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

JavaScript¶ÔÏóµÄ·Ï³ý


ECMAScriptÓÐÎÞÓô洢µ¥ÔªÊÕ¼¯³ÌÐò£¬µ±ÔÚÔÙûÓжԶÔÏóµÄÒýÓÃʱ£¬³Æ¸Ã¶ÔÏ󱻷ϳý£¨dereference£©ÁË¡£
ÔËÐÐÎÞÓô洢µ¥ÔªÊÕ¼¯³ÌÐòʱ£¬ËùÓзϳýµÄ¶ÔÏó¶¼±»Ïú»Ù¡£
°Ñ¶ÔÏóµÄËùÓÐÒýÓö¼ÉèÖÃΪnull£¬¿ÉÒÔÇ¿ÖÆÐԵķϳý¶ÔÏó£¬ÀýÈ磺
    var oObject = new Object;
    .......
    oObject = null;
µ±Ò»¸ö¶ÔÏóÓжà¸öÒýÓÃʱ£¬Òª½«ËùÓеÄÒýÓö¼ÉèÖÃΪnull£¬²ÅÄܳ¹µ×·Ï³ý¶ÔÏó¡£


Ïà¹ØÎĵµ£º

JavaScript WebÁ÷³Ì¶¨Ò幤¾ß

Submitted by gouki on 2008, December 4, 11:47 PM. Javascript
ÓÃjavascript+vmlÀ´×ö¹¤×÷Á÷£¬È·ÊµÊǵÚÒ»´Î¿´µ½£¬ËùÒÔÎÒÔÚ¿´µ½ÓÐÕâ¸öÐÂÎŵÄʱºò£¬¾Í¾õµÃÌØ±ðµÄ³Ô¾ª¡£µ±ÄêµÄTRS¾ÍÊÇÒòΪÓÐÒ»¸öactivex°æµÄ¹¤×÷Á÷¿Ø¼þµÄCMS£¬µ¼ÖÂËûµÄ¼Û¸ñ·Ç³£µÄ¸ß£¬½ñÌìÄܹ»¿´µ½ÓÐjavascript°æµÄ£¬¾ªÑÈÊÇÄÑÃâµÄ¡£¡£¡£
Ö»ÊDz¢·ÇËùÓеĻúÆ÷¶¼Ö ......

javascript evalµÄ¼òµ¥Ó÷¨

js eval
evalº¯Êý½ÓÊÕÒ»¸ö²ÎÊýs£¬Èç¹ûs²»ÊÇ×Ö·û´®£¬ÔòÖ±½Ó·µ»Øs¡£·ñÔòÖ´ÐÐsÓï¾ä¡£Èç¹ûsÓï¾äÖ´Ðнá¹ûÊÇÒ»¸öÖµ£¬Ôò·µ»Ø´ËÖµ£¬·ñÔò·µ»Øundefined¡£
Àý×Ó
Ö±½ÓÔËËã
alert(eval('1+2')); // ->3
¸³Öµ
eval('var aa = 5');
alert(aa); // ->5
ÀàÐÍת»»
var yy = "{a:'aa',b:'bb'}";
yy = eval('(' + yy + ')'); ......

javascript Ò³ÃæÌø×ªÓï¾ä

javascriptÒ³ÃæÌø×ª³£ÓôúÂë
 
¡¡   °´Å¥Ê½£º
¡¡¡¡<INPUT name="pclog" type="button" value="GO" onClick="location.href='http://www.163.com'">
       »òÕß
      <input type="button" value="ÖØÐ¹ºÂò" onclick="return goBack ......

ASP.NETÓëJavaScript½»»¥

1.asp.netºô½Ðjs
view
plain
copy
to clipboard
print
?
Response.Write("<mce:script language=javascript><!--  
");  
Response.Write("alert('»¶Ó­Äú ');"
 );  
Response.Write("location.href='login.aspx';"
)& ......

String.prototypeʵÏÖµÄһЩjavascriptº¯Êý


//String.prototypeʹÓà   
  
//ÅúÁ¿Ìæ»»£¬±ÈÈ磺str.ReplaceAll([/a/g,/b/g,/c/g],["aaa","bbb","ccc"])   
String.prototype.ReplaceAll=function (A,B) {   
    var C=this;   
    for(var i ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ