javascript 应用小技巧方法汇总
投稿：hebedich
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这篇文章主要介绍了javascript 应用小技巧方法汇总的相关资料,需要的朋友可以参考下
javascript 在前端应用体验小技巧继续积累。
事件源对象 event.srcElement.tagName
event.srcElement.type
捕获释放 event.srcElement.setCapture();
event.srcElement.releaseCapture();
事件按键 event.keyCode event.shiftKey
event.altKey event.ctrlKey
事件返回值 event.returnValue
鼠标位置 event.x event.y
窗体活动元素 document.activeElement
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=
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);
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" CONTENT="8;URL=http://c98.yeah.net"&
简单邮件 &a href="mailto:?subject=ccc&body=xxxyyy"&
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-break: break-
透明背景 &IFRAME src="1.htm" width=300 height=180 allowtransparency&&/iframe&
获得style内容 obj.style.cssText
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。 &a href="javascript:function()"&word&/a&
上一网页源 asp: request.servervariables("HTTP_REFERER")
javascript: document.referrer
释放内存 CollectGarbage();
禁止右键document.oncontextmenu = function() {}
禁止保存 &noscript&&iframe src="*.htm"&&/iframe&&/noscript&
禁止选取&body oncontextmenu="return false" ondragstart="return false" onselectstart ="return false" onselect="document.selection.empty()" oncopy="document.selection.empty()" onbeforecopy="return false"onmouseup="document.selection.empty()&
禁止粘贴 &input type=text onpaste="return false"&
地址栏图标 &link rel="Shortcut Icon" href="favicon.ico"& favicon.ico 名字最好不变16*16的16色,放虚拟目录根目录下
收藏栏图标 &link rel="Bookmark" href="favicon.ico"&
查看源码 &input type=button value=查看网页源代码 onclick="window.location = 'view-source:'+ 'http://www.csdn.net/'"&
关闭输入法 &input style="ime-mode:disabled"&
自动全选&input type=text name=text1 value="123" onfocus="this.select()"&
ENTER键可以让光标移到下一个输入框 &input onkeydown="if(event.keyCode==13)event.keyCode=9"&
文本框的默认值 &input type=text value="123" onfocus="alert(this.defaultValue)"&
title换行 obj.title = "123&#13sdfs&#32"
获得时间所代表的微秒 var n1 = new Date("".replace(/-/g, "\/")).getTime()
窗口是否关闭 win.closed
checkbox扁平 &input type=checkbox style="position: clip:rect(5px 15px 15px 5px)"&&br&
获取选中内容
document.selection.createRange().duplicate().text
自动完成功能 &input type=text autocomplete=on&打开该功能
&input type=text autocomplete=off&关闭该功能
窗口最大化 &body onload="window.resizeTo(window.screen.width - 4,window.screen.height-50);window.moveTo(-4,-4)"&
无关闭按钮IE window.open("aa.htm", "meizz", "fullscreen=7");
统一编码/解码
alert(decodeURIComponent(encodeURIComponent("http://你好.com?as= hehe"))) encodeURIComponent对":"、"/"、";" 和 "?"也编码
表格行指示 &tr onmouseover="this.bgColor='#f0f0f0'" onmouseout="this.bgColor='#ffffff'"&
//各种尺寸
s += "\r\n网页可见区域宽："+ document.body.clientW
s += "\r\n网页可见区域高："+ document.body.clientH
s += "\r\n网页可见区域高："+ document.body.offsetWeight +" (包括边线的宽)";
s += "\r\n网页可见区域高："+ document.body.offsetHeight +" (包括边线的宽)";
s += "\r\n网页正文全文宽："+ document.body.scrollW
s += "\r\n网页正文全文高："+ document.body.scrollH
s += "\r\n网页被卷去的高："+ document.body.scrollT
s += "\r\n网页被卷去的左："+ document.body.scrollL
s += "\r\n网页正文部分上："+ window.screenT
s += "\r\n网页正文部分左："+ window.screenL
s += "\r\n屏幕分辨率的高："+ window.screen.
s += "\r\n屏幕分辨率的宽："+ window.screen.
s += "\r\n屏幕可用工作区高度："+ window.screen.availH
s += "\r\n屏幕可用工作区宽度："+ window.screen.availW
//过滤数字
代码如下:&input type=text onkeypress="return event.keyCode&=48&&event.keyCode&=57||(this.value.indexOf('.')&0?event.keyCode==46:false)" onpaste="return !clipboardData.getData('text').match(/\D/)" ondragenter="return false"&
//特殊用途
代码如下:&input type=button value=导入收藏夹 onclick="window.external.ImportExportFavorites(true,'http://localhost');"& &input type=button value=导出收藏夹 onclick="window.external.ImportExportFavorites(false,'http://localhost');"& &input type=button value=整理收藏夹 onclick="window.external.ShowBrowserUI('OrganizeFavorites', null)"&
&input type=button value=语言设置&& onclick="window.external.ShowBrowserUI('LanguageDialog', null)"&
&input type=button value=加入收藏夹 onclick="window.external.AddFavorite('/', 'google')"& &input type=button value=加入到频道 onclick="window.external.addChannel('/')"& &input type=button value=加入到频道 onclick="window.external.showBrowserUI('PrivacySettings',null)"&
代码如下:&META HTTP-EQUIV="pragma" CONTENT="no-cache"& &META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"&
&META HTTP-EQUIV="expires" CONTENT="0"&
//正则匹配
代码如下:匹配中文字符的正则表达式： [\u4e00-\u9fa5]
匹配双字节字符(包括汉字在内)：[^\x00-\xff] 匹配空行的正则表达式：\n[\s| ]*\r
匹配HTML标记的正则表达式：/&(.*)&.*&\/\1&|&(.*) \/&/&
匹配首尾空格的正则表达式：(^\s*)|(\s*$)（像vbscript那样的trim函数）
匹配Email地址的正则表达式：\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
匹配网址URL的正则表达式：- ./?%&=]*)? 以下是例子： 利用正则表达式限制网页表单里的文本框输入内容： 用正则表达式限制只能输入中文：onkeyup="value=value.replace(/[^\u4E00-\u9FA5]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\u4E00-\u9FA5]/g,''))"
1.用正则表达式限制只能输入全角字符： onkeyup="value=value.replace(/[^\uFF00-\uFFFF]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\uFF00-\uFFFF]/g,''))"
2.用正则表达式限制只能输入数字：onkeyup="value=value.replace(/[^\d]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))"
3.用正则表达式限制只能输入数字和英文：onkeyup="value=value.replace(/[\W]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))"
//消除图像工具栏
代码如下:&IMG SRC="mypicture.jpg" HEIGHT="100px" WIDTH="100px" GALLERYIMG="false"&& or &head&
&meta http-equiv="imagetoolbar" content="no"& &/head&
//无提示关闭
代码如下:function Close() { var ua=navigator.userAgent var ie=navigator.appName=="Microsoft Internet Explorer"?true:false if(ie) {&&&&&& var IEversion=parseFloat(ua.substring(ua.indexOf("MSIE ")+5,ua.indexOf(";",ua.indexOf("MSIE "))))&& if(IEversion& 5.5)&& {&&& var str& = '&object id=noTipClose classid="clsid:ADB880A6-D8FF-11CF-3B7A11"&'
&&&&&& str += '&param name="Command" value="Close"&&/object&';
&&&&&& document.body.insertAdjacentHTML("beforeEnd", str);
&&&&&& document.all.noTipClose.Click();&& }&&&&&& else&& {
&&&&&& window.opener =
&&&&&& window.close();&&&&&& }&&& } else {
& window.close()&&& } }
//取得控件得绝对位置(1)
代码如下:&script language="javascript"&& function getoffset(e) {& var t=e.offsetT& var l=e.offsetL& while(e=e.offsetParent) {&
& t+=e.offsetT&&& l+=e.offsetL& }& var rec = new Array(1);
rec[0]& = rec[1] = return rec }& &/script&
//获得控件的绝对位置(2)
oRect = obj.getBoundingClientRect();
oRect.left oRect.
//最小化,最大化,关闭
&object id=min classid="clsid:ADB880A6-D8FF-11CF-3B7A11"&
&param name="Command" value="Minimize"&&/object&
&object id=max classid="clsid:ADB880A6-D8FF-11CF-3B7A11"&
&param name="Command" value="Maximize"&&/object&
&OBJECT id=close classid="clsid:adb880a6-d8ff-11cf-3b7a11"&
&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
代码如下:&script language="javascript"& function cc() { var e = event.srcE 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。duration表示特效的持续时间，以秒为单位。transition表示使 用哪种特效，取值为1-23:
　　0 矩形缩小& 　　1 矩形扩大& 　　2 圆形缩小 　　3 圆形扩大& 　　4 下到上刷新&
　　5 上到下刷新 　　6 左到右刷新& 　　7 右到左刷新& 　　8 竖百叶窗 　　9 横百叶窗&
　　10 错位横百叶窗& 　　11 错位竖百叶窗 　　12 点扩散& 　　13 左右到中间刷新&
　　14 中间到左右刷新 　　15 中间到上下 　　16 上下到中间& 　　17 右下到左上 　　18 右上到左下&
　　19 左上到右下& 　　20 左下到右上 　　21 横条& 　　22 竖条& 　　23
//网页是否被检索
&meta name="ROBOTS" content="属性值"& 　　其中属性值有以下一些: 　　属性值为"all": 文件将被检索，且页上链接可被查询； 　　属性值为"none": 文件不被检索，而且不查询页上的链接； 　　属性值为"index": 文件将被检索； 　　属性值为"follow": 查询页上的链接； 　　属性值为"noindex": 文件不检索，但可被查询链接； 　　属性值为"nofollow":
//打印分页
&p& style="page-break-after:always"&page1&/p&&&
&p& style="page-break-after:always"&page2&/p&&
//设置打印
&object id="factory" style="display:none" viewastext
classid="clsid:eb-11d2-b92f-008048fdd814"
codebase="/scriptx/ScriptX.cab#Version=5,60,0,360" &&/object&
&input type=button value=页面设置 onclick="factory.printing.PageSetup()"&
&input type=button value=打印预览 onclick="factory.printing.Preview()"&
&script language=javascript& function window.onload() {
// -- advanced features
factory.printing.SetMarginMeasure(2) // measure margins in inches
factory.printing.SetPageRange(false, 1, 3) // need pages from 1 to 3
factory.printing.printer = "HP DeskJet 870C"
factory.printing.copies = 2
factory.printing.collate = true
factory.printing.paperSize = "A4"
factory.printing.paperSource = "Manual feed"
// -- basic features
factory.printing.header = "居左显示&b居中显示&b居右显示页码，第&p页/共&P页"
factory.printing.footer = "（自定义页脚）"
factory.printing.portrait = false
factory.printing.leftMargin = 0.75
factory.printing.topMargin = 1.5
factory.printing.rightMargin = 0.75
factory.printing.bottomMargin = 1.5 } function Print(frame) {
factory.printing.Print(true, frame) // print with prompt } &/script&
&input type=button value="打印本页" onclick="factory.printing.Print(false)"&
&input type=button value="页面设置" onclick="factory.printing.PageSetup()"&
&input type=button value="打印预览" onclick="factory.printing.Preview()"&&br&
&a href="/scriptx/docs/printdoc.htm?static" target=_blank&具体使用手册，更多信息，点这里&/a&
//自带的打印预览
WebBrowser.ExecWB(1,1) 打开
Web.ExecWB(2,1) 关闭现在所有的IE窗口，并打开一个新窗口 Web.ExecWB(4,1) 保存网页
Web.ExecWB(6,1) 打印 Web.ExecWB(7,1) 打印预览 Web.ExecWB(8,1) 打印页面设置
Web.ExecWB(10,1) 查看页面属性 Web.ExecWB(15,1) 好像是撤销，有待确认
Web.ExecWB(17,1) 全选 Web.ExecWB(22,1) 刷新 Web.ExecWB(45,1) 关闭窗体无提示
&style media=print&
.Noprint{display:}&!--用本样式在打印时隐藏非打印项目--&
.PageNext{page-break-after:}&!--控制分页--& &/style&
&object id="WebBrowser" width=0 height=0 classid="CLSID:A-11D0-A96B-00C04FD705A2"&
&center class="Noprint" &
&input type=button value=打印 onclick=document.all.WebBrowser.ExecWB(6,1)&
&input type=button value=直接打印 onclick=document.all.WebBrowser.ExecWB(6,6)&
&input type=button value=页面设置 onclick=document.all.WebBrowser.ExecWB(8,1)&
&p& &input type=button value=打印预览 onclick=document.all.WebBrowser.ExecWB(7,1)&
//去掉打印时的页眉页脚
&script language="JavaScript"&
var HKEY_Root,HKEY_Path,HKEY_K
HKEY_Root="HKEY_CURRENT_USER";
HKEY_Path="\\Software\\Microsoft\\Internet Explorer\\PageSetup\\";
//设置网页打印的页眉页脚为空 function PageSetup_Null() { try {
var Wsh=new ActiveXObject("WScript.Shell");
HKEY_Key="header";
Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"");
HKEY_Key="footer";
Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,""); } catch(e){} } //设置网页打印的页眉页脚为默认值 function PageSetup_Default() {
var Wsh=new ActiveXObject("WScript.Shell");
HKEY_Key="header";
Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"&w&b页码,&p/&P");
HKEY_Key="footer";
Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"&u&b&d"); } catch(e){} } &/script&
&input type="button" value="清空页码" onclick=PageSetup_Null()&
&input type="button" value="恢复页码" onclick=PageSetup_Default()&
//浏览器验证
function checkBrowser() {
this.ver=navigator.appVersion
this.dom=document.getElementById?1:0
this.ie6=(this.ver.indexOf("MSIE 6")&-1 && this.dom)?1:0;
this.ie5=(this.ver.indexOf("MSIE 5")&-1 && this.dom)?1:0;
this.ie4=(document.all && !this.dom)?1:0;
this.ns5=(this.dom && parseInt(this.ver) &= 5) ?1:0;
this.ns4=(document.layers && !this.dom)?1:0;
this.mac=(this.ver.indexOf('Mac') & -1) ?1:0;
this.ope=(navigator.userAgent.indexOf('Opera')&-1);
this.ie=(this.ie6 || this.ie5 || this.ie4)
this.ns=(this.ns4 || this.ns5)
this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns5 || this.ns4 || this.mac || this.ope)
this.nbw=(!this.bw)
//计算内容宽和高
&SCRIPT language="javascript"&
function test(obj)
var range = obj.createTextRange();
alert("内容区宽度: " + range.boundingWidth
+ "px\r\n内容区高度: " + range.boundingHeight + "px");
&Textarea id="txt" height="150"&sdf&/textarea&&INPUT type="button" value="计算内容宽度" onClick="test(txt)"&
//无模式的提示框
function modelessAlert(Msg) {
window.showModelessDialog("javascript:alert(\""+escape(Msg)+"\");window.close();","","status:resizable:help:dialogHeight:height:30dialogHeight:40");
//屏蔽按键
&meta http-equiv="Content-Type" content="text/ charset=gb2312"&
&noscript&&meta http-equiv="refresh" content="0;url=about:noscript"&&/noscript&
&title&屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键&/title&
&/head& &body& &script language="Javascript"&&!--
//屏蔽鼠标右键、Ctrl+N、Shift+F10、F11、F5刷新、退格键
//Author: meizz(梅花雨)
function document.oncontextmenu(){event.returnValue=}//屏蔽鼠标右键 function window.onhelp(){return false} //屏蔽F1帮助 function document.onkeydown()
if ((window.event.altKey)&&
((window.event.keyCode==37)||
//屏蔽 Alt+ 方向键 ←
(window.event.keyCode==39)))
//屏蔽 Alt+ 方向键 →
alert("不准你使用ALT+方向键前进或后退网页！");
event.returnValue=
/* 注：这还不是真正地屏蔽 Alt+ 方向键，
因为 Alt+ 方向键弹出警告框时，按住 Alt 键不放，
用鼠标点掉警告框，这种屏蔽方法就失效了。以后若
有哪位高手有真正屏蔽 Alt 键的方法，请告知。*/
if ((event.keyCode==8) ||
//屏蔽退格删除键
(event.keyCode==116)||
//屏蔽 F5 刷新键
(event.ctrlKey && event.keyCode==82)){ //Ctrl + R
event.keyCode=0;
event.returnValue=
if (event.keyCode==122){event.keyCode=0;event.returnValue=} //屏蔽F11
if (event.ctrlKey && event.keyCode==78) event.returnValue=
//屏蔽 Ctrl+n
if (event.shiftKey && event.keyCode==121)event.returnValue= //屏蔽 shift+F10
if (window.event.srcElement.tagName == "A" && window.event.shiftKey)
window.event.returnValue =
//屏蔽 shift 加鼠标左键新开一网页
if ((window.event.altKey)&&(window.event.keyCode==115))
//屏蔽Alt+F4
window.showModelessDialog("about:blank","","dialogWidth:1dialogheight:1px");
} } &/script&
屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键 &/body&
//屏蔽打印 &style& @media print{ * {display:none} } &/style&
//移动的图层，拖动
1.&span style='position:width:200;height:200;background:red' onmousedown=MouseDown(this) onmousemove=MouseMove() onmouseup=MouseUp()&meizz&/span&
&script language=javascript& var O function MouseDown(obj) {
Obj.setCapture();
Obj.l=event.x-Obj.style.pixelL
Obj.t=event.y-Obj.style.pixelT } function MouseMove() {
if(Obj!=null)
Obj.style.left = event.x-Obj.l;
Obj.style.top = event.y-Obj.t;
} } function MouseUp() {
if(Obj!=null)
Obj.releaseCapture();
} } &/script& 2.
&div id="myDiv" src="logo.gif" ondrag="doDrag();" onmouseover="this.style.cursor='hand'" style="position:left=100;top=100;" onmousedown="doMouseDown();"& &a href="#" onclick="return false"&&h1&wlecome&/h1&&/a&
&/div& &script language="JavaScript" type="text/javascript"& var orgMouseX; var orgMouseY; var orgObjX; var orgObjY; function doDrag() { var myObject=document.all.myD
var x=event.clientX; var y=event.clientY;
myObject.style.left=x-(orgMouseX-orgObjX);
myObject.style.top=y-(orgMouseY-orgObjY);
} function doMouseDown() {
orgMouseX=event.clientX; orgMouseY=event.clientY;
orgObjX=parseInt(document.all.myDiv.style.left);
orgObjY=parseInt(document.all.myDiv.style.top); }
//文档状态改变
&iframe src="a.html" id="f" name="f" scrolling="no" frameborder=0 marginwidth=0 marginheight=0&&/iframe&
&script& var doc=window.frames["f"]. function s(){ if (doc.readyState=="complete"){
document.all.f.style.height=doc.body.scrollHeight
document.all.f.style.width=doc.body.scrollWidth } }
doc.onreadystatechange=s &/script&
//刷新后不变的文本框
&HEAD& &META NAME="save" CONTENT="history"& &STYLE&
.sHistory {behavior:url(#default#savehistory);} &/STYLE&
&/HEAD& &BODY&
&INPUT class="sHistory" type=text id=oPersistInput& &/BODY&
//访问剪贴板
(1)拖拽访问
event.dataTransfer.setData("URL", oImage.src);
sImageURL = event.dataTransfer.getData("URL") (2)普通访问
window.clipboardData.setData("Text",oSource.innerText);
window.clipboardData.getData("Text");
//操作COOKIE
function SetCookie(sName, sValue) {
document.cookie = sName + "=" + escape(sValue) + "; "; } function GetCookie(sName) { var aCookie = document.cookie.split("; "); for (var i=0; i & aCookie. i++) {
var aCrumb = aCookie[i].split("=");
if (sName == aCrumb[0])
return unescape(aCrumb[1]); }
function DelCookie(sName) {
document.cookie = sName + "=" + escape(sValue) + "; expires=Fri, 31 Dec :59 GMT;"; }
//setTimeout增加参数
代码如下:&script&
var _st = window.setT
window.setTimeout = function(fRef, mDelay) { if(typeof fRef == 'function'){&& var argu = Array.prototype.slice.call(arguments,2);
& var f = (function(){ fRef.apply(null, argu); });&& return _st(f, mDelay); } return _st(fRef,mDelay); } function test(x){ alert(x); }
window.setTimeout(test,1000,'fason'); &/script&
//自定义的apply,call
代码如下:Function.prototype.apply = function (obj, argu) { if (obj) obj.constructor.prototype._caller =& var argus = new Array();
for (var i=0;i&argu.i++)
& argus[i] = "argu[" + i + "]"; eval("r = " + (obj ? ("obj._caller(" + argus.join(",") + ");") : ("this(" + argus.join(",") + ");"))); };
Function.prototype.call = function (obj) { var argu = new Array();
for (var i=1;i&arguments.i++)
& argu[i-1] = arguments[i]; return this.apply(obj, argu); };&
//下载文件
代码如下:function DownURL(strRemoteURL,strLocalURL) {
try {&& var xmlHTTP=new ActiveXObject("Microsoft.XMLHTTP");&& xmlHTTP.open("Get",strRemoteURL,false);&& xmlHTTP.send();&& var adodbStream=new ActiveXObject("ADODB.Stream");&& adodbStream.Type=1;//1=adTypeBinary&& adodbStream.Open();
& adodbStream.write(xmlHTTP.responseBody);
& adodbStream.SaveToFile(strLocalURL,2);&& adodbStream.Close();
& adodbStream=&& xmlHTTP=&&& } catch(e) {&& window.confirm("下载URL出错!"); } //window.confirm("下载完成."); }
//检验连接是否有效
代码如下:function getXML(URL)& { var xmlhttp = new ActiveXObject("microsoft.xmlhttp"); xmlhttp.Open("GET",URL, false);& try {&&& xmlhttp.Send();
} catch(e){} finally& {&& var result = xmlhttp.responseT&& if(result)&&& {&&& if(xmlhttp.Status==200)&&& {&&&& return(true);
&& }&&& else&&&& {&&&& return(false);
&& }&& }&& else&&& {
&& return(false);&& } } }
//POST代替FORM
代码如下:&SCRIPT language="VBScript"& Function URLEncoding(vstrIn)
&&& strReturn = ""
&&& For i = 1 To Len(vstrIn)&&&&&&&& ThisChr = Mid(vStrIn,i,1)
&&&&&&& If Abs(Asc(ThisChr)) & &HFF Then
&&&&&&&&&&& strReturn = strReturn & ThisChr&&&&&&&& Else
&&&&&&&&&&& innerCode = Asc(ThisChr)
&&&&&&&&&&& If innerCode & 0 Then
&&&&&&&&&&&&&&& innerCode = innerCode + &H10000&&&&&&&&&&&& End If
&&&&&&&&&&& Hight8 = (innerCode& And &HFF00)\ &HFF
&&&&&&&&&&& Low8 = innerCode And &HFF
&&&&&&&&&&& strReturn = strReturn & "%" & Hex(Hight8) && "%" & Hex(Low8)&&&&&&&& End If
&&& Next&&&& URLEncoding = strReturn End Function
Function bytes2BSTR(vIn)&&&& strReturn = ""&&&& For i = 1 To LenB(vIn)
&&&&&&& ThisCharCode = AscB(MidB(vIn,i,1))
&&&&&&& If ThisCharCode & &H80 Then
&&&&&&&&&&& strReturn = strReturn & Chr(ThisCharCode)&&&&&&&& Else
&&&&&&&&&&& NextCharCode = AscB(MidB(vIn,i+1,1))
&&&&&&&&&&& strReturn = strReturn & Chr(CLng(ThisCharCode) * &H100 + CInt(NextCharCode))
&&&&&&&&&&& i = i + 1&&&&&&&& End If&&&& Next
&&& bytes2BSTR = strReturn End Function dim strA,oReq
strA = URLEncoding("submit1=Submit&text1=中文")
set oReq = CreateObject("MSXML2.XMLHTTP") oReq.open "POST"," oReq.setRequestHeader "Content-Length",Len(strA)
oReq.setRequestHeader "CONTENT-TYPE","application/x-www-form-urlencoded"
oReq.send strA msgbox bytes2BSTR(oReq.responseBody) &/SCRIPT&
//readyState是xmlhttp返回数据的进度，0=载入中,1=未初始化,2=已载入,3=运行中,4=完成
//组件是否安装
isComponentInstalled("{6B053A4B-A7EC-4D3D-A1A5739}", "componentID"))
//检查网页是否存在
代码如下:function CheckURL(URL) {&& var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");&& xmlhttp.Open("GET",URL, false);&& try&& {&
&&& xmlhttp.Send();&&&&& var result = xmlhttp.&& }&& catch(e) {return(false); }&& if(result==200)&& {&&&&&
& }&& xmlhttp =&&
//连接数据库
代码如下:&script language="javascript"&&& //用 JavaScript 写服务器端连接数据库的代码示例&& var conn = new ActiveXObject("ADODB.Connection");&& conn.Open("Provider=SQLOLEDB.1; Data Source= User ID= "
&&& +"Password=; Initial Catalog=pubs");
& var rs = new ActiveXObject("ADODB.Recordset");&& var sql="select * from authors";&& rs.open(sql, conn);
shtml = "&table width='100%' border=1&";
shtml +="&tr bgcolor='#f4f4f4'&&td&au_id&/td&&td&au_lname&/td&&td&au_fname&/td&&td&phone&/td&&td&address&/td&&td& city&/td&&td&state&/td&&td&zip&/td&&/tr&";
& while(!rs.EOF)&& {
shtml += "&tr&&td&" + rs("au_id") + "&/td&&td&" + rs("au_lname") + "&/td&&td&" + rs("au_fname") + "&/td&&td&" + rs("phone") + "&/td&&td&" + rs("address") + "&/td&&td&" + rs("city") + "&/td&&td&" + rs("state") + "&/td&&td&" + rs("zip") + "&/td&&/tr&"; rs.moveN
& }&& shtml += "&/table&";
& document.write(shtml);&& rs.close();&&& rs =&&& conn.close();&&& conn = &/script&
//使用数据岛
代码如下:&html&
srno：&input type=text datasrc=#xmldate DataFLD=srno size="76"&&BR&
times：&input type=text datasrc=#xmldate DataFLD=times size="76"&&BR& &input id="first" TYPE=button value="&&　第一条记录" onclick="xmldate.recordset.moveFirst()"&
&input id="prev" TYPE=button value="&上一条记录" onclick="xmldate.recordset.movePrevious()"&&&
&input id="next" TYPE=button value="下一条记录&" onclick="xmldate.recordset.moveNext()"&&&
&input id="last" TYPE=button value="最后一条记录&&" onclick="xmldate.recordset.moveLast()"&&&&
&input id="Add" TYPE=button value="添加新记录" onclick="xmldate.recordset.addNew()"&&&
&XML ID="xmldate"&
&infolist&
&info &&srno&&/srno&&times&null&/times&&/info&
&info &&srno&&/srno&&times&日2点22分0秒&/times&&/info&
&/infolist& &/XML& &/body& &/html&
//获得参数
代码如下:&body&
&a href="javascript:location.href=location.href + '?a=1&b=2'"&search&/a&
&script language="JavaScript"&
&!-- var a = location.search.substr(1); if(a.length&0) { var re = /([^&]*?)\=([^&]*)/g var s = a.match(re); for(var i= 0;i&s.i++) {
& alert(s[i]);&& alert(s[i].split("=")[1]); } } //--& &/script& &/body&
//可编辑SELECT
代码如下:&input type=text name=re_name style="width:100height:21font-size:10"&&span style="width:18border:0"&&select name="r00" style="margin-left:-100width:118 background-color:#FFEEEE;" onChange="document.all.re_name.value=this."&
&&&&&&&&&&&&&&& &option value="1"&&option&
&&&&&&&&&&&&&&& &option value="2"&222222&/option&
&&&&&&&&&&&&&&& &option value="3"&333333&/option&
&&&&&&&&&&&&& &/select&&&&&&&&&&&&&&& &/span&
//设置光标位置
代码如下:function getCaret(textbox) { var control = document.activeE
textbox.focus(); var rang = document.selection.createRange();
& rang.setEndPoint("StartToStart",textbox.createTextRange())
control.focus(); return rang.text. } function setCaret(textbox,pos) { try
{&& var r =textbox.createTextRange();
&& r.moveStart('character',pos);&&& r.collapse(true);&&& r.select(); } catch(e) {} } function selectLength(textbox,start,len) {
try {&& var r =textbox.createTextRange();&&
& r.moveEnd('character',len-(textbox.value.length-start));
& r.moveStart('character',start);&&&&& r.select(); } catch(e) {//alert(e.description)} } function insertAtCaret(textbox,text) {
textbox.focus(); document.selection.createRange().text = }
//页内查找
代码如下:function findInPage(str) { var txt, i, found,n = 0; if (str == "")
txt = document.body.createTextRange();
for (i = 0; i &= n && (found = txt.findText(str)) != i++) {&& txt.moveStart("character", 1);&& txt.moveEnd("textedit"); } if (found) {&& txt.moveStart("character", -1);&& txt.findText(str);
& txt.select();&& txt.scrollIntoView();&& n++;&& } else
{&& if (n & 0)&& {
&& n = 0;&&& findInPage(str);&& }&& else&& {
&& alert(str + "...&&&&&&&&&&& 您要找的文字不存在。\n \n请试着输入页面中的关键字再次查找！");
//操作EXECL
代码如下:&script language="javascript"& function jStartExcel() { var xls = new ActiveXObject ( "Excel.Application" ); xls.visible = var newBook = xls.Workbooks.A
newBook.Worksheets.A newBook.Worksheets(1).A
xls.ActiveWorkBook.ActiveSheet.PageSetup.Orientation = 2;
xls.ActiveWorkBook.ActiveSheet.PageSetup.PaperSize = 5;
newBook.Worksheets(1).Columns("A").columnwidth=50;
newBook.Worksheets(1).Columns("A").WrapText = newBook.Worksheets(1).Columns("B").columnwidth=50;
newBook.Worksheets(1).Columns("B").WrapText = newBook.Worksheets(1).Range("A1:B1000").NumberFormat = "0"; newBook.Worksheets(1).Range("A1:B1000").HorizontalAlignment = -4131;
newBook.Worksheets(1).Cells(1,1).Interior.ColorIndex="15";
newBook.Worksheets(1).Cells(1,1).value="First Column, First Cell";
newBook.Worksheets(1).Cells(2,1).value="First Column, Second Cell";
newBook.Worksheets(1).Cells(1,2).value="Second Column, First Cell";
newBook.Worksheets(1).Cells(2,2).value="Second Column, Second Cell";
newBook.Worksheets(1).Name="My First WorkSheet"; } &/script&
//自定义提示条
&a href="#" title="这是提示"&tip&/a&
&script Language="JavaScript"&
//***********默认设置定义.********************* tPopWait=50;//停留tWait豪秒后显示提示。 tPopShow=5000;//显示tShow豪秒后关闭提示 showPopStep=20; popOpacity=99; //***************内部变量定义***************** sPop= curShow= tFadeOut= tFadeIn= tFadeWaiting= document.write("&style type='text/css'id='defaultPopStyle'&");
document.write(".cPopText { background-color: #F8F8F5;color:#000000; border: 1px #000000font-color: font-size: 12 padding-right: 4 padding-left: 4 height: 20 padding-top: 2 padding-bottom: 2 filter: Alpha(Opacity=0)}");
document.write("&/style&");
document.write("&div id='dypopLayer' style='position:z-index:1000;' class='cPopText'&&/div&");
function showPopupText(){ var o=event.srcE MouseX=event.x;
MouseY=event.y; if(o.alt!=null && o.alt!=""){o.dypop=o.o.alt=""};
if(o.title!=null && o.title!=""){o.dypop=o.o.title=""}; if(o.dypop!=sPop) { sPop=o.
clearTimeout(curShow); clearTimeout(tFadeOut);
clearTimeout(tFadeIn); clearTimeout(tFadeWaiting); if(sPop==null || sPop=="") { dypopLayer.innerHTML=""; dypopLayer.style.filter="Alpha()"; dypopLayer.filters.Alpha.opacity=0;
} else { if(o.dyclass!=null) popStyle=o.dyclass else popStyle="cPopText"; curShow=setTimeout("showIt()",tPopWait); } } } function showIt(){
dypopLayer.className=popS dypopLayer.innerHTML=sP
popWidth=dypopLayer.clientW popHeight=dypopLayer.clientH
if(MouseX+12+popWidth&document.body.clientWidth) popLeftAdjust=-popWidth-24
else popLeftAdjust=0; if(MouseY+12+popHeight&document.body.clientHeight) popTopAdjust=-popHeight-24
else popTopAdjust=0;
dypopLayer.style.left=MouseX+12+document.body.scrollLeft+popLeftA
dypopLayer.style.top=MouseY+12+document.body.scrollTop+popTopA
dypopLayer.style.filter="Alpha(Opacity=0)"; fadeOut(); } function fadeOut(){ if(dypopLayer.filters.Alpha.opacity&popOpacity) {
dypopLayer.filters.Alpha.opacity+=showPopS tFadeOut=setTimeout("fadeOut()",1); } else {
dypopLayer.filters.Alpha.opacity=popO
tFadeWaiting=setTimeout("fadeIn()",tPopShow); } } function fadeIn(){ if(dypopLayer.filters.Alpha.opacity&0) {
dypopLayer.filters.Alpha.opacity-=1; tFadeIn=setTimeout("fadeIn()",1); } }
document.onmouseover=showPopupT &/script&
//插入文字
代码如下:document.onclick =function(){& var oSource = window.event.srcE& if(oSource.tagName!="DIV")&&
var sel = document.& if (sel!=null) {& var rng = sel.createRange();& if (rng!=null)& rng.pasteHTML("&font color=red&插入文字&/font&");&
//netscapte下操作xml
doc = new ActiveXObject("Msxml2.DOMDocument"); doc = new ActiveXObject("Microsoft.XMLDOM") -&& doc = (new DOMParser()).parseFromString(sXML,'text/xml')
//判断键值
代码如下:&html&
&meta http-equiv="Content-Type" content="text/ charset=gb2312"& &head&
&script language="javascript"&
var ie& =navigator.appName=="Microsoft Internet Explorer"?true:
&& function keyDown(e) {
if(!ie) {&& var nkey=e.&& var iekey='现在是ns浏览器';&& var realkey=String.fromCharCode(e.which); } if(ie) {&& var iekey=event.keyC&& var nkey='现在是ie浏览器';&& var realkey=String.fromCharCode(event.keyCode);&& if(event.keyCode==32){realkey='\' 空格\''}
& if(event.keyCode==13){realkey='\' 回车\''}
& if(event.keyCode==27){realkey='\' Esc\''}
& if(event.keyCode==16){realkey='\' Shift\''}
& if(event.keyCode==17){realkey='\' Ctrl\''}
& if(event.keyCode==18){realkey='\' Alt\''} }
alert('ns浏览器中键值:'+nkey+'\n'+'ie浏览器中键值:'+iekey+'\n'+'实际键为'+realkey); }
document.onkeydown = keyD &/script& &/head&
&body& //Javascript Document. &hr& &center& &h3&请按任意一个键。。。。&/h3&
&/center& &/body& &/html&
1.注销组件
regsvr32 /u scrrun.dll 2.修改PROGID&
HKEY_CLASSES_ROOT\Scripting.FileSystemObject Scripting.FileSystemObject
3.对于使用object的用户，修改HKEY_CLASSES_ROOT\Scripting.
&DIV STYLE="width: 120 height: 50 border: 1
&&&&&&&&&&& overflow: text-overflow:ellipsis"&
&NOBR&就是比如有一行文字，很长，表格内一行显示不下.&/NOBR& &/DIV&
//检测media play版本
&IE:clientCaps ID="oClientCaps" style="{behavior:url(#default#clientcaps)}" /&
&SCRIPT& var flash="";
&&& WMPVersion= oClientCaps.getComponentVersion("{22D6F312-B0F6-11D0-94AB-E95}","ComponentID");&&&&& if (WMPVersion != "") {&&&& flash = "";&&&& var version = WMPVersion.split(",");&&&&
&&& for (i = 0; i & version. i++) {&&&&&& if (i != 0)&&&& flash += ".";&&&&&& flash += version[i];&&&& }
&&&& document.write("您的Windows Media Player 版本是:"+flash+"&p&");&& } &/SCRIPT&
//图象按比例
&script language="JavaScript"& &!-- //图片按比例缩放 var flag= function DrawImage(ImgD){ var image=new Image(); var iwidth = 80; //定义允许图片宽度 var iheight = 80; //定义允许图片高度 image.src=ImgD. if(image.width&0 && image.height&0){
flag= if(image.width/image.height&= iwidth/iheight){
if(image.width&iwidth){
ImgD.width=
ImgD.height=(image.height*iwidth)/image.
ImgD.width=image.
ImgD.height=image.
ImgD.alt=image.width+"×"+image.
if(image.height&iheight){
ImgD.height=
ImgD.width=(image.width*iheight)/image.
ImgD.width=image.
ImgD.height=image.
ImgD.alt=image.width+"×"+image.
} } } //--& &/script& &img src=".." onload = "DrawImage(this)"&
//细线SELECT
&span style="border:1px solid #000000; position: overflow:" &
&select style="margin:-2"& &option&1111&/option&
&option&11&/option&
&option&&/option&
&/select&&/span&
function Import() { for( var i=0; i&arguments. i++ ) {
var file = arguments[i];
if ( file.match(/\.js$/i))
document.write('&script type=\"text/javascript\" src=\"' + file + '\"&&/sc' + 'ript&');
document.write('&style type=\"text/css\"&@import \"' + file + '\" ;&/style&');
function getComputerName() { var objWMIService = GetObject("Winmgmts:root\cimv2"); for(e = new Enumerator(objWMIService) ; !e.atEnd() ; e.moveNext())
var getComputer = e.item();
return getComputer.N }
//条件编译
&script language=javascript&
/*@cc_on @*/ /*@if (@_win32 && @_jscript_version&5)
function window.confirm(str) {
execScript("n = msgbox('"+ str +"', 257)", "vbscript");
return(n == 1); } @end @*/ &/script&
//取得innerText
&SCRIPT LANGUAGE="JavaScript"& &!-- var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.4.0"); var currN xmlDoc.async = xmlDoc.async = xmlDoc.loadXML("&TABLENAME&
你好你阿三
&/TABLENAME&");
currNode = xmlDoc.documentE
var s = currNode.
var r = /\&([^\&\s]*?)[^\&]*?\&([^\&]*?)\&\/\1\&/
var b = s.replace(r,"$2");
alert(b); //--& &/SCRIPT&
//mergeAttributes 复制所有读/写标签属性到指定元素。
function fnMerge(){
oSource.children[1].mergeAttributes(oSource.children[0]); }
&/SCRIPT& &SPAN ID=oSource& &DIV ID="oDiv" ATTRIBUTE1="true" ATTRIBUTE2="true" onclick="alert('click');" onmouseover="this.style.color='#0000FF';" onmouseout="this.style.color='#000000';" &
This is a sample &B&DIV&/B& element. &/DIV&
&DIV ID="oDiv2"&
This is another sample &B&DIV&/B& element. &/DIV&
&/SPAN& &INPUT TYPE="button" VALUE="Merge Attributes" onclick="fnMerge()" &
以上所述就是本文的全部内容了，希望大家能够喜欢。
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