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

JavaScriptѧϰ±Ê¼Ç ——×î¼Ñʵ¼ù

      ×î¼Ñʵ¼ùÊÇÈËÃÇ×öÊÂʱӦ¸Ã×ñÑ­µÄ¡¢±»¹«ÈÏΪºÍ¾­¹ýÑéÖ¤µÄµÄģʽ¡£ËäÈ»²»Î¨Ò»£¬ÉõÖÁ²»ÊÇ×î¼ÑµÄ·½Ê½£¬µ«ÊÇÊÇÈËÃÇÈÏͬµÄ×öʵÄģʽ¡£
      1.1 ²»ÌÆÍ»ºÍ½¥½øÔöÇ¿
             Óйز»ÌÆÍ»µÄÁ½¸öÊõÓï——“½¥½øÔöÇ¿£¨progressive enhancement£©”ºÍ“ƽÎÈÍË»¯(graceful degradation)”.ͨ¹ýһЩ¼¼ÊõµÄʵÏÖ£¬±ÈÈçÔËÓÃjavascipt£¬Èç¹ûä¯ÀÀÆ÷Ö§³Ö£¬Ôò¿ÉÒԵõ½Ä³Ð©ÔöÇ¿µÄЧ¹û£¨½¥½øÔöÇ¿£©£¬Èç¹ûä¯ÀÀÆ÷²»Ö§³Ö£¬Îĵµ±»ÍË»¯£¨Æ½ÎÈÍË»¯£©¡£Í¨¹ýÕâÖÖ¼¼Êõ£¬Ö§³Ö²»Í¬¹¦ÄܵÄä¯ÀÀÆ÷»á»ñµÃͬһÎĵµµÄÏàͬµÄÐÅÏ¢Á¿È´²»Í¬µÄÊÓͼ¡£
            ͨ¹ýʹÓÃjavasript²»Ó¦¸Ã·Á°­“ÄÚÈݵÄÓÐЧÐԺͿɷÃÎÊÐÔ”¡£Òò´ËÓбØÒªÌṩһ¸ö½ÏÉÙÒÀÀµÓÚjavascriptµÄƽÎȵÄÍË»¯·½°¸¡£
     1.2  ÈÃjavascriptÔËÐÐÆðÀ´
           ²»³É¹¦µÄÍøÕ¾´æÔÚµÄȱÏÝ£º
           1¡£<script>±êÇ©³öÏÖÔÚ<body>±êÇ©ÖС£
           2¡£ÒÀÀµÓÚä¯ÀÀÆ÷µÄ°æ±¾¼ì²â¶ø²»ÊÇÄÜÁ¦¼ì²âÀ´²âÊÔjavasciptµÄ¼æÈÝÐÔ¡££¨Õâ¸öȱÏÝ±È½ÏÆÕ±é£©
           3¡£ÔÚÃªÔªËØµÄhrefÊôÐÔÖÐʹÓÃÁËÓ²±àÂëµÄjavascriptµÄǰ׺¡£
           4¡£¶àÓàµÄ¡¢Öظ´µÄ¡¢¸ß¶È¶¨ÖƵÄjavascript´úÂë¡£
     1.2.1 ½«ÐÐΪºÍ½á¹¹·ÖÀë
           1.ÕýÈ·µØ°üº¬javascriptµÄ´úÂ룬Ӧ¸Ã½«<script>±êÇ©·Åµ½<head>±êÇ©ÖС£ÕâÖÖ·½·¨ÈÔÈ»½á¹¹ºÍÐÐΪ»ìµ½Ò»Æð£¬²»¹ý³Ì¶ÈÒªÇáһЩ¡£
           2. ʹÓÃ<script type="text/javascript" src="source.js"></scirpt>µÄ·½Ê½£¬Í¨¹ýÒýÈëÍⲿÎļþÀ´°üº¬javascript½Å±¾¡£ÕâÖÖ·½Ê½µÄºÃ´¦ÊDZãÓÚ´úÂëÖØÓã¬Ò³ÃæµÄά»¤£¬Í¬Ê±¼õÉÙÁËÒ³ÃæµÄ´óС¡£¿Í»§¶Ëä¯ÀÀʱ»á±»Webä¯ÀÀÆ÷»º´æÆðÀ´£¬¶øÇÒÖ»ÏÂÔØÒ»´Î£¬´Ó¶ø¼õÉÙºóÃæÒ³


Ïà¹ØÎĵµ£º

JavaScriptÕýÔò±í´ïʽµÄÓ÷¨

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 ......

ÔÚPBÖÐʹÓÃJavaScript½Å±¾º¯Êý

ÔÚPBÖÐʹÓÃJavaScript½Å±¾º¯Êý
ÔÚPBÖÐʹÓÃJavaScript½Å±¾º¯Êý
ÏÖÔÚÐí¶àµÄÐÅϢϵͳ¶¼ÊÇ»ùÓÚB/S°æ±¾£¬µ«PBдµÄÐÅϢϵͳÉú´æ¿Õ¼äÒ²±È½Ï´ó£¬ÍùÍùÊÇÒ»¸öÐÅϢϵͳ¼´ÓÐPB°æ±¾Ò²ÓÐB/S°æ±¾¡£ÐÅϢϵͳ»áÓÐÐí¶àµÄÒµÎñ¹æÔò£¬B/SÖÐÒµÎñ¹æÔòµÄ¼ì²éÔÚJavaScript½Å±¾ÖÐʵÏÖ£¬Èç¹ûÔÚPBÖÐÓÖʵÏÖÒ»´Î£¬·Ñʱ·ÑÁ¦²»Ëµ£¬
ÒµÎñ¹æÔò¸Ä±äÓÖÒªÖØÐ± ......

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 ......

JavascriptÖÐ×î³£ÓõÄ55¸ö¾­µä¼¼ÇÉ

1. oncontextm ½«³¹µ×ÆÁ±ÎÊó±êÓÒ¼ü
<table border oncontextmenu=return(false)><td>no</table> ¿ÉÓÃÓÚTable
2. <body onselectst> È¡Ïûѡȡ¡¢·ÀÖ¹¸´ÖÆ
3.  ²»×¼Õ³Ìù
4.   ·ÀÖ¹¸´ÖÆ
5. <link  > IEµØÖ·À¸Ç°»»³É×Ô¼ºµÄͼ±ê
6. <link   ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ