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

javascript withÓ÷¨(ת)

with
(object)
   statements
²ÎÊý
object
еÄĬÈ϶ÔÏó¡£
statements
Ò»¸ö»ò¶à¸öÓï¾ä£¬object ÊǸÃÓï¾äµÄĬÈ϶ÔÏó¡£
˵Ã÷
with
Óï¾äͨ³£ÓÃÀ´Ëõ¶ÌÌØ¶¨ÇéÐÎϱØÐëдµÄ´úÂëÁ¿¡£ÔÚÏÂÃæµÄÀý×ÓÖУ¬Çë×¢Òâ Math µÄÖØ¸´Ê¹Óãº
x = Math.cos(3 * Math.PI) + Math.sin(Math.LN10)
y = Math.tan(14 * Math.E)
µ±Ê¹Óà with
Óï¾äʱ£¬´úÂë±äµÃ¸ü¶ÌÇÒ¸üÒ×¶Á£º
with
(Math){
   x = cos(3 * PI) + sin (LN10) 
   y = tan(14 * E)
}


Ïà¹ØÎĵµ£º

Javascript: onresize

ä¯ÀÀÆ÷£ºIE 8¡¢FF 3.6¡¢Chrome 4.0¡¢Safari 4.0¡¢Opera 10.1
½öÓÐIEä¯ÀÀÆ÷Ö§³ÖHTMLElement.onresize£¨±ÈÈçbody.onresize£©
ÆäËüä¯ÀÀÆ÷Ö»Ö§³Öwindow.onresize
ÏÈ˵IEµÄHTMLElement.onresize
ʹÓÃǰÇëÈ·¶¨ÄãµÄÐÄÔ༰ѪѹÕý³££¬Èç¹ûÄ㶨ÒåÁË
body.onresize = function(){……}»òÕßhtml.onresize = obj.fun;
......

javascript²¶»ñ´°¿Ú¹Ø±Õʼþ


javascript²¶»ñ´°¿Ú¹Ø±ÕʼþÓÐÁ½ÖÖ·½·¨
1.ÓÃjavascriptÖØÐ¶¨Òå window.onbeforeunload()  ʼþ
ÔÚjavascriptÀﶨÒåÒ»¸öº¯Êý¼´¿É
function  window.onbeforeunload()  {  alert("¹Ø±Õ´°¿Ú")}
alert()ʼþ½«»áÔڹرմ°¿ÚǰִÐУ¬ÄãÒ²¿ÉÒÔÓû§¾ö¶¨ÊÇ·ñ¹Ø±Õ´°¿Ú
function  window.o ......

Javascript ÄäÃûº¯Êý¼°Æä´úÂëģʽԭÀí

֮ǰ¿´ÁËÓйØÄäÃûº¯ÊýµÄµ÷Ó㬸оõÓбØÒªºÍ´ó¼Ò·ÖÏíһϡ£
¹ØÓÚʲôÊÇÄäÃûº¯Êý£¬¼°Ëü´øÀ´µÄÓÅÊÆÔÚ±¾ÎľͲ»ÉÁË£¬ÏÈÅ׳öÒ»¸ö³£ÓõÄÄäÃûº¯Êý£º
(function(){alert('yo')})()
ºÜ¶àͬѧ֪µÀÔõôÓÃÕâÖÖÄäÃûº¯Êý£¬È´»òÐí²¢²»Ã÷°×ΪʲôÕâÑùд¾ÍÄܹ»µ÷ÓÃÄäÃûº¯Êý¡£Ò²ÐíÖªµÀºóÃæµÄÔ²À¨ºÅÊÇÖ´ÐÐÇ°ÃæµÄº¯Êý£¬¶ø²¢²»Çå³þÇ°ÃæµÄÔ² ......

javascript ʵÏÖTab»¬¶¯

Ïȸø³ö»ù±¾µÄHTMLÎļþ£º
<ul>
  <li id="m01"></li>
  <li id="m01"></li>
  <li id="m01"></li>
</ul>
<div>
 <div id="C01"> </div>
 <div id="C02">&n ......

ÓÃJavascriptÁ¬½ÓAccessÊý¾Ý¿âµÄ·½·¨

±¾ÎĽéÉÜjavascriptÁ¬½ÓaccessÊý¾Ý¿âµÄ·½·¨¡£Õâ¶Î´úÂëÔÚ±¾µØ¿ÉÒÔÕý³£ÔËÐУ¬ÔÚÏßÔòÐèÒª×ã¹»µÄȨÏÞ¡£ÓÉÓÚ²ÉÓÃAccessÊý¾Ý¿â£¬ËùÒÔ²¢²»Ê¹Óñê×¼µÄSQLÓ﷨ʹÓÃʱ¡£ÐèҪעÒâ¡£
Õ⼸Ìì·ÑÁËͦ´óÁ¦ÆøÔÚÍøÉϲéÕÒjavascriptÁ¬½ÓaccessÊý¾Ý¿âµÄ·½·¨£¬¾­¹ýÕûÀí×ܽᣬÖÕÓÚд³öÒ»¶ÎÄܹ»ÓÐЧִÐеĴúÂë¡£
µ«ÊÇÕâ¶Î´úÂëÔÚ±¾µØ¿ÉÒÔÕý³£ÔËÐУ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ