javascript ÉèÖÃcookie×¢ÒâÊÂÏî
javascript ÉèÖÃcookie×¢ÒâÊÂÏî
javascript ÉèÖÃcookie×¢ÒâÊÂÏî
ÔÚJavascript ÖУ¬cookie ¿ÉÒÔͨ¹ý document.cookie½øÐÐÉèÖ㬵±ÉèÖöà¸öcookieʱä¯ÀÀÆ÷»á×Ô¶¯°Ñ
ËüÃÇÓ÷ֺŸô¿ª¡£ÈçÏ£º
document.cookie = 'cookie1';
document.cookie ='cookie2';
alert (document.cookie) ;//Êä³ö cookie1 ; cookie2
µ«ÊÇÈç¹û°ÑµÚ¶þ¾ä¸ÄΪ document.cookie +='cookie2';
ÄÇôÔÚIEÖУ¬Êä³öÒÀȻΪcookie1 ; cookie2,µ«ÔÚFFÖУ¬Êä³ö±äΪcookie1 cookie2 £¨¼´·ÖºÅ»á±»È¥µô£©
Ïà¹ØÎĵµ£º
±¾ÆªÈÕÖ¾ÏÈÖ÷ÒªÌÖÂÛ RegExp ¶ÔÏóµÄ²¿·Ö·½·¨£¬RegExp ¶ÔÏó¶¨ÒåÁËÁ½¸öÓÃÓÚģʽƥÅäµÄ·½·¨£¬ËüÃÇÊÇexec()
ºÍtest()
ÏÂÃæÎÒÃÇÖðÒ»½øÐн²½â
¡£ºÇ£¬ºÍÉÏƪÈÕÖ¾Ò»ÑùµÄ½éÉÜ£¬¿´À´Ì×»°£¬¹ûÈ»ÊÊÓÃÓÚ¶à¸ö³¡ºÏ¡£àÅ¡£
exec() ¼ìË÷×Ö·û´®ÖеÄÖ¸¶¨Öµ£¬·µ»ØÖµÊDZ»ÕÒµ½µÄÖµ£¬Èç¹ûûÓз¢ÏÖÆ¥Å䣬Ôò·µ»Ø null£º
Ö÷ÒªµÄRegExpģʽƥÅä·½·¨Ê ......
JavaScriptÕýÔò±í´ïʽµÄÓ÷¨
ÕýÔò±í´ïʽÊÇÒ»ÖÖ¿ÉÒÔÓÃÓÚģʽƥÅäºÍÌæ»»µÄÇ¿´ó¹¤¾ß£¬ÔںܶàÓïÑÔÖж¼¿ÉÒÔÓ¦Óá£JavaScript¶ÔÕýÔò±í´ïʽÌṩÁ˺ܺõÄÖ§³Ö£¬
JavascriptÖÐÓÐÒ»¸öÕýÔò±í´ïʽ¶ÔÏóRegExp¡£¸Ã¶ÔÏóÌṩÁË´óÁ¿µÄÊôÐԺͷ½·¨À´´¦ÀíÕýÔò±í´ïʽ£¬Í¬Ê±£¬String¶ÔÏóÒ²ÌṩÁËÏà¹ØµÄ·½·¨À´
´¦ÀíÕýÔò±í´ïʽ£¬ÔÚWebÓ¦ÓÃÖУ¬¾³ ......
Javascript ÕýÔò±í´ïʽʹÓÃÊÖ²á
Javascript 2008-10-30 10:15 ÔĶÁ97 ÆÀÂÛ0
×ֺţº ´ó´ó ÖÐÖРСС
Ò»£®ÕýÔò±í´ïʽƥÅä³£ÓÃÓï·¨
“+”×Ö·û£º¹æ¶¨±í´ïʽ×Ö·û³öÏÖÒ»´Î»ò¶à´Î¡£
“*”×Ö·û£º¹æ¶¨±í´ïʽ×Ö·û³öÏÖÁã´Î»ò¶à´Î¡£
“? ......
½Å±¾ÖеÄʼþÓÐ2ÖÖÄ£ÐÍ
1¡¢ ðÅÝÐÍʼþ£ºÊ¼þÊÇ°´ÕÕ´Ó×îÌض¨µÄÄ¿±êµ½×î²»Ìض¨µÄʼþÄ¿±ê(document)µÄ˳ÐòÒÀ´Î´¥·¢¡£ÕâÊÇÕë¶Ô²»Í¬ÔªËصÄͬһʼþÀàÐÍ
È磺
<html onclick=”handleClick()”>
<head></head>
<body onclick=”handleClick()”>
<div ......