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Tag:验证,特效,入门,实例,验证,表单,特效,正则表达式,跑马灯,document,函数,代码,getElementByID,菜单,图片,视频教程

javascript技巧总结(二)

文章类别:Javascript | 发表日期:2010-3-21 10:25:36

//操作EXECL

<script language="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>
    提示:您可以先修改部分代码再运行
//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=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.onmouseover=showPopupText;
</script>
    提示:您可以先修改部分代码再运行
//插入文字

document.onclick =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
doc = new ActiveXObject("Msxml2.DOMDocument");
doc = new ActiveXObject("Microsoft.XMLDOM")
->>
doc = (new DOMParser()).parseFromString(sXML,'text/xml')
//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>
    提示:您可以先修改部分代码再运行
//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

<DIV STYLE="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>
    提示:您可以先修改部分代码再运行
//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-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>
    提示:您可以先修改部分代码再运行
//图象按比例

<script language="JavaScript">
<!--
//图片按比例缩放
var flag=false;
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.src;
 if(image.width>0 && image.height>0){
 flag=true;
 if(image.width/image.height>= iwidth/iheight){
  if(image.width>iwidth){  
  ImgD.width=iwidth;
  ImgD.height=(image.height*iwidth)/image.width;
  }else{
  ImgD.width=image.width;  
  ImgD.height=image.height;
  }
  ImgD.alt=image.width+"&#215;"+image.height;
  }
 else{
  if(image.height>iheight){  
  ImgD.height=iheight;
  ImgD.width=(image.width*iheight)/image.height;  
  }else{
  ImgD.width=image.width;  
  ImgD.height=image.height;
  }
  ImgD.alt=image.width+"&#215;"+image.height;
  }
 }

//-->
</script>
<img src=".." onload = "DrawImage(this)">
    提示:您可以先修改部分代码再运行
//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>
    提示:您可以先修改部分代码再运行
//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

<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>
    提示:您可以先修改部分代码再运行
//取得innerText

<SCRIPT LANGUAGE="JavaScript">
<!--
 var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.4.0");
 var currNode;
 xmlDoc.async = false;
 xmlDoc.async = false;
 xmlDoc.loadXML("<TABLENAME>      你好你阿三    大法     司法等四              </TABLENAME>");
 currNode = xmlDoc.documentElement;
   
  var s = currNode.xml;
  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。
<SCRIPT>
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()"
>
    提示:您可以先修改部分代码再运行
检查链接是否有效

<a href="http://www.pconline.com.cn/welcome.asp" onclick="mm(this, 'http://www.pconline.com.cn/')">test</a>
<script language="javascript">
function getURL(url)
{
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
xmlhttp.open("GET",url,false);
xmlhttp.send();
if (xmlhttp.readyState==4) return xmlhttp.Status==200;
return false;
}
function mm(e, url)
{
if(!getURL(e.href)) e.href = url;
}
</script>
    提示:您可以先修改部分代码再运行
判断是否输入值再激活按钮

<script>
function check(){
s.disabled = (t1.value == '' || t2.value == '' || t3.value == '')
}
</script>
<input name="t1" onpropertychange="check();">
<input name="t2" onpropertychange="check();">
<input name="t3" onpropertychange="check();">
<input type="submit" name="s" disabled>
    提示:您可以先修改部分代码再运行
屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键

<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>
    提示:您可以先修改部分代码再运行
自定义热键(请按a)

自定义热键(请按a)
<SCRIPT language="JavaScript">
<!--
var hotkey=97
var destination="http://www.wyev.com"
if (document.layers)
document.captureEvents(Event.KEYPRESS)
function backhome(e){
if (document.layers){
if (e.which==hotkey)
window.location=destination
}
else if (document.all){
if (event.keyCode==hotkey)
window.location=destination
}
}
document.onkeypress=backhome
//-->
</SCRIPT>
下面的是用javascript传递参数。如果本文件为test.htm,如果访问 test.htm?12 则javascript会得到?后的值并用document.all替换iframe的src值。

<iframe height="750" width="760" scrolling="no" src="view.jsp" id="u" frameborder="0"></iframe>
<script language="javascript">
var url=window.location.href;
var s=url.indexOf("?");
if(s!=-1)
{
    var src=url.substring(s+1);
    document.all.u.src="view.jsp?id="+src;
   
}
</script>

 

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