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

c ¶ÁÈ¡Îļþ

#include <stdio.h>
int main ()
{
    FILE *fp1;
    fp1=fopen("test0.txt","rt");
    if(fp1==NULL)
    {
        printf("can not open test0.txt\n");return 0;
    } // {} necessary
    fclose(fp1);// necessary
    return 0;
}


Ïà¹ØÎĵµ£º

CºÍC++»ìºÏ±à³Ì(__cplusplus Óë external "c" µÄʹÓÃ)

http://www.diybl.com/course/3_program/c++/cppjs/20090403/163906.html
CºÍC++»ìºÏ±à³Ì(__cplusplus Óë external "c" µÄʹÓÃ)
www.diybl.com¡¡Ê±¼ä£º2009-04-03¡¡×÷Õß:ÄäÃû ±à¼­:sky µã»÷£º¡¡124 [ÆÀÂÛ]
µÚÒ»ÖÖÀí½â
±ÈÈç˵ÄãÓÃC++¿ª·¢ÁËÒ»¸öDLL¿â£¬ÎªÁËÄܹ»ÈÃCÓïÑÔÒ²Äܹ»µ÷ÓÃÄãµÄDLLÊä³ö(Export)µÄº¯Êý£¬ÄãÐèÒªÓÃexte ......

GCC ÐÂÊÖ c/c++

±¾ÎÄÊÇд¸ø gcc ÐÂÊÖµÄÈëÃÅÎÄÕ£¬ËùÒÔÄÚÈݱȽϼòµ¥¡£Èç¹ûÄãÖªµÀÏÂÃæ3ÌõÃüÁî¶¼¿ÉÒÔ±àÒëc++µÄ»°£¬¾Í²»ÓÃÔÚ±¾ÎÄÀË·Ñʱ¼äÁË
´úÂë:
g++ -Wall hellocpp.cpp
gcc -Wall hellocpp.cpp -lstdc++
gfortran -Wall hellocpp.cpp -lstdc++
×¢£º±¾ÎÄ×îаæÔÚwikiÖÐ http://wiki.ubuntu.org.cn/Gcchowto
£¨½¨Òé´ó¼ÒÖ±½Ó·ÃÎÊwikiÖ ......

W3C ½ÓÁ¬ÍƳö 7 ¸ö HTML ²Ý°¸

×î½ü W3C

Ò»¿ÚÆøÍÆ³ö 7 ¸ö HTML ¹¤×÷²Ý°¸£¬º­¸ÇÁË HTML5£¬HTML RDF£¬HTML Microdata£¬HTML Canvas£¬ HTML
Bidi µÈ±ê×¼¡£ÕâЩ²Ý°¸¶àÊýÓë HTML5 Óйأ¬ËäÈ» HTML5 ±ê×¼µÄÕæÕý·¢²¼ÓëʵÏÖ»¹ÓкÜÔ¶µÄ·£¬µ«Õâ¸öδÀ´×îÓÐǰ;µÄ HTML
±ê×¼ÕýÒýÆðÒµ½ç¹ã·ºµÄ¹Ø×¢¡£
W3C ·¢²¼µÄ 7 ¸ö HTML ¹¤×÷²Ý°¸ÊÇ:
HTML5
: HTML 5 ºËÐ ......

Objective —C µÄµ¥Àýģʽ SingletonʵÏÖ


static
 DataManager 
*
sharedDataManager 
=
 nil;
+
 (DataManager 
*
) sharedManager
{
    @synchronized(self)
 {
        
if
 (sharedDataManager 
==
 nil)
 &nb ......

C unsigned int and int

Ê×ÏȽøÐÐÒ»¸öʵÑ飬·Ö±ð¶¨ÒåÒ»¸ösigned intÐÍÊý¾ÝºÍunsigned intÐÍÊý¾Ý£¬È»ºó½øÐдóС±È½Ï£º
unsigned int a=20;
signed int b=-130;
a>b?»¹ÊÇb>a£¿ÊµÑéÖ¤Ã÷b>a£¬Ò²¾ÍÊÇ˵£­130>20,Ϊʲô»á³öÏÖÕâÑùµÄ½á¹ûÄØ£¿
ÕâÊÇÒòΪÔÚCÓïÑÔ²Ù×÷ÖУ¬Èç¹ûÓöµ½ÎÞ·ûºÅÊýÓëÓзûºÅÊýÖ®¼äµÄ²Ù×÷£¬±àÒëÆ÷»á×Ô¶¯×ª»¯ÎªÎÞ·ûºÅ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ