JavaScript ÅжÏÉÏ´«ÎļþÀàÐÍ
function
Check_FileType(str)
{
var
pos
=
str.lastIndexOf(
"
.
"
);
var
lastname
=
str.substring(pos,str.length) //´Ë´¦Îļþºó׺ÃûÒ²¿ÉÓÃÊý×鷽ʽ»ñµÃstr.split(".")
if
(lastname.toLowerCase()
!=
"
.jpg
"
&&
lastname.toLowerCase()
!=
"
.gif
"
)
{
alert(
"
ÄúÉÏ´«µÄÎļþÀàÐÍΪ
"
+
lastname
+
"
£¬Í¼Æ¬±ØÐëΪ.jpg,.gifÀàÐÍ
"
);
document.myform.pic.focus();
return
false
;
}
else
{
return
true
;
}
}
http://www.cnblogs.com/SList/archive/2005/11/09/272164.html
Ïà¹ØÎĵµ£º
Íê³ÉÒÔϲ¿·Ö£º
1. Ê÷¿ÉÒÔ½ÓÊÜsingleXml¸ñʽºÍjsonÒÔ¼°jsonarray¸ñʽµÄÊý¾Ý£»
2. ¸´Ñ¡¿ò¹´Ñ¡ºÍÕÛµþ×Ó½ÚµãµÄÂß¼ÓÃdivǶÌ×À´ÊµÏÖ,ЧÂʸü¸ß;²¢ÌṩÁË¿ìËÙ»Ê÷µÄ·½·¨;(´æÔÚbug:¿ìËÙ»Ê÷ЧÂʲ¢²»¸ß,divǶÌ×ÓÐÎÊÌâ);
3.Ôö¼ÓÊ÷µÄÉî¶È this.depth ......
ÊÂʵÉÏIEÒѾΪÎÒÃÇÄÚǶÁËWebBrowser¿Ø¼þ£¬ÒѾÄܹ»ºÜºÃµÄÖ§³ÖÎÒÃdz£ÓõĴòÓ¡¹¦ÄÜÁË¡£Í¨¹ý¸Ã¿Ø¼þµÄ¹¦Äܵ÷Óã¬Óû§¿ÉÒÔ½«µ±Ç°µÄHtmlÒ³ÃæÊä³öµ½´òÓ¡»úÉÏ£¬Óû§Ö»ÐèÒª½«Òª´òÓ¡µÄÊý¾Ý×éÖ¯³ÉHtmlÒ³Ãæ£¬È»ºóµ÷ÓÃWebBrowserµÄ´òÓ¡¹¦ÄܾͿÉÒԺܺõÄʵÏÖËù¼û¼´ËùµÃµÄ´òÓ¡¹¦ÄÜ¡£²»¹ýÕâÖÖ´òÓ¡´æÔÚµÄȱµã¾ÍÊÇ´òÓ¡¾«¶È²»¹»£¬Èç¹ûÐèÒª¾«È· ......
JavaScript¾ÍÕâô»ØÊ (JS»ù´¡ÖªÊ¶ÕûÀí)
1 ´´½¨½Å±¾¿é
1: <script language=”JavaScript”>
2: JavaScript code goes
here
3: </script>
2 Òþ²Ø½Å±¾´úÂë
1: <script language=”JavaScript”>
2: <!&ndas ......
¼¼ÊõµÄjsµÄreplaceĬÈÏÖ»Ìæ»»µÚÒ»¸ö£¬Õâ²»ÖªµÀÄĸöÉè¼ÆµÄ£¬Èç¹ûÎÒÊÇ A / B / C / D µÄ×Ö·û´®Òª±ä³É A-B-C-D ¾ÍÒªÔÚ±»×ªÄÚÈÝʹÓúó¼Ó/g£¬ÒòΪÓÖ´øÁË/£¬¼ÓÉϸ÷¿Õ¸ñ£¬ÔÚreplace µÄµÚÒ»¸ö²ÎÊýÓ¦¸ÃÊÇ
var rut = /\/ /g;
È»ºó
replace(rut, "-"); ......
×î½üÔÚÍøÉϲéÔÄÁ˲»ÉÙJavascript±Õ°ü(closure)Ïà¹ØµÄ×ÊÁÏ£¬Ð´µÄ´ó¶àÊǷdz£µÄѧÊõºÍרҵ¡£¶ÔÓÚ³õѧÕßÀ´Ëµ±ð˵Àí½â±Õ°üÁË£¬¾ÍÁ¬ÎÄ×ÖÐðÊö¶¼ºÜÄÑ¿´¶®¡£×«Ð´´ËÎĵÄÄ¿µÄ¾ÍÊÇÓÃ×îͨË×µÄÎÄ×Ö½Ò¿ªJavascript±Õ°üµÄÕæÊµÃæÄ¿¡£
Ò»¡¢Ê²Ã´ÊDZհü£¿
“¹Ù·½”µÄ½âÊÍÊÇ£ºËùν“±Õ°ü”£¬Ö¸µÄÊÇÒ»¸öÓµÓÐÐí¶à±äÁ¿ºÍ°ó¶¨Á ......