js技巧收集(200多个) (转)-阿里云开发者社区

1.文本框焦点问题

onBlur:当失去输入焦点后产生该事件

onFocus:当输入获得焦点后，产生该文件

Onchange:当文字值改变时，产生该事件

Onselect:当文字加亮后，产生该文件

< input type ="text" value ="郭强" onfocus ="if(value=='郭强') {value=''}" onblur ="if

(value=='') {value='郭强'}" > 点击时文字消失，失去焦点时文字再出现

2.网页按钮的特殊颜色

< input type =button name ="Submit1" value ="郭强" size =10 class =s02

style ="background-color:rgb(235,207,22)" >

3.鼠标移入移出时颜色变化

< input type ="submit" value ="找吧" name ="B1" onMouseOut =this.style.color="blue"

onMouseOver =this.style.color="red" class ="button" >

4.平面按钮

< input type =submit value =订阅 style ="border:1px solid :#666666; height:17px; width:25pt; font-size:9pt;

BACKGROUND-COLOR: #E8E8FF; color:#666666" name ="submit" >

5.按钮颜色变化

< input type =text name ="nick" style ="border:1px solid #666666; font-size:9pt; height:17px;

BACKGROUND-COLOR: #F4F4FF; color:#ff6600" size ="15" maxlength ="16" >

6.平面输入框

< input type ="text" name ="T1" size ="20" style ="border-style: solid; border-width: 1" >

7.使窗口变成指定的大小

< script >

window.resizeTo(300,283);

</ script >

8.使文字上下滚动

< marquee direction =up scrollamount =1 scrolldelay =100 onmouseover ='this.stop()' onmouseout ='this.start()'

height =60 >

< tr >

< td >

共和国

</ table >

</ marquee >

9.状态栏显示该页状态

< base onmouseover ="window.status='网站建设 http://www.webmake.cn/' ;return true" >

10.可以点击文字实现radio选项的选定

< br >

     < input type ="radio" name ="regtype" value ="A03" id ="A03" >

< label for ="A03" > 情侣 : 一次注册两个帐户 </ label > < br >

11.可以在文字域的font写onclick事件

12.打印 </ a > 打印网页

< a href ='javascript:window.print ()' >

13.线型输入框

< input type ="text" name ="key" size ="12" value ="关键字" onFocus =this.select() onMouseOver =this.focus()

class ="line" >

14.显示文档最后修改日期

< script language =javascript >

function hi(str)

{

document.write(document.lastModified)

alert("hi"+str+"!")

}

</ script >

15.可以在鼠标移到文字上时就触发事件

< html >

< head >

< script language ="LiveScript" >

<!-- Hiding

function hello() {

alert("哈罗!");

}

</ script >

</ head >

< body >

< a href ="" onMouseOver ="hello()" > link </ a >

</ body >

</ html >

16.可以根据网页上的选项来确定页面颜色

< HTML >

< HEAD >

< TITLE > background.html </ TITLE >

</ HEAD >

< SCRIPT >

<!--

function bgChange(selObj) {

newColor = selObj.options[selObj.selectedIndex].text;

document.bgColor = newColor;

selObj.selectedIndex = -1;

}

//-->

</ SCRIPT >

< BODY STYLE ="font-family:Arial" >

< B > Changing Background Colors </ B >

< BR >

< FORM >

< SELECT SIZE ="8" onChange ="bgChange(this);" >

< OPTION > Red

< OPTION > Orange

< OPTION > Yellow

< OPTION > Green

< OPTION > Blue

< OPTION > Indigo

< OPTION > Violet

< OPTION > White

< OPTION > pink

</ SELECT >

</ FORM >

</ BODY >

</ HTML >

17.将按钮的特征改变

< style type ="text/css" >

<!--

.style1 { font-size: 12px; background: #CCCCFF; border-width: thin thin thin thin; border-color: #CCCCFF

#CCCCCC #CCCCCC #CCCCFF}

.style2 { font-size: 12px; font-weight: bold; background: #CCFFCC; border-width: thin medium medium thin;

border-color: #CCFF99 #999999 #999999 #CCFF99}

-->

</ style >

　　本例按钮的代码如下：

< input type ="submit" name ="Submit" value ="提交" onmouseover ="this.className='style2'"

onmouseout ="this.className='style1'" class ="style1" >

18.改变按钮的图片.

< style type ="text/css" >

<!--

.style3 { font-size: 12px; background: url(image/buttonbg1.gif); border: 0px; width: 60px; height: 22px}

.style4 { font-size: 12px; font-weight: bold; background: url(image/buttonbg2.gif); border: 0px 0; width:

60px; height: 22px}

-->

</ style >

　　本例的按钮代码如下：

< input type ="submit" name ="Submit2" value ="提交" onmouseover ="this.className='style4'"

onmouseout ="this.className='style3'" class ="style3" >

19.打印页面

< div align ="center" >< a class =content href ="javascript:doPrint();" > 打印本稿 </ a ></ div >

20.可以直接写html语言

document.write("");

21.改变下拉框的颜色

< select name ="classid"

onChange ="changelocation(document.myform.classid.options[document.myform.classid.selectedIndex].value)"

size ="1" style ="color:#008080;font-size: 9pt" >

22.转至目标URL

window.location="http://guoguo"

23.传递该object的form

UpdateSN('guoqiang99267',this.form)

function UpdateSN(strValue,strForm)

{

strForm.SignInName.value = strValue;

return false;

}

24.文字标签

< label for ="AltName4" >< input name ="AltName" type ="RADIO" tabindex ="931" id ="AltName4"

> guoqiang99859 </ label >

25.layer2为组件的ID，可以控制组件是否可见

document.all.item('Layer2').style.display = "block";

document.all.item('Layer2').style.display = "none";//

26.将页面加入favorite中

< script language =javascript >

<!--

function Addme(){

url = "http://your.site.address"; //你自己的主页地址

title = "Your Site Name"; //你自己的主页名称

window.external.AddFavorite(url,title);

-->

</ script > //

27.过10秒自动关闭页面

< script language ="JavaScript" >

function closeit() {

setTimeout("self.close()"，10000)

}

< /script >

28.可以比较字符的大小

char=post.charAt(i);

if(!('0' < =char &&char< ='9'))

29.将字符转化为数字

month = parseInt(char)

30.点击value非空的选项时转向指定连接

< option selected > 主办单位 </ option >

< option > ----------------- </ option >

< option value ="http://www.bjd.com.cn/" > 北京日报 </ option >

< option value ="http://www.ben.com.cn/" > 北京晚报 </ option >

</ select >

31.改变背景颜色

< td width =* class =dp bgColor =#FAFBFC onmouseover ="this.bgColor='#FFFFFF';"

onmouseout ="this.bgColor='#FAFBFC';" >

32.改变文字输入框的背景颜色

< style >

.input2 {background-image: url('../images/inputbg.gif'); font-size: 12px; background-color:

#D0DABB;border-top-width:1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px}

</ style >

< input name =content type =text size ="47" class ="input2" maxlength ="50" >

33.改变水平线的特征

< hr size ="0" noshade color ="#C0C0C0" >

34.传递参数的方式

< a href ="vote.asp?CurPage=8&id=3488" > 8 </ a >

35.页内跳转

< a href ="#1" > 1 </ a >

< a href ="#2" > 2 </ a >

< a href ="#3" > 3 </ a >

< a href ="#4" > 4 </ a >

< a href ="#5" > 5 </ a >

< a href ="#6" > 6 </ a >

< a href ="#7" > 7 </ a >

< a name ="1" > dfdf </ a >

< a name ="2" > dfdf </ a > //

36.两个按键一起按下

if(event.ctrlKey && window.event.keyCode==13)//

37.刷新页面

javascript:this.location.reload()//

38.将网页的按钮使能

< SCRIPT LANGUAGE ="JavaScript" >

function haha()

{

for(var i=0;i<document.form1.elements.length;i++)

{

if(document.form1.elements[i].name.indexOf("bb")!=-1)

document.form1.elements[i].disabled=!document.form1.elements[i].disabled;

}

</ SCRIPT >

< BODY >< form name =form1 >

< INPUT TYPE ="button" NAME ="aa " value =cindy onclick =haha() >

< INPUT TYPE ="button" NAME ="bb " value =guoguo >

39.文字移动

< marquee scrollamount =3 onmouseover =this.stop(); onmouseout =this.start(); >

40.双击网页自动跑

< SCRIPT LANGUAGE ="JavaScript" >

var currentpos,timer;

function initialize()

{

timer=setInterval("scrollwindow()",1);

}

function sc()

{

clearInterval(timer);

}

function scrollwindow()

{

currentpos=document.body.scrollTop;

window.scroll(0,++currentpos);

if (currentpos != document.body.scrollTop)

sc();

}

document.onmousedown=sc

document.ondblclick=initialize

</ SCRIPT > //

41.后退

< INPUT TYPE ="button" onclick =window.history.back() value =back >

42.前进

< INPUT TYPE ="button" onclick =window.history.forward() value =forward >

43.刷新

< INPUT TYPE ="button" onclick =document.location.reload() value =reload >

44.转向指定网页

document.location="http://ww"或者document.location.assign("http://guoguo.com")

45.在网页上显示实时时间

< SCRIPT LANGUAGE ="JavaScript" >

var clock_id;

window.onload=function()

{

clock_id=setInterval("document.form1.txtclock.value=(new Date);",1000)

}

</ SCRIPT > //

46.可以下载文件

document.location.href="目标文件"//

47.连接数据库

import java.sql.*;

String myDBDriver="sun.jdbc.odbc.JdbcOdbcDriver";

Class.forName(myDBDriver);

Connection conn=DriverManager.getConnection("jdbc:odbc:firm","username","password");

Statement stmt=conn.createStatement();

ResultSet rs=stmt.executeQuery(sql);

rs.getString("column1");//

48.可以直接在页面“div”内写下所需内容

< INPUT TYPE ="button" onclick ="a1.innerHTML='<font color=red>*</font>'" >

< div id =a1 ></ div > //

49.可以改变页面上的连接的格式，使其为双线

< style >

A:link {text-decoration: none; color:#0000FF; font-family: 宋体}

A:visited {text-decoration: none; color: #0000FF; font-family: 宋体}

A:hover {text-decoration: underline overline; color: FF0000}

</ style >

< style >

A:link {text-decoration: none; color:#0000FF; font-family: 宋体}

A:visited {text-decoration: none; color: #0000FF; font-family: 宋体}

A:hover {text-decoration: underline overline line-through; color: FF0000}

TH{FONT-SIZE: 9pt}

TD{FONT-SIZE: 9pt}

body {SCROLLBAR-FACE-COLOR: #A9D46D; SCROLLBAR-HIGHLIGHT-COLOR: #e7e7e7;SCROLLBAR-SHADOW-COLOR:#e7e7e7;

SCROLLBAR-3DLIGHT-COLOR: #000000; LINE-HEIGHT: 15pt; SCROLLBAR-ARROW-COLOR: #ffffff;

SCROLLBAR-TRACK-COLOR: #e7e7e7;}

INPUT{BORDER-TOP-WIDTH: 1px; PADDING-RIGHT: 1px; PADDING-LEFT: 1px; BORDER-LEFT-WIDTH: 1px; FONT-SIZE:

9pt; BORDER-LEFT-COLOR: #cccccc;

BORDER-BOTTOM-WIDTH: 1px; BORDER-BOTTOM-COLOR: #cccccc; PADDING-BOTTOM: 1px; BORDER-TOP-COLOR: #cccccc;

PADDING-TOP: 1px; HEIGHT: 18px; BORDER-RIGHT-WIDTH: 1px; BORDER-RIGHT-COLOR: #cccccc}

DIV,form ,OPTION,P,TD,BR{FONT-FAMILY: 宋体; FONT-SIZE: 9pt}

textarea, select {border-width: 1; border-color: #000000; background-color: #efefef; font-family: 宋体;

font-size: 9pt; font-style: bold;}

.text { font-family: "宋体"; font-size: 9pt; color: #003300; border: #006600 solid; border-width: 1px 1px

1px 1px}

</ style > 完整的css

50.新建frame

< a

href ="javascript:newframe('http://www.163.net/help/a_little/index.html','http://www.163.net/help/a_little

/a_13.html')" >< img alt =帮助 border =0 src ="http://bjpic.163.net/images/mail/button-help.gif" ></ a >

51.向文件中写内容

<% @ page import="java.io.*" %>

String str = "print me";

//always give the path from root. This way it almost always works.

String nameOfTextFile = "/usr/anil/imp.txt";

try

{

PrintWriter pw = new PrintWriter(new FileOutputStream(nameOfTextFile));

pw.println(str);

//clean up

pw.close();

}

catch(IOException e)

{

out.println(e.getMessage());

}

52.先读文件再写文件

<% @ page language = "java" %>

<% @ page contentType = "text/html; charSet=gb2312" %>

<% @ page import ="java.util.*" %>

<% @ page import ="java.lang.*" %>

<% @ page import ="javax.servlet.*" %>

<% @ page import ="javax.servlet.jsp.*" %>

<% @ page import ="javax.servlet.http.*" %>

<% @ page import="java.io.*" %>

eryrytry

int count=0;

FileInputStream fi =new FileInputStream ("count.txt");

ObjectInputStream si= new ObjectInputStream (fi);

count =si.readInt();

count++;

out.print(count);

si.close();

FileOutputStream fo =new FileOutputStream ("count.txt");

ObjectOutputStream so= new ObjectOutputStream (fo);

so.writeInt(count);

so.close();

53.直线型输入框

< INPUT name =Password size =10 type =password style ="border-left-width: 0; border-right-width: 0;

border-top-width: 0; border-bottom-style: solid; border-bottom-width: 1; background-color: #9CEB9C" >

54.可以将背景改为按钮性状，通过改变css改变属性

< td width ="65" align ="center" bgcolor ="#E0E0E0" onmouseover =this.className='mouseoverbt';

onmouseout =this.className='mouseout'; >< a href ="tm.asp?classid=76" >< font

color ="#000000" > 录音笔 </ font ></ a ></ td >

< style >

.mouseoverbt

{

background-image: url(http://www.yongle.com.cn/img/btbgw64h20y.gif);

background-repeat: no-repeat;

}

.mouseout

{

background-color: #E0E0E0;

}

</ style >

55.同时按下CTRL和Q键

document.onkeydown=function()

{

if(event.ctrlKey& &event .keyCode==81)

{alert(1)}

}//

56.以下是一个完整的显示hint的代码，其思想是当鼠标停留是将div中的内容显示在鼠标出，当鼠标移出后在将该div隐

藏掉

---------------------------------------------------------------------------------------------------------

------------

<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >

< HTML >

< style >

#hint{

width:198px;

border:1px solid #000000;

background:#99ff33;

position:absolute;

z-index:9;

padding:6px;

line-height:17px;

text-align:left;

top: 1520px;

}

</ style >

< SCRIPT LANGUAGE ="JavaScript" >

<!--

function showme()

{

var oSon=window.document.getElementById("hint");

if (oSon==null) return;

with (oSon)

{

innerText=guoguo.value;

style.display="block";

style.pixelLeft=window.event.clientX+window.document.body.scrollLeft+6;

style.pixelTop=window.event.clientY+window.document.body.scrollTop+9;

}

function hidme()

{

var oSon=window.document.getElementById("hint");

if (oSon==null) return;

oSon.style.display="none";

}

//-->

</ SCRIPT >

< BODY >

< text id =guoguo value =ga >

< a href =# onmouseover =showme() onmouseout =hidme() onmousemove =showme() son =hint > dfdfd </ a >

< div id =hint style ="display:none" ></ div >

</ BODY >

</ HTML >

---------------------------------------------------------------------------------------------------------

------------

57.弹出窗口

方法一： < body onload ="openwen()" > 浏览器读页面时弹出窗口；

方法二： < body onunload ="openwen()" > 浏览器离开页面时弹出窗口；

方法三：用一个连接调用： < a href ="#" onclick ="openwin()" > 打开一个窗口 </ a >

注意：使用的"#"是虚连接。

方法四：用一个按钮调用： < input type ="button" onclick ="openwin()" value ="打开窗口" > 何时装载script

58.动态改变字体的大小

function doZoom(size)

{

document.getElementById('zoom').style.fontSize=size+'px'

}

function aa()

{

var newWin=window.open(url);

newWin.document.form1.text1.value=value1;

}改变弹出窗口上域的属性

opener.document.form2.text2.value=value2;改变父窗口的域的值

59.判断是何种浏览器

var name = navigator.appName;

if (name == "Microsoft Internet Explorer")

alert("IE");

else if (name == "Netscape")

alert("NS");//

60.vbsscript确定框

< script language ="VBScript" >

<!--

MsgBox "确定删除吗？", 4

//-->

</ script > //

61.复制内容到剪切板

function JM_cc(bb)

{

var ob=eval("document.form1."+bb);

ob.select();

js=ob.createTextRange();

js.execCommand("Copy");

}//

62.java中建立数据库连接取数据

public void init()

{

String url="jdbc:odbc:javadata";

try

{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

Connection con=DriverManager.getConnection(url,"sa","");//mssql database user SA and password

DatabaseMetaData dma=con.getMetaData();

System.out.println("Connect to"+dma.getURL());

System.out.println(";Driver "+dma.getDriverName());

System.out.println(";Version "+dma.getDriverVersion());

System.out.println("");

Statement stmt=con.createStatement();

ResultSet rs=stmt.executeQuery("select * from company.dbo.TB_NAME where number=1");//Sql

rs.next();

String dispresult=rs.getString("name");

System.out.println(dispresult);// Instead,you can display it in Paint() or use AWT etc.

rs.close();

stmt.close();

con.close();

}

catch(SQLException ex)

{

System.out.println("!!!SQL Exception !!!");

while(ex!=null)

{

System.out.println("SQLState:"+ex.getSQLState());

System.out.println("Message:"+ex.getMessage());

System.out.println("Vendor:"+ex.getErrorCode());

ex=ex.getNextException();

System.out.println("");

}

catch(java.lang.Exception ex)

{

ex.printStackTrace();

}

}//

63.最小化窗口

window.blur()//

64.文档的路径

document.URL//

65.定时执行某段程序

setTimeout("change_color()",600);

66.设置为主页

function makeHome(){

netscape.security.PrivilegeManager.enablePrivilege("UniversalPreferencesWrite");

navigator.preference("browser.startup.homepage", location.href);

}//

67.设置为收藏

function addFav(){

if(ie)

window.external.AddFavorite(location.href,'WWW.OGRISH.COM : GROTESQUE MOVIES AND PICTURES');

if(ns)

alert("Thanks for the bookmark!\n\nNetscape users click OK then press CTRL-D");

}//

68.判断cookie是否可用

navigator.cookieEnabled;//

69.显示有模式的有页面的弹出窗口

function setbgcolor_onclick()

{

var color = showModalDialog("/mailpage/compose/colorsel.html",0,"help=0");

if (color != null)

{

document.compose.bgcolor.value = color;

}

}//

70.截取小数点后两位

var a=3454545.4454545;

alert(a.toFixed(2));//

71.禁止选择页面上的文字来拷贝

< script >

function noEffect() {

with (event) {

returnValue = false;

cancelBubble = true;

}

return;

}

</ script >

< body onselectstart ="noEffect()" oncontextmenu ="noEffect()" > //

72.屏蔽右键菜单

oncontextmenu="event.returnValue = false"//

73.事件禁止起泡

event.cancelBubble = true//

74.禁止在输入框打开输入法

< input style ="ime-mode: disabled" > //

75.屏蔽汉字和空格

< input name ="txt" >< input type ="submit" onClick ="alert(!/[^ -}]|\s/.test(txt.value))" > //

76.用javascript判断文件是否存在

function Exists(filespec)

{

if (filespec)

{

var fso;

fso = new ActiveXObject("Scripting.FileSystemObject");

alert(fso.FileExists(filespec));

}

选择图片 < input type =file name =f1 >< p >

< input type ="submit" onClick ="Exists(f1.value)" > //

77.获得当前的文本框选中的文字

< input onmouseup ="alert(document.selection.createRange().text)" value =123 > //

78.跳转至目标页面，同时不可返回

< a href ="javascript:location.replace('http://www.sohu.com/')" > sohu.com </ a > //

79.获得当前的行是表格的第几行

< script >

function getrow(obj)

{

if(event.srcElement.tagName=="TD"){

curRow=event.srcElement.parentElement;

alert("这是第"+(curRow.rowIndex+1)+"行");

}

</ script >

< table border ="1" width ="100%" onclick =getrow(this) >

< tr >

< td width ="20%" > 　 </ td >

</ tr >

< tr >

< td width ="20%" > 　 </ td >

</ tr >

</ table > //

80.删除表格某行，xx表示某行，下标从0开始计算

document.all.myTable.deleteRow(xx)//

81.动态的向表格中添加行

< table id ="t1" border ="1" >

</ table >

< script language ="JavaScript" >

function add()

{

t1.insertRow().insertCell().innerHTML = '<input name="test'+t1.rows.length+'">';

}//

82.event.x,event.clientX,event.offsetX区别：

x:设置或者是得到鼠标相对于目标事件的父元素的外边界在x坐标上的位置。 clientX:相对于客户区域的x坐标位置，不

包括滚动条，就是正文区域。 offsetx：设置或者是得到鼠标相对于目标事件的父元素的内边界在x坐标上的位置。

screenX:相对于用户屏幕。

83.显示是鼠标按钮的哪个

<body onMouseDown="alert(event.button)">点Mouse看看//

84.打开C盘

<form action="file:///c|/"><input type="submit" value="c:\ drive"></form>//

85.当前屏幕的分辨率

screen.width、screen.height//

86.设置表格中的内容

tbl.rows[0].cells[1].innerText=document.form.text1.value;//

87.本地快捷键

<p><a href="file:///::{20D04FE0-3AEA-1069-A2D8-08002B30309D}\::{21EC2020-3AEA-1069-A2DD-08002B30309D}"

target="_blank">控制面板</a></p>

<p><a href="file:///::{7007ACC7-3202-11D1-AAD2-00805FC1270E}">拨号网络</a>(windows 2000)</p>

88.IE菜单

<button onclick="min.Click()"><font face="webdings">0</font></button>//改变按钮上的图片

<input type=button onclick="document.execCommand('CreateLink','true','true')"> //创建新连接

<input type=button onclick="document.execCommand('print','true','true')"> //打印

<input type=button onclick="document.execCommand('saveas','true','网站制作.htm')">//另存为htm

<input type=button onclick="document.execCommand('saveas','true','网站制作.txt')">//另存为txt

document.execCommand("SaveAs")//保存为

document.execCommand('undo')//撤销上一次操作

89.web对话框

var contents='<style>body,td{font:menu}img{cursor:hand}</style>';

contents+='<title>你要关闭我吗</title>';

contents+='<body bgcolor=menu>';

contents+='<table width=100% height=100% border=0>';

contents+='<tr><td align=center>';

contents+='你要关闭我吗？<br>';

contents+='<img src=dark.gif onclick=self.close() alt="

关闭">';

contents+='<img src=jet.gif onclick=self.close() alt="全是关闭">';

contents+='</td></tr></table>';

showModalDialog("about:"+contents+"","","dialogHeight:50px;dialogWidth:250px;help:no;status:no")

document.write(contents);

</ SCRIPT > //

90.取第x,y的值

< button onclick ="t1.rows[x].cells[y].innerText='guoguo'" ></ button > //

91.向新打开的网页上写内容

newwin=window.open('about:blank','','top=10');

newwin.document.write('');//

93.返回

javascript:history.go(-2);//

94.将页面上选中的内容复制到剪贴板

abcdefg

< input type ='button'

onclick ="window.clipboardData.setData('text',document.selection.createRange().text);" value ='复制页面选中

的字符' > //

95.将页面上选中的内容复制到剪贴板

< INPUT TYPE ="text" NAME ="" > kjhkjhkhkj < INPUT TYPE ="button" onclick ="document.execCommand('Copy', 'false',

null);" > ////

96.鼠标移到下拉框时自动全部打开

< select onmouseover ="javascript:this.size=this.length" onmouseout ="javascript:this.size=1" ></ select > //

97.获得本机的文件

var fso = new ActiveXObject("Scripting.FileSystemObject");

var f1 = fso.GetFile("C:\\bsitcdata\\ejbhome.xml");

alert("File last modified: " + f1.DateLastModified); //

98.判断客户端是否是IE浏览器

因为 document.all 是 IE 的特有属性，所以通常用这个方法来判断客户端是否是IE浏览器 ,document.all?1:0;

99.创建新的下拉框选项

new Option(text,value)这样的函数//

100.在页面上画柱状图

< STYLE >

td{font-size:12px}

body{font-size:12px}

v\:*{behavior:url(#default#VML);} //这里声明了v作为VML公用变量

</ STYLE >

< SCRIPT LANGUAGE ="JavaScript" >

mathstr=12;

document.write ("<v:rect fillcolor='red'

style='width:20;color:navy;height:"+5000/(1000/mathstr)+"'><br> %"+mathstr+"<br>4人<v:Extrusion

backdepth='15pt' on='true'/></v:rect>")

</ SCRIPT >

< v:rect fillcolor ='red' style ='width:20;color:navy;height:200' >< br > %12 < br > 4人 < v:Extrusion

backdepth ='15pt' on ='true' /></ v:rect >

< v:rect fillcolor ='yellow' style ='width:20;color:navy;height:100' >< br > %12 < br > 4人 < v:Extrusion

backdepth ='15pt' on ='true' /></ v:rect > //

101.饼图

< style >

v\:* { behavior: url(#default#VML) }

o\:* { behavior: url(#default#VML) }

.shape { behavior: url(#default#VML) }

</ style >

< script language ="javascript" >

function show(pie)

{

pie.strokecolor=pie.fillcolor;

pie.strokeweight=10;

div1.innerHTML="<font size=2 color=red> " + pie.id +"</font> <font size=2>" + pie.title + "</font>";

}

function hide(pie)

{

pie.strokecolor="white";

pie.strokeweight=1;

div1.innerHTML="";

}

</ script >

</ head >

< body >

< v:group style ='width: 5cm; height: 5cm' coordorigin ='0,0' coordsize ='250,250' >

< v:shape id ='asp技术' style ='width:10;height:10;top:10;left:0' title ='得票数:6 比例:40.00%'

onmouseover ='javascript:show(this);' onmouseout ='javascript:hide(this);' href ='http://www.cnADO.com'

CoordSize ='10,10' strokecolor ='white' fillcolor ='#ffff33' >< v:path v ='m 300,200 ae

300,200,200,150,0,9437184 xe' /></ v:shape >

< v:shape id ='php' style ='width:10;height:10;top:10;left:0' title ='得票数:1 比例:6.67%'

onmouseover ='javascript:show(this);' onmouseout ='javascript:hide(this);' href ='http://www.cnADO.com'

CoordSize ='10,10' strokecolor ='white' fillcolor ='#ff9933' >< v:path v ='m 300,200 ae

300,200,200,150,9437184,1572864 xe' /></ v:shape >

< v:shape id ='jsp' style ='width:10;height:10;top:10;left:0' title ='得票数:2 比例:13.33%'

onmouseover ='javascript:show(this);' onmouseout ='javascript:hide(this);' href ='http://www.cnADO.com'

CoordSize ='10,10' strokecolor ='white' fillcolor ='#3399ff' >< v:path v ='m 300,200 ae

300,200,200,150,11010048,3145728 xe' /></ v:shape >

< v:shape id ='c#写的.netWEB程序' style ='width:10;height:10;top:10;left:0' title ='得票数:3 比例:20.00%'

onmouseover ='javascript:show(this);' onmouseout ='javascript:hide(this);' href ='http://www.cnADO.com'

CoordSize ='10,10' strokecolor ='white' fillcolor ='#99ff33' >< v:path v ='m 300,200 ae

300,200,200,150,14155776,4718592 xe' /></ v:shape >

< v:shape id ='vb.net写的.netWEB程序' style ='width:10;height:10;top:10;left:0' title ='得票数:2 比例:13.33%'

onmouseover ='javascript:show(this);' onmouseout ='javascript:hide(this);' href ='http://www.cnADO.com'

CoordSize ='10,10' strokecolor ='white' fillcolor ='#ff6600' >< v:path v ='m 300,200 ae

300,200,200,150,18874368,3145728 xe' /></ v:shape >

< v:shape id ='xml技术' style ='width:10;height:10;top:10;left:0' title ='得票数:1 比例:6.67%'

onmouseover ='javascript:show(this);' onmouseout ='javascript:hide(this);' href ='http://www.cnADO.com'

CoordSize ='10,10' strokecolor ='white' fillcolor ='#ff99ff' >< v:path v ='m 300,200 ae

300,200,200,150,22020096,1572864 xe' /></ v:shape >

</ v:group >

< v:group style ='width: 6cm; height: 6cm' coordorigin ='0,0' coordsize ='250,250' >

< v:rect style ='height:10;width:15;top:0;left:10' fillcolor ='#ffff33' />

< v:rect style ='height:28;width:100;top:0;left:30' stroked ='false' >< v:textbox

style ='fontsize:2' > asp技术 </ v:textbox/ ></ v:rect >

< v:rect style ='height:10;width:15;top:30;left:10' fillcolor ='#ff9933' />

< v:rect style ='height:28;width:100;top:30;left:30' stroked ='false' >< v:textbox

style ='fontsize:2' > php </ v:textbox/ ></ v:rect >

< v:rect style ='height:10;width:15;top:60;left:10' fillcolor ='#3399ff' />

< v:rect style ='height:28;width:100;top:60;left:30' stroked ='false' >< v:textbox

style ='fontsize:2' > jsp </ v:textbox/ ></ v:rect >

< v:rect style ='height:10;width:15;top:90;left:10' fillcolor ='#99ff33' />

< v:rect style ='height:28;width:100;top:90;left:30' stroked ='false' >< v:textbox

style ='fontsize:2' > c#写的.netWEB程序 </ v:textbox/ ></ v:rect >

< v:rect style ='height:10;width:15;top:120;left:10' fillcolor ='#ff6600' />

< v:rect style ='height:28;width:100;top:120;left:30' stroked ='false' >< v:textbox style ='fontsize:2' > vb.net

写的.netWEB程序 </ v:textbox/ ></ v:rect >

< v:rect style ='height:10;width:15;top:150;left:10' fillcolor ='#ff99ff' />

< v:rect style ='height:28;width:100;top:150;left:30' stroked ='false' >< v:textbox style ='fontsize:2' > xml技术

</ v:textbox/ ></ v:rect >

</ v:group >

< div style ="position: absolute; left: 10; top: 10; width: 760; height:16" >

< table border ="1" cellpadding ="2" cellspacing ="2" cellpadding ="0" cellspacing ="0"

style ="border-collapse: collapse" bordercolor ="#CCCCCC" width ="100%" ID ="Table1" >

< tr >

< td width ="100%" id =div1 > 　 </ td >

</ tr >

</ table >

</ div > //

102.是一个特殊的容器，想装个网页都行

< button >< iframe src ="http://www.google.com/" ></ iframe ></ button > //button

103.外部的html代码

event.srcElement.outerHTML//

104.标识当前的IE事件的触发器

event.srcElement和event.keyCode//

105.事件类型

event.type//

106.动态改变类型

< style >

.Overnone { border-width:0;background-color:darkblue;cursor:default;color:gold;width:115}

.Outnone {border-width:0;background-color:white;cursor:default;width:115}

</ style >

< input class =Outnone onmouseover =this.className='Overnone' > //

107.页面翻转

< html dir =rtl ></ html > //

108.滚屏

parent.scroll(x,y);//

< body onload ="s=0" onDblClick ="s=setInterval('scrollBy(0, 1)',10)" onClick ="clearInterval(s)" > //

109.改变状态栏

self.status ="";//

110.改变窗口大小

window.resizeTo(200,300);//

111.改变鼠标样式

style

BODY{CURSOR: url('mouse.ani');

SCROLLBAR-BASE-COLOR: #506AA8;

SCROLLBAR-ARROW-COLOR: #14213F;

}//

112.背景透明

< input type ="button" value ="Button" style ="background-color: transparent; border: 0;" > //

113.鼠标为等待形状

< input type =button onclick ="this.style.cursor='wait'" > //

114.调用父窗口的函数

opener.fucntion1();//

115.body的内部html代码

< input type ="button" onclick ="alert(code.document.body.innerHTML)" value ="查看" > //

116.框架中调用父窗口的函数

< INPUT TYPE ='button' onclick ='parent.test();' value ='调用parent窗口的函数' > //

117.交换节点

< table width =200 height =200 border >

< tr >< td id =c1 > CELL_1 </ td ></ tr >

< tr >< td id =c2 > CELL_2 </ td ></ tr >

</ table >

< br >

< input type ="button" value ="swap row" onclick ="c1.swapNode(c2)" > //

118.删除节点

< table width =200 height =200 border >

< tr id =trall >< td id =c1 > CELL_1 </ td ></ tr >

< tr >< td id =c2 > CELL_2 </ td ></ tr >

</ table >

< br >

< input type ="button" value ="swap row" onclick ="trall.removeNode(c2)" > //

119.添加节点

addNode()//

120.获得事件的父与子标签

event.srcElement.children[0]和event.srcElement.parentElement //

121.集中为按钮改变颜色

< style >

button{benc:expression(this.onfocus = function(){this.style.backgroundColor='#E5F0FF';})}

</ style >

< button > New </ button > //

122.判断是左键还是右键被按下

< body onmousedown =if(event.button==1)alert("左键");if(event.button==2)alert("右键") > //

123.获得操作系统的名称和浏览器的名称

document.write(navigator.userAgent)//

124.alt/ctrl/shift键按下

event.altKey //按下alt键

event.ctrlKey //按下ctrl键

event.shiftKey //按下shift键

125.将当前位置定位为C盘。

{window.location="c:"}//

126.返回输入框的类型

< script >

alert(event.srcElement.type);//

</ script >

127.模拟控件的单击事件

< INPUT TYPE ="hidden" name ="guoguo" onclick ="haha()" >

< SCRIPT LANGUAGE ="JavaScript" >

<!--

function haha()

{

alert();

}

guoguo.click();

//-->

</ SCRIPT > //

128.取出记录集的列名

java.sql.ResultSet rset = com.bsitc.util.DBAssist.getIT().executeQuery(queryStatement, conn);

java.sql.ResultSetMetaData metaData = rset.getMetaData();

int count = metaData.getColumnCount();

String name = metaData.getColumnName(i);

String value = rset.getString(i);//

129.格式化数字

function format_number(str,digit)

{

if(isNaN(str))

{

alert("您传入的值不是数字！");

return 0;

}

else if(Math.round(digit)!=digit)

{

alert("您输入的小数位数不是整数！");

return 0;

}

else

return Math.round(parseFloat(str)*Math.pow(10,digit))/Math.pow(10,digit);

}

130.回车按钮转化为tab按钮

if(event.keyCode==13) event.keyCode=9; //将

131.滚动条滚动

< button onclick ="text1.scrollTop=text1.scrollHeight" > Scroll </ button >< br >

< textarea id ="text1" cols =50 rows =10 >

</ textarea > //

132.判断是什么对象

if(typeof(unknown)=="function")return true;

if(typeof(unknown)!="object")return false;//

133.取消文本框自动完成功能

< input type ="text" autocomplete ="off" > //

134.让下拉框自动下拉

< select onmouseover ="javascript:this.size=this.length" onmouseout ="javascript:this.size=1" >

< option value ="" > 1 </ option >

< option value ="" > 2 </ option >

< option value ="" > 3 </ option >

</ select > //

135.读取XML文件

var childrenobj=myselect//document.all.myselect;

var oXMLDoc = new ActiveXObject('MSXML');

oXMLDoc.url = "mymsg.xml";

var oRoot=oXMLDoc.root;

if(oRoot.children != null)

{

for(var i=0;i < oRoot .children.item(0).children.length;++i)

{

oItem = oRoot.children.item(0).children.item(i);

oOption = new Option(oItem.text,oItem.value);

childrenobj.add(oOption);

}

//mymsg.xml文件

<?xml version ="1.0" encoding ="gb2312" ? >

< childrenlist >

< aa >

< child value ='3301' > 杭州地区 </ child >

< child value ='3303' > 温州地区 </ child >

</ aa >

< aa >

< child value ='3310' > 台州地区 </ child >

< child value ='3311' > 丽水地区 </ child >

</ aa >

</ childrenlist > //

136.点击图片，图片停止

< a href ="javascript:" >< img src ="http://www.51js.com/images/51js/red_forum.gif" border ="0" ></ a > //

137.显示本地计算机信息

var WshNetwork = new ActiveXObject("WScript.Network");

alert("Domain = " + WshNetwork.UserDomain);

alert("Computer Name = " + WshNetwork.ComputerName);

alert("User Name = " + WshNetwork.UserName);//

138.比较时间

tDate = new Date(2004,01,08,14,35); //年,月，日，时，分

dDate = new Date();

tDate < dDate ?alert("早于"):alert("晚于");//

139.弹出鼠标所在处的链结地址

<body onmouseover ="if (event.srcElement.tagName=='A')alert(event.srcElement.href)" >< a

href ="http://51js.com/viewthread.php?tid=13589" > dddd </ a >< input > //

140.注意不能通过与 undefined 做比较来测试一个变量是否存在，虽然可以检查它的类型是否为“undefined”。在以

下的代码范例中，假设程序员想测试是否已经声明变量 x ：

// 这种方法不起作用

if (x == undefined)

// 作某些操作

// 这个方法同样不起作用- 必须检查

// 字符串 "undefined"

if (typeof(x) == undefined)

// 作某些操作

// 这个方法有效

if (typeof(x) == "undefined")

// 作某些操作

141.创建具有某些属性的对象

var myObject = new Object();

myObject.name = "James";

myObject.age = "22";

myObject.phone = "555 1234";//

142.枚举（循环）对象的所有属性

for (var a in myObject)

{

// 显示 "The property 'name' is James"，等等。

window.alert("The property '" + a + "' is " + myObject[a]);

}//

143.判断一个数字是否是整数

var a=23.2;

alert(a%1==1)//

144.新建日期型变量

var a = new Date(2000, 1, 1);

alert(a.toLocaleDateString());

145.给类定义新的方法

function trim_1()

{

return this.replace(/(^\s*)|(\s*$)/g, "");

}

String.prototype.trim=trim_1;

alert('cindy'.trim());

146.定义一个将日期类型转化为字符串的方法

function guoguo_date()

{

var tmp1,tmp2;

tmp1 =this.getMonth()+1+"";

if(tmp1.length < 2 )

tmp1 ="0" +tmp1;

tmp2 =this.getDate()+"";

if(tmp2.length<2)

tmp2 ="0" +tmp2;

return this.getYear()+"-"+tmp1+"-"+tmp2;

}

Date.prototype.toLiteString =guoguo_date;

alert(new Date().toLiteString())

147. pasta 是有四个参数的构造器,定义对象。

function pasta(grain, width, shape, hasEgg)

{

// 是用什么粮食做的？

this.grain = grain;

// 多宽？（数值）

this.width = width;

// 横截面形状？（字符串）

this.shape = shape;

// 是否加蛋黄？（boolean）

this.hasEgg = hasEgg;

//定义方法

this.toString =aa;

}

function aa()

{

;

}

//定义了对象构造器后，用 new 运算符创建对象实例。

var spaghetti = new pasta("wheat", 0.2, "circle", true);

var linguine = new pasta("wheat", 0.3, "oval", true);

//补充定义属性，spaghetti和linguine都将自动获得新的属性

pasta.prototype.foodgroup = "carbohydrates" ;

148.打印出错误原因

try

{

x = y // 产生错误。

}

catch(e)

{

document.write(e.description) //打印 "'y' is undefined".

}//

149.生成EXCEL文件并保存

var ExcelSheet;

ExcelApp = new ActiveXObject("Excel.Application");

ExcelSheet = new ActiveXObject("Excel.Sheet");

//本代码启动创建对象的应用程序（在这种情况下，Microsoft Excel 工作表）。一旦对象被创建，就可以用定义的对

象变量在代码中引用它。在下面的例子中，通过对象变量 ExcelSheet 访问新对象的属性和方法和其他 Excel 对象，

包括 Application 对象和 ActiveSheet.Cells 集合。

// 使 Excel 通过 Application 对象可见。

ExcelSheet.Application.Visible = true;

// 将一些文本放置到表格的第一格中。

ExcelSheet.ActiveSheet.Cells(1,1).Value = "This is column A, row 1" ;

// 保存表格。

ExcelSheet.SaveAs("C:\\TEST.XLS");

// 用 Application 对象用 Quit 方法关闭 Excel。

ExcelSheet.Application.Quit();//

150.根据标签获得一组对象

var coll = document.all.tags("DIV");

if (coll! =null)

{

for (i =0; i<coll.length; i++)

}//

151.实现打印预览及打印

< input type =button value =打印预览 onclick ="wb.execwb(7,1)" >

< input type =button onClick =document.all.wb.ExecWB(6,1) value ="打印" > //

152.不通过form，直接通过名字引用对象

< INPUT TYPE ="text" NAME ="gg" value =aaaaa >

< SCRIPT LANGUAGE ="JavaScript" >

<!--

alert(document.all.gg.value)

//-->

</ SCRIPT > //

153.使鼠标滚轮失效

function document.onmousewheel()

{

return false;

}//

154.创建弹出窗口

< SCRIPT LANGUAGE ="JScript" >

var oPopup = window.createPopup();

var oPopupBody = oPopup.document.body;

oPopupBody.innerHTML = "Display some <B>HTML</B> here.";

oPopup.show(100, 100, 200, 50, document.body);

</ SCRIPT > //

155.取得鼠标所在处的对象

var obj = document.elementFromPoint(event.x,event.y);//

156.获得左边的对象

< INPUT TYPE ="text" NAME ="gg" >< INPUT TYPE ="text" NAME ="bb"

onclick ="this.previousSibling.value='guoguo'" > //

157.定位鼠标

document.all.hint_layer.style.left = event.x+document.body.scrollLeft+10;

document.all.hint_layer.style.top = event.y+document.body.scrollTop+10;//

158.向下拉框指定位置添加项目

var op = document.createElement("OPTION");

document.all.selected_items.children(index).insertAdjacentElement("BeforeBegin",op);

op.text = document.all.all_items[i].text;

op.value = document.all.all_items[i].value;//

159.判断一个窗口是否已经打开，如果已经打开，则关闭之

var a;

if(a)

a.close();

else

a=window.open('','','');//

160.动态创建一个标签

newElem = document.createElement("DIV");

newElem.id = "hint_layer";

document.body.appendChild(newElem);

document.all.hint_layer.innerText="guoguo";//

161.标题栏

document.title//

162.背景图片

< body style ="BACKGROUND-ATTACHMENT: fixed" background ="img/bgfix.gif" ></ body > //背景图片不动

< STYLE TYPE ="text/css" >

<!--

BODY {background-image:img/bgchild.jpg;

background-position: center;

background-repeat: no-repeat;

background-attachment: fixed;}

-->

</ STYLE > //背景图片居中

163.设置透明效果

document.form.xxx.filters.alpha.opacity=0～100//

164.定义方法

var dragapproved=false;

document.onmouseup=new Function("dragapproved = false");//

165.将数字转化为人民币大写形式

function convertCurrency(currencyDigits) {

// Constants:

var MAXIMUM_NUMBER = 99999999999.99;

// Predefine the radix characters and currency symbols for output:

var CN_ZERO = "零";

var CN_ONE = "壹";

var CN_TWO = "贰";

var CN_THREE = "叁";

var CN_FOUR = "肆";

var CN_FIVE = "伍";

var CN_SIX = "陆";

var CN_SEVEN = "柒";

var CN_EIGHT = "捌";

var CN_NINE = "玖";

var CN_TEN = "拾";

var CN_HUNDRED = "佰";

var CN_THOUSAND = "仟";

var CN_TEN_THOUSAND = "万";

var CN_HUNDRED_MILLION = "亿";

var CN_SYMBOL = "人民币";

var CN_DOLLAR = "元";

var CN_TEN_CENT = "角";

var CN_CENT = "分";

var CN_INTEGER = "整";

// Variables:

var integral; // Represent integral part of digit number.

var decimal; // Represent decimal part of digit number.

var outputCharacters; // The output result.

var parts;

var digits, radices, bigRadices, decimals;

var zeroCount;

var i, p, d;

var quotient, modulus;

// Validate input string:

currencyDigits = currencyDigits.toString();

if (currencyDigits == "") {

alert("Empty input!");

return "";

}

if (currencyDigits.match(/[^,.\d]/) != null) {

alert("Invalid characters in the input string!");

return "";

}

if ((currencyDigits).match(/^((\d{1,3}(,\d{3})*(.((\d{3},)*\d{1,3}))?)|(\d+(.\d+)?))$/) == null) {

alert("Illegal format of digit number!");

return "";

}

// Normalize the format of input digits:

currencyDigits = currencyDigits.replace(/,/g, ""); // Remove comma delimiters.

currencyDigits = currencyDigits.replace(/^0+/, ""); // Trim zeros at the beginning.

// Assert the number is not greater than the maximum number.

if (Number(currencyDigits) > MAXIMUM_NUMBER) {

alert("Too large a number to convert!");

return "";

}

// Process the coversion from currency digits to characters:

// Separate integral and decimal parts before processing coversion:

parts = currencyDigits.split(".");

if (parts.length > 1) {

integral = parts[0];

decimal = parts[1];

// Cut down redundant decimal digits that are after the second.

decimal = decimal.substr(0, 2);

}

else {

integral = parts[0];

decimal = "";

}

// Prepare the characters corresponding to the digits:

digits = new Array(CN_ZERO, CN_ONE, CN_TWO, CN_THREE, CN_FOUR, CN_FIVE, CN_SIX, CN_SEVEN, CN_EIGHT,

CN_NINE);

radices = new Array("", CN_TEN, CN_HUNDRED, CN_THOUSAND);

bigRadices = new Array("", CN_TEN_THOUSAND, CN_HUNDRED_MILLION);

decimals = new Array(CN_TEN_CENT, CN_CENT);

// Start processing:

outputCharacters = "";

// Process integral part if it is larger than 0:

if (Number(integral) > 0) {

zeroCount = 0;

for (i = 0; i < integral .length; i++) {

p = integral.length - i - 1;

d = integral.substr(i, 1);

quotient = p / 4;

modulus = p % 4;

if (d == "0") {

zeroCount++;

}

else {

if (zeroCount > 0)

{

outputCharacters += digits[0];

}

zeroCount = 0;

outputCharacters += digits[Number(d)] + radices[modulus];

}

if (modulus == 0 && zeroCount < 4 ) {

outputCharacters + = bigRadices[quotient];

}

outputCharacters + = CN_DOLLAR;

}

// Process decimal part if there is:

if (decimal ! = "" ) {

for (i = 0; i < decimal.length; i++) {

d = decimal.substr(i, 1);

if (d ! = "0" ) {

outputCharacters + = digits[Number(d)] + decimals[i];

}

// Confirm and return the final output string:

if (outputCharacters == "") {

outputCharacters = CN_ZERO + CN_DOLLAR;

}

if (decimal == "") {

outputCharacters + = CN_INTEGER;

}

outputCharacters = CN_SYMBOL + outputCharacters;

return outputCharacters;

}//

166.xml数据岛绑定表格

<html >

< body >

< xml id ="abc" src ="test.xml" ></ xml >

< table border ='1' datasrc ='#abc' >

< thead >

< td > 接收人 </ td >

< td > 发送人 </ td >

< td > 主题 </ td >

< td > 内容 </ td >

</ thead >

< tfoot >

< tr >< th > 表格的结束 </ th ></ tr >

</ tfoot >

< tr >

< td >< div datafld ="to" ></ div ></ td >

< td >< div datafld ="from" ></ div ></ td >

< td >< div datafld ="subject" ></ div ></ td >

< td >< div datafld ="content" ></ div ></ td >

</ tr >

</ table >

</ body >

</ html >

//cd_catalog.xml

<? xml version="1.0" encoding="ISO-8859-1" ?>

<!-- Edited with XML Spy v4.2

-->

< CATALOG >

< CD >

< TITLE > Empire Burlesque </ TITLE >

< ARTIST > Bob Dylan </ ARTIST >

< COUNTRY > USA </ COUNTRY >

< COMPANY > Columbia </ COMPANY >

< PRICE > 10.90 </ PRICE >

< YEAR > 1985 </ YEAR >

</ CD >

< CD >

< TITLE > Hide your heart </ TITLE >

< ARTIST > Bonnie Tyler </ ARTIST >

< COUNTRY > UK </ COUNTRY >

< COMPANY > CBS Records </ COMPANY >

< PRICE > 9.90 </ PRICE >

< YEAR > 1988 </ YEAR >

</ CD >

< CD >

< TITLE > Greatest Hits </ TITLE >

< ARTIST > Dolly Parton </ ARTIST >

< COUNTRY > USA </ COUNTRY >

< COMPANY > RCA </ COMPANY >

< PRICE > 9.90 </ PRICE >

< YEAR > 1982 </ YEAR >

</ CD >

< CD >

< TITLE > Still got the blues </ TITLE >

< ARTIST > Gary Moore </ ARTIST >

< COUNTRY > UK </ COUNTRY >

< COMPANY > Virgin records </ COMPANY >

< PRICE > 10.20 </ PRICE >

< YEAR > 1990 </ YEAR >

</ CD >

</ CATALOG >

167.以下组合可以正确显示汉字

================================

xml保存编码 xml页面指定编码

ANSI gbk/GBK、gb2312

Unicode unicode/Unicode

UTF-8 UTF-8

================================

168.XML操作

< xml id ="xmldata" src ="/data/books.xml" >

< div id ="guoguo" ></ div >

< script >

var x=xmldata.recordset //取得数据岛中的记录集

if(x.absoluteposition < x.recordcount) //如果当前的绝对位置在最后一条记录之前

{

x.movenext(); //向后移动

x.moveprevious(); //向前移动

x.absoluteposition=1; //移动到第一条记录

x.absoluteposition=x.recordcount;//移动到最后一条记录，注意记录集x.absoluteposition是从1到记录集记录的个

数的

guoguo.innerText=xmldso.recordset("field_name"); //从中取出某条记录

}

</ script >

169.动态修改CSS的另一种方式

this.runtimeStyle.cssText = "color:#990000;border:1px solid #cccccc";//

170.正则表达式

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]

应用：计算字符串的长度（一个双字节字符长度计2，ASCII字符计1）

String.prototype.len=function(){return this.replace([^\x00-\xff]/g,"aa").length;}

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*$)

应用：javascript中没有像vbscript那样的trim函数，我们就可以利用这个表达式来实现，如下：

String.prototype.trim = function()

{

return this.replace(/(^\s*)|(\s*$)/g, "");

}

////////利用正则表达式分解和转换IP地址：

下面是利用正则表达式匹配IP地址，并将IP地址转换成对应数值的Javascript程序：

function IP2V(ip)

{

re=/(\d+)\.(\d+)\.(\d+)\.(\d+)/g //匹配IP地址的正则表达式

if(re.test(ip))

{

return RegExp.$1*Math.pow(255,3))+RegExp.$2*Math.pow(255,2))+RegExp.$3*255+RegExp.$4*1

}

else

{

throw new Error("Not a valid IP address!")

}

不过上面的程序如果不用正则表达式，而直接用split函数来分解可能更简单，程序如下：

var ip="10.100.20.168"

ip=ip.split(".")

alert("IP值是："+(ip[0]*255*255*255+ip[1]*255*255+ip[2]*255+ip[3]*1))

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- ./?%&=]*)?

//////////利用正则表达式去除字串中重复的字符的算法程序：

var s="abacabefgeeii"

var s1=s.replace(/(.).*\1/g,"$1")

var re=new RegExp("["+s1+"]","g")

var s2=s.replace(re,"")

alert(s1+s2) //结果为：abcefgi

思路是使用后向引用取出包括重复的字符，再以重复的字符建立第二个表达式，取到不重复的字符，两者串连。这个方

法对于字符顺序有要求的字符串可能不适用。

//////////得用正则表达式从URL地址中提取文件名的javascript程序，如下结果为page1

s="http://www.9499.net/page1.htm"

s=s.replace(/(.*\/){0,}([^\.]+).*/ig,"$2")

alert(s)

/////////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,'')

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,'')

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,''))"

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,''))"

171.设置和使用cookie

< HTML >

< BODY >

设置与读取 cookies

< BR >

写入cookie的值 < input type =text name =gg >

< INPUT TYPE = BUTTON Value = "设置cookie" onClick = "Set()" >

< INPUT TYPE = BUTTON Value = "读取cookie" onClick = "Get()" >< BR >

< INPUT TYPE = TEXT NAME = Textbox >

</ BODY >

< SCRIPT LANGUAGE ="JavaScript" >

function Set()

{

var Then = new Date()

Then.setTime(Then.getTime() + 60*1000 ) //60秒

document.cookie = "Cookie1="+gg.value+";expires="+ Then.toGMTString()

}

function Get()

{

var cookieString = new String(document.cookie)

var cookieHeader = "Cookie1="

var beginPosition = cookieString.indexOf(cookieHeader)

if (beginPosition != -1)

{

document.all.Textbox.value = cookieString.substring(beginPosition + cookieHeader.length)

}

else

document.all.Textbox.value = "Cookie 未找到!"

}

</ SCRIPT >

</ HTML > //

172.取月的最后一天

function getLastDay(year,month)

{

//取年

var new_year = year;

//取到下一个月的第一天,注意这里传入的month是从1～12

var new_month = month++;

//如果当前是12月，则转至下一年

if(month>12)

{

new_month -=12;

new_year++;

}

var new_date = new Date(new_year,new_month,1);

return (new Date(new_date.getTime()-1000*60*60*24)).getDate();

}//

173.判断当前的焦点是组中的哪一个

for(var i=0;i < 3 ;i++)

if(event.srcElement ==bb[i])

break;//

174.实现类

package com.baosight.view.utils;

import javax.servlet.jsp.tagext.TagSupport;

import javax.servlet.http.HttpSession;

public class Mytag extends TagSupport

{

public int doStartTag() throws javax.servlet.jsp.JspException

{

boolean canAccess = false;

HttpSession session = pageContext.getSession();

if (canAccess)

{

return EVAL_BODY_INCLUDE;

}

else

{

return this.SKIP_BODY;

}

175.在web.xml中添加定义

< taglib-uri > guoguo </ taglib-uri >

< taglib-location > /WEB-INF/abc.tld </ taglib-location >

</ taglib >

176.标签库中定义abc.tld

<? xml version="1.0" encoding="UTF-8" ?>

<! DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.1//EN"

"http://java.sun.com/j2ee/dtds/web-jsptaglibrary_1_1.dtd" >

< taglib >

< tlibversion > 1.0 </ tlibversion >

< jspversion > 1.1 </ jspversion >

< shortname > hr </ shortname >

< uri > guoguo </ uri >

< info > Extra 3 Tag Library </ info >

< tag >

< name > mytag </ name >

< tagclass > com.baosight.view.utils.Mytag </ tagclass >

< attribute >

< name > id2 </ name >

< required > true </ required >

< rtexprvalue > true </ rtexprvalue >

</ at