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

jsp²éѯij¸öÊýСÊýµãºóÃæÓм¸Î»

ÀýÈ磺String a="566",b="52.3",c="56.23"

ÒªµÃµ½ a¶ÔÓ¦µÄÊÇ 0  b¶ÔÓ¦µÄÊÇ1  c¶ÔÓ¦µÄÊÇ2

Ö±½ÓÅжÏСÊýµãλÊý°¡

a.split(".")£¬È»ºóÅжÏÀïÃæÊÇ·ñÓÐСÊý£¬ÔÚµÚ¼¸Î»¡£




1.´æÔÚ×Ö·û´®£º
×Ö·û´®³¤¶È - ×Ö·û´®Ñ°ÕÒµÄindex
2.²»´æÔÚ
return 0

ÒýÓÃ
Ö±½ÓÅжÏСÊýµãλÊý°¡

a.split(".")£¬È»ºóÅжÏÀïÃæÊÇ·ñÓÐСÊý£¬ÔÚµÚ¼¸Î»¡£




Õâ¸öÓ¦¸Ã¿ÉÐУº
Java code:

String[] array = a.split(".");
array == null; //±íʾûÓе㣬ÊÇÕûÊý£¬¿ÉÒÔ·µ»Ø0.
array != null;
String result = array[1].subsubstring(0,1);//ÕâÓ¦¸ÃÊÇÄãÏëµÃµ½µÄ





Java code:

System.out.println(a.length()-(a.indexOf(".")==-1?a.length():a.indexOf(".")+1));
System.out.println(a.split("\\.").length>1?a.split("\\.")[1].length():0);




Ïà¹ØÎÊ´ð£º

jspÌø×ª

ÎÒµãºóÍËʱÊǿհ×Ò³Ãæ
ÐèˢвÅÄÜÏÔʾ
Õâ¸öÔõô´¦Àí°¡
Çë´ó¼Ò°ï°ïæ
°ÑÎÊÌâ˵µÄÏêϸһЩ£¬ÕâÑùÓÐÖúÓÚÎÊÌâµÄ»Ø¸´£¬¼°´ð°¸µÄ׼ȷÐÔ£¡

ÎÒ¾õµÃÊÇÄãµÄä¯ÀÀÆ÷Æ÷µÄÎÊÌâ°É£¬ÎÒÒÔǰÓöµ½¹ýÕâÑùµÄÎÊÌ⣬°ÑIEµÄËùÓÐÊôÐÔÖ ......

¹ØÓÚÔÚJSPÖÐÉÏ´«Í¼Æ¬µÄÏà¹ØÎÊÌâ - Web ¿ª·¢ / ÆäËû

//Óÿͻ§µÄsessionµÄid½¨Á¢Ò»¸öÁÙʱÎļþ£º
//String tempFileName=(String)session.getId();
String tempFileName = (String)session.getId();
//out.println(& ......

jsp ¼òµ¥µÄsessionÎÊÌâ¡£

±¾ÈË×öÁËÒ»¸öÄ£Ä⹺ÎïÍøÕ¾£¬Óöµ½Ò»Ð©ÎÊÌâ¡£
µÚÒ»¸öÓû§Ñ¡ÔñÁËA¡¢B¡¢CÉÌÆ·
È»ºóµÚ¶þ¸öÓû§Ö»Ñ¡ÔñDÉÌÆ·¡£
µã»÷²é¿´µÄʱºò£¬¹ºÎï³µÁгöA¡¢B¡¢C¡¢DËÄÖÖÉÌÆ·£¬ÇëÎÊÄÄÀï³öÁËÎÊÌ⣿
Java code:

<%@ page content ......

Çë½Ì jspÉèÖÃÎÊÌâ

ÎÒÏÂÔØÁËjavaµ«ÕÒ²»µ½·ÅµÄλÖÃÁË£¬Ò²ÏÂÔØÁËtomcat¡£¸Ä»·¾³±äÊýµÄʱºòÐèÒªÕÒµ½java-homeºóÃæµÄλÖᣡ£ÎÒÔõô²ÅÄÜÕÒµ½ÄØ£¿
»¹ÓоÍÊÇÔõôÕÒµ½ÏÂÔØºÃÁ˵ĵ«Íü¼ÇλÖõÄÎļþÄØ£¿ÓÃ×¢²á±íÂð£¿
ºÃÏñ¸újspû¹ØÏµµÄ°É£¿£¿Ôõ ......

JSPÊÓÆµ

Ë­ÓйØÓÚJSPѧϰµÄºÃµÄÊÓÆµ£¬Ð»Ð»
È¥µç¿ÉÏËÑ



ÊÓÆµÑ§Ï°¹ÌÈ»¿ÉÒÔÔö¿ìÄãµÄѧϰËÙ¶È£¬µ«ÊǽµµÍÁËÄãµÄѧϰÄÜÁ¦£¬ÓÀÔ¶¸ú×űðÈ˵Ä˼·×ß¶Ô×Ô¼º±¾Éí¾ÍÊÇÒ»ÖÖ»µ´¦

¿´Ò»ÏÂÅàѵרÀ¸ÀïÓÐûÓÐÏàÓ¦µÄÊÓÆµ...
......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ