Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

javascriptдÔÚº¯ÊýÀïÃæ

javascriptдÔÚº¯ÊýÀïÃæ
function loadscript(url) {
document.write('<scr' + 'ipt  type="text/javascript" src"' + url + '"><\/scr' + 'ipt>'>)
}
Ôڳɹ¦µÄÕýÔò±í´ïʽ²éÕÒÍê³É֮ǰ£¬ÆäÊôÐÔֵΪ undefined¡£
²»Òª½«È«¾Ö RegExp ¶ÔÏóÓë ÕýÔò±í´ïʽ
¶ÔÏó»ìÏý¡£¾¡¹ÜÌýÆðÀ´ÏñÊÇÒ»»ØÊ£¬µ«ËüÃÇÊǽØÈ»²»Í¬µÄ¡£È«¾Ö RegExp
¶ÔÏóµÄÊôÐÔ°üº¬²»¶Ï¸üÐµĹØÓÚÿ¸öÆ¥Åä³öÏÖµÄÐÅÏ¢£¬¶øÕýÔò±í´ïʽ¶ÔÏóÖ»°üº¬³öÏÖÕýÔò±í´ïʽƥÅäµÄÐÅÏ¢¡£
ÏÂÃæµÄÀý×ÓÑÝʾÁËÈ«¾Ö
JavaScriptÖÐRegExp¶ÔÏóµÄÓ÷¨¡£
function
matchDemo(){
   var s;
   var re = new RegExp("d(b+)(d)","ig");
 
 var str = "cdbBdbsbdbdz";
   var arr = re.exec(str);
   s = "$1
contains: " + RegExp.$1 + "\n";
   s += "$2 contains: " + RegExp.$2 +
"\n";
   s += "$3 contains: " + RegExp.$3;
   return(s);
}


Ïà¹ØÎĵµ£º

[·­Òë]High Performance JavaScript(033)

Summary  ×ܽá
    When web pages or applications begin to feel slow, analyzing assets as they come over the wire and profiling scripts while they are running allows you to focus your optimization efforts where they are needed most.
    µ±ÍøÒ³»òÓ¦ÓóÌÐò±äÂýʱ£¬·ÖÎ ......

JavascriptÎļþ¼°Îļþ¼Ð²Ù×÷

JavascriptÎļþ¼°Îļþ¼Ð²Ù×÷
 
Ò»¡¢¹¦ÄÜʵÏÖºËÐÄ£ºFileSystemObject ¶ÔÏó
    ÒªÔÚjavascriptÖÐʵÏÖÎļþ²Ù×÷¹¦ÄÜ£¬Ö÷Òª¾ÍÊÇÒÀ¿¿FileSystemobject¶ÔÏó¡£
¶þ¡¢FileSystemObject±à³Ì
ʹÓÃFileSystemObject ¶ÔÏó½øÐбà³ÌºÜ¼òµ¥£¬Ò»°ãÒª¾­¹ýÈçϵIJ½Ö裺 ´´½¨FileSystemObject¶ÔÏó¡¢Ó¦ÓÃÏà¹Ø·½·¨¡¢· ......

Javascript ʹÓÃIDE¹¤¾ß½øÐе÷ÊÔ

1. Javascript Debug Toolkit½éÉÜ
JSDT(Javascript Debug Toolkit)ÊÇÒ»¸öÓÃÓÚjavascriptµ÷ÊÔµÄeclipse
²å¼þ£¬ÓÃÓÚµ÷ÊÔjavascript¡£JSDT¿ÉÒÔ¿çä¯ÀÀÆ÷µ÷ÊÔ£¬Ö§³ÖÔÚIE,Firefox,Safari,ChromeµÈÖ÷Á÷ä¯ÀÀÆ÷Öе÷ÊÔ
javascript¡£JSDTÖ§³ÖÉèÖöϵ㣬µ¥²½µ÷ÊԵȵ÷ÊÔ¹¤¾ßµÄ»ù±¾ÌØÐÔ¡£
2. ÈçºÎ°²×°
JSDTÊÇ»ùÓÚeclipse3.2+,jdk1.5+ ......

JavaScript¾­µäÓï¾ä¼°Æä»ù±¾Ó¦ÓÃ

¡ö´ò¿ª¡ö
<input name=Button onClick=document.all.WebBrowser.ExecWB(1,1) type=button value=´ò¿ª>
<OBJECT classid=CLSID:8856F961-340A-11D0-A96B-00C04FD705A2 height=0 id=WebBrowser width=0></OBJECT>
¡öÁí´æÎª¡ö
<input name=Button onClick=document.all.WebBrowser.ExecWB(4,1) typ ......

ÖÊÊý Javascript ֮ǰµÄÄǸöÓеãС벡

<mce:script type="text/javascript"><!--
document.write("<table border=1px border-color=red>"); //±í¸ñ¿ªÊ¼
for (h = 1; h <= 10; h++) {
document.write("<tr>"); //¿ªÊ¼µÚÒ»ÐÐ
for (s = 1; s <= 10; s++) {
var num = (h-1)*10+s; ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ