=最小化 onclick=hh1.Click()><input type=button value=最大化 onclick=hh2.Click()><input type=button value=关闭 onclick=hh3.Click()>本例适用于IE17.屏蔽功能键Shift,Alt,Ctrl<script>function look(){if(event.shiftKey)alert("禁止按Shift键!"); //可以换成ALT CTRL}document.onkeydown=look;</script>18. 网页不会被缓存<META HTTP-EQUIV="pragma" CONTENT="no-cache"><META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"> <META HTTP-EQUIV="expires" CONTENT="Wed, 26 Feb 1997 08:21:57 GMT"> 或者<META HTTP-EQUIV="expires" CONTENT="0">19.怎样让表单没有凹凸感？<input type=text style="border:1 solid #000000">或<input type=text style="border-left:none; border-right:none; border-t op:none; border-bottom:1 solid #000000"></textarea>20.<div><span>&<layer>的区别？<div>(division)用来定义大段的页面元素，会产生转行<span>用来定义同一行内的元素，跟<div>的唯一区别是不产生转行<layer>是ns的标记，ie不支持，相当于<div>21.让弹出窗口总是在最上面:<body onblur="this.focus();">22.不要滚动条?让竖条没有:<body style='overflow:scroll;overflow-y:hidden'></body>让横条没有:<body style='overflow:scroll;overflow-x:hidden'></body>两个都去掉？更简单了<body scroll="no"></body>23.怎样去掉图片链接点击后，图片周围的虚线？<a href="#" onFocus="this.blur()"><img src="logo.jpg" border=0></a>24.电子邮件处理提交表单<form name="form1" method="post" action="mailto:****@***.com" enctype ="text/plain"><input type=submit></form>25.在打开的子窗口刷新父窗口的代码里如何写？window.opener.location.reload()26.如何设定打开页面的大小<body onload="top.resizeTo(300,200);">打开页面的位置<body onload="top.moveBy(300,200);">27.在页面中如何加入不是满铺的背景图片,拉动页面时背景图不动<STYLE>body{background-image:url(logo.gif); background-repeat:no-repeat;background-position:center;background-attachment: fixed}</STYLE>28. 检查一段字符串是否全由数字组成<script language="Javascript"></script>29. 获得一个窗口的大小document.body.clientWidth; document.body.clientHeight30. 怎么判断是否是字符if (/[^/x00-/xff]/g.test(s)) alert("含有汉字");else alert("全是字符");31.TEXTAREA自适应文字行数的多少<textarea rows=1 name=s1 cols=27 onpropertychange="this.style.posHeig ht=this.scrollHeight"></textarea>32. 日期减去天数等于第二个日期<script language=Javascript>function cc(dd,dadd){//可以加上错误处理var a = new Date(dd)a = a.valueOf()a = a - dadd * 24 * 60 * 60 * 1000a = new Date(a)alert(a.getFullYear() + "年" + (a.getMonth() + 1) + "月" + a.getDate() + "日")}cc("12/23/2002",2)</script>33. 选择了哪一个Radio<HTML><script language="vbscript">function checkme()for each ob in radio1if ob.checked then window.alert ob.valuenextend function</script><BODY><INPUT name="radio1" type="radio" value="style" checked>Style<INPUT name="radio1" type="radio" value="barcode">Barcode<INPUT type="button" value="check" onclick="checkme()"></BODY></HTML>34.脚本永不出错<SCRIPT LANGUAGE="JavaScript"></SCRIPT>35.ENTER键可以让光标移到下一个输入框<input onkeydown="if(event.keyCode==13)event.keyCode=9">36. 检测某个网站的链接速度：把如下代码加入<body>区域中:<script language=Javascript>tim=1setInterval("tim++",100)b=1var autourl=new Array()autourl[1]=""autourl[2]=""autourl[3]=""autourl[4]=""autourl[5]=""function butt(){document.write("<form name=autof>")for(var i=1;i<autourl.length;i++)document.write("<input type=text name=txt"+i+" size=10 value=测试中……> =》<input type=textname=url"+i+" size=40> =》<input type=button value=GOonclick=window.open(this.form.url"+i+".value)><br>")document.write("<input type=submit value=刷新></form>")}butt()function auto(url){document.forms[0]["url"+b].value=urlif(tim>200){document.forms[0]["txt"+b].value="链接超时"}else{document.forms[0]["txt"+b].value="时间"+tim/10+"秒"}b++}function run(){for(var i=1;i<autourl.length;i++)document.write("<imgsrc=http://"+autourl+"/"+Math.random()+" width=1 height=1onerror=auto('http://"+autourl+"')>")}run()</script>37. 各种样式的光标auto ：标准光标default ：标准箭头hand ：手形光标wait ：等待光标text ：I形光标vertical-text ：水平I形光标no-drop ：不可拖动光标not-allowed ：无效光标help ：?帮助光标all-scroll ：三角方向标move ：移动标crosshair ：十字标e-resizen-resizenw-resizew-resizes-resizese-resizesw-resize38.页面进入和退出的特效进入页面<meta http-equiv="Page-Enter" content="revealTrans(duration=x, transition=y)">推出页面<meta http-equiv="Page-Exit" content="revealTrans(duration=x, transition=y)">这个是页面被载入和调出时的一些特效。

javascript常用代码大全（超级收藏,强烈推荐）（4）

javascript常用代码大全（超级收藏,强烈推荐）（4）/*随风JavaScript函数库请把经过测试的函数加入库*//********************函数名称：StrLenthByByte函数功能：计算字符串的字节长度，即英文算一个，中文算两个字节函数参数：str,为需要计算长度的字符串********************/function StrLenthByByte(str){var len;var i;len = 0;for (i=0;i<str.length;i++)< p="">{if (str.charCodeAt(i)>255) len+=2; else len++;}return len;}/********************函数名称：IsEmailAddress函数功能：检查Email邮件地址的合法性，合法返回true,反之,返回false 函数参数：obj,需要检查的Email邮件地址********************/function IsEmailAddress(obj){var pattern=/^[a-zA-Z0-9\\-]+@[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3})$/; if(pattern.test(obj)){return true;}else{return false;}}/********************函数名称：PopWindow函数功能：弹出新窗口函数参数：pageUrl,新窗口地址;WinWidth,窗口的宽；WinHeight,窗口的高********************/function PopWindow(pageUrl,WinWidth,WinHeight){varpopwin=window.open(pageUrl,"PopWin","scrollbars=yes,to olbar=no,location=no,directories=no,status=no,menubar=no,resizable=no,width="+Win Width+",height="+WinHei ght);return false;}/********************函数名称：PopRemoteWindow函数功能：弹出可以控制父窗体的原程窗口函数参数：pageUrl,新窗口地址;调用方法：打开窗口：_fcksavedurl=""javascript:popRemoteWindow(url);">Open </str.length;i++)<>。

JS网页常用代码大全

onClick="location.href='/'">
17、警告框显示源代码 <BUTTON onClick=alert(document.documentElement.outerHTML) style="width:110">警告框显
示源代码</BUTTON>
21、另存为 <input onClick="document.execCommand('saveas','true','常用代码.htm')" type=button
value=另存为>
22、点击自动复制 <script>function oCopy(obj){obj.select();js=obj.createTextRange();js.execCommand
点击清空文字 <input name=name size=11 value=点击清空文字 onMouseOver=this.focus() onblur="if
(this.value =='') this.value='点击清空文字'" onFocus=this.select() onClick="if (this.value=='点击清空文字') this.value=''">
JS 网页常用代码大全 ******************************************************************************* ******** 1、后退前进 <input type="button" value="后退" onClick="history.go(-1)"> <input type="button" value="前进" onClick="history.go( 1 );return true;">

常用的JS代码片段

常用的JS代码片段判断所有数据类型@param obj 要判断类型的数据@return {string} 数据类型（小写）const type = (function () { // 映射类型const classType = "Boolean Number String Function Array Date RegExp Object Error Null Undefined" .split(" ") .reduce((obj, item) => { obj["[object " + item + "]"] = item.toLowerCase(); return obj; }, {}); return function (obj) { // 仅 undefined 与 null 成立if (obj == null) { return obj + ""; } return typeof obj === "object" ? classType[Object.prototype.toString.call(obj)] : typeof obj; };})();// Examplesconsole.log(type(new Date())); // dateconsole.log(type([1, 2])); // arrayconsole.log(type(1)); // numberconsole.log(type({})); // object判断空对象function isEmptyObject(obj) { if (Object.prototype.toString.call(obj) !== "[object Object]") return false; var name; for (name in obj) { return false; } return true;}// Examplesconsole.log(isEmptyObject({})); // trueconsole.log(isEmptyObject([])); // falseconsole.log(isEmptyObject(null)); // falseconsole.log(isEmptyObject(undefined)); // falseconsole.log(isEmptyObject(1)); // falseconsole.log(isEmptyObject("")); // falseconsole.log(isEmptyObject(true)); // false判断当前运行环境function userAgent() { var u = erAgent; return { // 移动终端浏览器版本信息 trident: u.indexOf("Trident") > -1, // IE内核 presto: u.indexOf("Presto") > -1, // opera内核 webKit:u.indexOf("AppleWebKit") > -1, // 苹果、谷歌内核gecko: u.indexOf("Gecko") > -1 && u.indexOf("KHTML") === -1, // 火狐内核 mobile: !!u.match(/AppleWebKit.*Mobile.*/), // 是否为移动终端iPad: u.indexOf("iPad") > -1, // 是否iPad webApp: u.indexOf("Safari") === -1, // 是否web应该程序，没有头部与底部, isiOS: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), // ios终端isAndroid: u.indexOf("Android") > -1 || u.indexOf("Adr") > -1, };}// Examplesconst browser = userAgent();if (browser.mobile) { // 移动端=> todo something if (browser.isiOS && browser.webApp) { // IOS系统&& web程序=> todo something } else { // 安卓 => todo something }} else { // PC => todo something}平滑滚动到页面顶部const scrollT oTop = () => { const c = document.documentElement.scrollT op || document.body.scrollTop; if (c > 0) { window.requestAnimationFrame(scrollToTop); window.scrollT o(0, c - c / 8); }};// ExamplesscrollToT op();将视口平滑滚动到指定元素const smoothScroll = (element) => document.querySelector(element).scrollIntoView({ behavior: "smooth", });// ExamplessmoothScroll("#fooBar");监听滚动结束const onScrollStop = (callback) => { let isScrolling; window.addEventListener( "scroll", (e) => { clearTimeout(isScrolling); isScrolling = setTimeout(() => { callback(); }, 150); }, false );};// ExamplesonScrollStop(() => { console.log("The user has stopped scrolling");});监听点击指定元素外部const onClickOutside = (element, callback) => { document.addEventListener("click", (e) => { if (!element.contains(e.target)) callback(); });};// ExamplesonClickOutside("#my-element", () => console.log("Hello"));获取浏览器当前语言// defaultLang 为默认语言const detectLanguage = (defaultLang = "en-US") => nguage || (Array.isArray(nguages) && nguages[0]) || defaultLang;// ExamplesdetectLanguage(); // 'nl-NL'控制浏览器全屏、退出全屏const fullscreen = (mode = true, el = "body") => mode ? document.querySelector(el).requestFullscreen() : document.exitFullscreen();// Examplesfullscreen(); // Opens `body` in fullscreen modefullscreen(false); // Exits fullscreen mode封装原生 GET、POST 请求const httpGet = (url, callback, err = console.error) => { const request = new XMLHttpRequest(); request.open("GET", url, true); request.onload = () => callback(request.responseText); request.onerror = () => err(request); request.send();};const httpPost = (url, data, callback, err = console.error) => { const request = new XMLHttpRequest(); request.open("POST", url, true); request.setRequestHeader("Content-type", "application/json; charset=utf-8"); request.onload = () => callback(request.responseText); request.onerror = () => err(request); request.send(data);};// ExampleshttpGet("/posts/1", console.log); /*Logs: { "userId": 1, "id": 1, "title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit","body": "quia et suscipit\nsuscipit recusandae consequuntur expedita et cum\nreprehenderit molestiae ut ut quas totam\nnostrum rerum est autem sunt rem eveniet architecto"}*/httpPost( "/posts", null, // does not send a body console.log); /*Logs: { "id": 101}*/作者：i.faker/post/6990595401657090085。

[小学教育]js经典代码

[1].javascript 判断某页面上的表单数据是否改变过使用场合：当某个页面数据修改时，需要执行某些操作时在页面的body加载事件（onload）中加上initFileds()就可以记录页面的初始数据在需要判断页面数据是否改变时调用checkModification()方法就可判断数据是否改变返回值为true就是已经改变返回值为false就是没有改变// 页面编辑数据var inputsData;var textareasData;var selectsData;// 记录下表单中的原始值function initFileds() {var inputs = document.getElementsByTagName("input");var textareas = document.getElementsByTagName("textarea");var selects = document.getElementsByTagName("select");inputsData = new Array(inputs.length);for (var i=0;i<inputs.length;i++) {inputsData[i] = inputs[i].value;if (inputs[i].type=="radio") {inputsData[i]=inputs[i].checked;}}textareasData = new Array(textareas.length);for (var i=0;i<textareas.length;i++) {textareasData[i] = textareas[i].value;}selectsData = new Array(selects.length);for (var i=0;i<selects.length;i++) {selectsData[i] = selects[i].value;}}/** 判断表单中值是否被修改了* submitCommand 表单有改动时,执行的javascript代码*/function checkModification(submitCommand) {var inputs = document.getElementsByTagName("input");var textareas = document.getElementsByTagName("textarea");var selects = document.getElementsByTagName("select");var hasBeenChanged = false;for (var i=0;i<inputs.length;i++) {if (inputs[i].type=="radio"&&(inputs[i].checked!=inputsData[i])) {hasBeenChanged = true;inputsData[i]=inputs[i].checked;}if (inputs[i].type!="radio"&&inputsData[i]!=inputs[i].value) {if(inputs[i].name!="actionType"){hasBeenChanged = true;}inputsData[i]=inputs[i].value;}}for (var i=0;i<textareas.length;i++) {if (textareasData[i]!=textareas[i].value) {hasBeenChanged = true;textareasData[i]=textareas[i].value;}}for (var i=0;i<selects.length;i++) {if (selectsData[i]!=selects[i].value) {hasBeenChanged = true;selectsData[i]=selects[i].value;}}if (hasBeenChanged&&confirm("数据已经改变,是否保存？")) {eval(submitCommand);}}[2].用javascript检测浏览器是否是遨游（Maxthon）浏览器最近使用一个js的弹出菜单效果，发现在傲游浏览器上对contextmenu事件的执行有些异常。

js练习题代码

js练习题代码JavaScript (简称JS) 练习题代码以下是一些JS练习题的代码，供您参考。

代码1:```javascript// 1. 将两个数字相加并返回结果function addNumbers(a, b) {return a + b;}// 2. 检查一个数字是否为偶数function isEven(num) {return num % 2 === 0;}// 3. 计算一个数组中所有数字的和function calculateSum(nums) {let sum = 0;for (let i = 0; i < nums.length; i++) {sum += nums[i];}return sum;}// 4. 检查一个字符串是否为回文function isPalindrome(str) {const reversedStr = str.split('').reverse().join(''); return str === reversedStr;}// 5. 打印九九乘法表function printMultiplicationTable() {for (let i = 1; i <= 9; i++) {let row = '';for (let j = 1; j <= i; j++) {row += `${j} * ${i} = ${i * j} `;}console.log(row);}}```代码2:```javascript// 1. 求数组中的最大值function findMaxValue(arr) {let max = arr[0];for (let i = 1; i < arr.length; i++) {if (arr[i] > max) {max = arr[i];}}return max;}// 2. 检查一个字符串是否为有效的邮箱地址function isValidEmail(email) {const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/; return emailRegex.test(email);}// 3. 计算一个数字的阶乘function calculateFactorial(num) {let factorial = 1;for (let i = 2; i <= num; i++) {factorial *= i;}return factorial;}// 4. 反转一个字符串function reverseString(str) {return str.split('').reverse().join(''); }// 5. 打印斐波那契数列前 n 个数字function printFibonacciSeries(n) { let fib = [0, 1];for (let i = 2; i < n; i++) {fib[i] = fib[i - 1] + fib[i - 2];}console.log(fib);}```以上是一些简单的JS练习题代码，可以用于巩固和练习JS编程技能。