javascript常用技巧

标签：function 常用 false 技巧 javascript window var document event

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
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.οnmοusedοwn=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)

//过滤数字

"return event.keyCode>=48&&event.keyCode<=57||(this.value.indexOf('.')<0?event.keyCode==46:false)" οnpaste= "return !clipboardData.getData('text').match(//D/)" οndragenter= "return false">

//特殊用途

"window.external.ImportExportFavorites(true,'http://localhost');">
<input type=button value=导出收藏夹 οnclick= "window.external.ImportExportFavorites(false,'http://localhost');">
<input type=button value=整理收藏夹 οnclick= "window.external.ShowBrowserUI('OrganizeFavorites', null)">
<input type=button value=语言设置 οnclick= "window.external.ShowBrowserUI('LanguageDialog', null)">
<input type=button value=加入收藏夹 οnclick= "window.external.AddFavorite('http://www.google.com/', 'google')">
<input type=button value=加入到频道 οnclick= "window.external.addChannel('http://www.google.com/')">
<input type=button value=加入到频道 οnclick= "window.external.showBrowserUI('PrivacySettings',null)">

//不缓存

"pragma" CONTENT= "no-cache">
<META HTTP-EQUIV= "Cache-Control" CONTENT= "no-cache, must-revalidate">
<META HTTP-EQUIV= "expires" CONTENT= "0">

//正则匹配

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：http: //([/w-]+/.)+[/w-]+(/[/w- ./?%&=]*)?
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：οnkeyup= "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： οnkeyup= "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：οnkeyup= "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：οnkeyup= "value=value.replace(/[/W]/g,'') "onbeforepaste= "clipboardData.setData('text',clipboardData.getData('text').replace(/[^/d]/g,''))"

//消除图像工具栏

//无提示关闭

//取得控件得绝对位置(1)

"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.left
oRect.

//最小化,最大化,关闭

"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 οnclick=min.Click()>
<input type=button value=最大化 οnclick=max.Click()>
<input type=button value=关闭 οnclick=close.Click()>

//光标停在文字最后

"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" οnfοcus= "cc()">

//页面进入和退出的特效

"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

"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

"page-break-after:always">page1</p>
<p style= "page-break-after:always">page2</p>

//设置打印

"factory" style= "display:none" viewastext
  classid= "clsid:1663ed61-23eb-11d2-b92f-008048fdd814"
  codebase= "http://www.meadroid.com/scriptx/ScriptX.cab#Version=5,60,0,360"
></object>
<input type=button value=页面设置 οnclick= "factory.printing.PageSetup()">
<input type=button value=打印预览 οnclick= "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" οnclick= "factory.printing.Print(false)">
<input type=button value= "页面设置" οnclick= "factory.printing.PageSetup()">
<input type=button value= "打印预览" οnclick= "factory.printing.Preview()"><br>
<a href= "http://www.meadroid.com/scriptx/docs/printdoc.htm?static"

//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:none;}
.PageNext{page-break-after: always;}
</style>
<object id= "WebBrowser" width=0 height=0 classid= "CLSID:8856F961-340A-11D0-A96B-00C04FD705A2">
</object>

<center class= "Noprint" >
<input type=button value=打印 οnclick=document.all.WebBrowser.ExecWB(6,1)>
<input type=button value=直接打印 οnclick=document.all.WebBrowser.ExecWB(6,6)>
<input type=button value=页面设置 οnclick=document.all.WebBrowser.ExecWB(8,1)>
</p>
<p> <input type=button value=打印预览 οnclick=document.all.WebBrowser.ExecWB(7,1)>
</center>

//去掉打印时的页眉页脚

"JavaScript">
var HKEY_Root,HKEY_Path,HKEY_Key;
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()
{
try
{
   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" οnclick=PageSetup_Null()>
<input type= "button" value= "恢复页码"

//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)
    return this;
}

//计算内容宽和高

"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");

}
</SCRIPT>
<BODY>
<Textarea id= "txt" height= "150">sdf</textarea><INPUT  type= "button"  value= "计算内容宽度"  onClick= "test(txt)">
</BODY>

//无模式的提示框

function modelessAlert(Msg)
{
window.showModelessDialog( "javascript:alert(/""+escape(Msg)+ "/");window.close();", "", "status:no;resizable:no;help:no;dialogHeight:height:30px;dialogHeight:40px;");
}

//屏蔽按键

<html>
<head>
  <meta http-equiv= "Content-Type" content= "text/html; 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) 2002-6-18
function document.oncontextmenu(){event.returnValue= false;} //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= false;
  }
      /* 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= false;
     }
   if (event.keyCode==122){event.keyCode=0;event.returnValue= false;}   //屏蔽F11
   if (event.ctrlKey && event.keyCode==78) event.returnValue= false;    //屏蔽 Ctrl+n
   if (event.shiftKey && event.keyCode==121)event.returnValue= false;   //屏蔽 shift+F10
   if (window.event.srcElement.tagName == "A" && window.event.shiftKey)
      window.event.returnValue = false;              //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:1px;dialogheight:1px");
       return false;
  }
}
</script>
屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键
</body>
</html>

//屏蔽打印
<style>
@media print{
* {display:none}
}
</style>

//移动的图层，拖动

this) οnmοusemοve=MouseMove() οnmοuseup=MouseUp()>meizz</span>
<script language=javascript>
var Obj;
function MouseDown(obj)
{
  Obj=obj;
  Obj.setCapture();
  Obj.l=event.x-Obj.style.pixelLeft;
  Obj.t=event.y-Obj.style.pixelTop;
}
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();
    Obj= null;
  }
}
</script>
2.
<div id= "myDiv" src= "logo.gif" οndrag= "doDrag();" οnmοuseοver= "this.style.cursor='hand'" style= "position:absolute;left=100;top=100;" οnmοusedοwn= "doMouseDown();">
<a href= "#" οnclick= "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.myDiv;

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);
}

</script>

//文档状态改变

"a.html" id= "f" name= "f" scrolling= "no" frameborder=0 marginwidth=0 marginheight=0></iframe>
<script>
var doc=window.frames[ "f"].document;
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

<HTML>
<HEAD>
<META NAME= "save" CONTENT= "history">
<STYLE>
.sHistory {behavior:url(#default#savehistory);}
</STYLE>
</HEAD>
<BODY>
<INPUT class=sHistory type=text id=oPersistInput>
</BODY>
</HTML>

//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

//setTimeout增加参数

//自定义的apply,call

function (obj, argu) {
if (obj) obj.constructor.prototype._caller = this;
var argus = new Array();
for ( var i=0;i<argu.length;i++)
  argus[i] = "argu[" + i + "]";
var r;
eval（ "r = " + (obj ? ( "obj._caller(" + argus.join( ",") + ");") : ( "this(" + argus.join( ",") + ");")));
return r;
};
Function.prototype.call = function (obj) {
var argu = new Array();
for ( var i=1;i<arguments.length;i++)
  argu[i-1] = arguments[i];
return this.apply(obj, argu);
};

//下载文件

//检验连接是否有效

//POST代替FORM

"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", "http://ServerName/VDir/TstResult.asp",false
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-4567-B8FF8A1A5739}", "componentID"))

//检查网页是否存在

//连接数据库

"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=localhost; User ID=sa; "
    + "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.moveNext;
  }
  shtml += "</table>";
  document.write(shtml);
  rs.close();
  rs = null;
  conn.close();
  conn = null;
</script>

//使用数据岛

<html>
<body>
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" οnclick= "xmldate.recordset.moveFirst()">
<input id= "prev" TYPE=button value= "<上一条记录" οnclick= "xmldate.recordset.movePrevious()">
<input id= "next" TYPE=button value= "下一条记录>" οnclick= "xmldate.recordset.moveNext()">
<input id= "last" TYPE=button value= "最后一条记录>>" οnclick= "xmldate.recordset.moveLast()">
<input id= "Add" TYPE=button value= "添加新记录" οnclick= "xmldate.recordset.addNew()">

<XML ID= "xmldate">
<infolist>
<info ><srno>20041025-01</srno><times> null</times></info>
<info ><srno>20041101-09</srno><times>2004年10月1日2点22分0秒</times></info>
</infolist>
</XML>
</body>
</html>

//获得参数

<body>
<a href= "javascript:location.href=location.href + '?a=1&b=2'">search</a>
<script language= "JavaScript">

</script>
</body>

//可编辑SELECT

"width:100px;height:21px;font-size:10pt;"><span style= "width:18px;border:0px solid red;"><select name= "r00" style= "margin-left:-100px;width:118px; background-color:#FFEEEE;" onChange= "document.all.re_name.value=this.value;">
                <option value= "1">11111111<option>
                <option value= "2">222222</option>
                <option value= "3">333333</option>
              </select>
              </span>

//设置光标位置

//页内查找

//书

http://www.itpub.net/attachment.php?s=&postid=1894598
http://www.wrclub.net/down/listdown.aspx?id=1341

//操作EXECL

"javascript">
function jStartExcel() {
var xls = new ActiveXObject ( "Excel.Application" );
xls.visible = true;
var newBook = xls.Workbooks.Add;
newBook.Worksheets.Add;
newBook.Worksheets(1).Activate;
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 = true;
newBook.Worksheets(1).Columns( "B").columnwidth=50;
newBook.Worksheets(1).Columns( "B").WrapText = true;
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

"#" 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= null;
curShow= null;
tFadeOut= null;
tFadeIn= null;
tFadeWaiting= null;
document.write( "<style type='text/css'id='defaultPopStyle'>");
document.write( ".cPopText { background-color: #F8F8F5;color:#000000; border: 1px #000000 solid;font-color: font-size: 12px; padding-right: 4px; padding-left: 4px; height: 20px; padding-top: 2px; padding-bottom: 2px; filter: Alpha(Opacity=0)}");
document.write( "</style>");
document.write( "<div id='dypopLayer' style='position:absolute;z-index:1000;' class='cPopText'></div>");

function showPopupText(){
var o=event.srcElement;
MouseX=event.x;
MouseY=event.y;
if(o.alt!= null && o.alt!= ""){o.dypop=o.alt;o.alt= ""};
if(o.title!= null && o.title!= ""){o.dypop=o.title;o.title= ""};
if(o.dypop!=sPop) {
sPop=o.dypop;
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=popStyle;
dypopLayer.innerHTML=sPop;
popWidth=dypopLayer.clientWidth;
popHeight=dypopLayer.clientHeight;
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+popLeftAdjust;
dypopLayer.style.top=MouseY+12+document.body.scrollTop+popTopAdjust;
dypopLayer.style.filter= "Alpha(Opacity=0)";
fadeOut();
}
function fadeOut(){
if(dypopLayer.filters.Alpha.opacity<popOpacity) {
dypopLayer.filters.Alpha.opacity+=showPopStep;
tFadeOut=setTimeout( "fadeOut()",1);
}
else {
dypopLayer.filters.Alpha.opacity=popOpacity;
tFadeWaiting=setTimeout( "fadeIn()",tPopShow);
}
}
function fadeIn(){
if(dypopLayer.filters.Alpha.opacity>0) {
dypopLayer.filters.Alpha.opacity-=1;
tFadeIn=setTimeout( "fadeIn()",1);
}
}
document.οnmοuseοver=showPopupText;
</script>

//插入文字

function(){
var oSource = window.event.srcElement;
if(oSource.tagName!= "DIV")
return false;
var sel = document.selection;
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

new ActiveXObject( "Msxml2.DOMDocument");
doc = new ActiveXObject( "Microsoft.XMLDOM")
->>
doc = ( new

//判断键值

<html>
<meta http-equiv= "Content-Type" content= "text/html; charset=gb2312">
<head>
<script language= "javascript">
var ie  =navigator.appName== "Microsoft Internet Explorer"? true: false;

function keyDown(e)
{
if(!ie)
{
   var nkey=e.which;
   var iekey='现在是ns浏览器';
   var realkey= String.fromCharCode(e.which);
}
if(ie)
{
   var iekey=event.keyCode;
   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 = keyDown;
</script>
</head>
<body>
//Javascript Document.
<hr>
<center>
<h3>请按任意一个键。。。。</h3>
</center>
</body>
</html>

//禁止FSO

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.

//省略号

"width: 120px; height: 50px; border: 1px solid blue;
overflow: hidden; 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

"oClientCaps" style= "{behavior:url(#default#clientcaps)}" />
<SCRIPT>
var flash= "";
    WMPVersion= oClientCaps.getComponentVersion( "{22D6F312-B0F6-11D0-94AB-0080C74C7E95}", "ComponentID");
     if (WMPVersion != "") {
    flash = "";
     var version = WMPVersion.split( ",");
     var i;
    for (i = 0; i < version.length; 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

"JavaScript">

</script>
<img src= ".." onload = "DrawImage(this)">

//细线SELECT

span style="border:1px solid #000000; position:absolute; overflow:hidden;">
< select style="margin:-2px;">
< option>1111< /option>
< option>11111111111111< /option>
< option>111111111< /option>
< /select>< /span>

//Import

function Import() {
for( var i=0; i<arguments.length; i++ ) {
   var file = arguments[i];
   if ( file.match(//.js$/i))
   document.write('<script type=/"text/javascript/ " src=/"' + file + '/"></sc' + 'ript>');
  else
   document.write('<style type=/"text/css/">@import /"' + file + '/" ;</style>');
}
};

//js枚举

function getComputerName()
{
var objWMIService = GetObject( "Winmgmts:root/cimv2");
for(e = new Enumerator(objWMIService) ; !e.atEnd() ; e.moveNext())
{
var getComputer = e.item();
return getComputer.Name;
}
}

//条件编译

//取得innerText

"JavaScript">

</SCRIPT>

//mergeAttributes 复制所有读/写标签属性到指定元素。

<SCRIPT>
function fnMerge(){
oSource.children[1].mergeAttributes(oSource.children[0]);
}
</SCRIPT>
<SPAN ID=oSource>
<DIV
ID= "oDiv"
ATTRIBUTE1= "true"
ATTRIBUTE2= "true"
οnclick= "alert('click');"
οnmοuseοver= "this.style.color='#0000FF';"
οnmοuseοut= "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"
οnclick= "fnMerge()"
>

标签：function,常用,false,技巧,javascript,window,var,document,event
From： https://blog.51cto.com/javaalpha/5892762

javascript常用技巧

javascript常用技巧

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