C_Êý¾ÝÀàÐÍת»»
Ô´Âë:
# include <stdio.h>
int main()
{
/* ¶¨Òå±äÁ¿²¢¸³³õÖµ */
int a = 5;
char c = 'a'; // 'a'µÄASCÂëµÄֵΪ97
float f = 5.3;
double m = 12.65;
double result;
/* ͬÀàÐÍÊý¾Ý¼ä½øÐÐÔËËã²¢Êä³ö½á¹û */
printf("a + c = %d\n", a + c); // 97+5=102
printf("a + c = %c\n", a + c); // 102¶ÔÓ¦µÄASCIIÂë×Ö·ûΪ'f'
printf("f + m = %f\n", f + m); // 5.3+12.65=17.95
/* ²»Í¬ÀàÐÍÊý¾Ý¼ä½øÐÐÔËËã²¢Êä³ö½á¹û */
printf("a + m = %f\n", a + m); //5+12.65=17.65
printf("c + f = %f\n", c + f); //97+5.3=102.3
/* ½«ÉÏÊöËĸö±äÁ¿½øÐлìºÏÔËË㣬²¢Êä³ö½á¹û */
result = a + c * (f + m);
printf("double = %f\n", result); //5+97*(5.3+12.65)=1746.15
return 0;
}
Ïà¹ØÎĵµ£º
ÏñPHPºÍperlÒ»Ñù£¬MySQLÒ²ÌṩµÄCÓïÑÔʹÓõÄAPI. C´úÂëµÄAPIÊÇËæMySQLÒ»Æð·¢²¼µÄ¡£ Ëü°üº¬ÔÚmysqlclient¿âÖУ¬ ¿ÉÒÔʹC³ÌÐòÀ´·ÃÎÊÊý¾Ý¿â¡£
MySQLÔ´Âë°üÖеÄÐí¶à¿Í»§¶Ë¶¼ÊÇÓÃCдµÄ¡£ Èç¹ûÄãÕýÔÚÕÒʹÓÃÕâЩC APIµÄÀý×Ó£¬ ¿ÉÒÔ¿´¿´¿Í»§¶ËµÄд·¨¡£Äã¿ÉÒÔÔÚMySQLÔ´Âë°üµÄclientsĿ¼ÕÒµ½ÕâЩÀý×Ó¡£
& ......
2009-11-01 17:31:00
1¡¢Standard C£¬°üÀ¨»ù±¾µÄÓï·¨¶¨Ò壬¿âº¯Êý²Î¿¼
http://www-ccs.ucsd.edu/c/
»òÕß
The C Library Reference Guide
http://www.acm.uiuc.edu/webmonkeys/book/c_guide/
2¡¢The UNIX Programming Environment
http://www.iu.hio.no/~mark/unix/unix_toc.html
»ò
The Art of ......
www.us-ip.com
ÃÀ¹úרÀû·¨Ìõ¿î102(c),102(d)
35 U.S.C. 102:
A person shall be entitled to a patent unless -
(c) he has abandoned the invention
102(c)Ìõ¿îÖ¸³öÈç¹û·¢Ã÷ÈËÒÅÆúÁË·¢Ã÷£¬ÄÇô·¢Ã÷È˽«²»ÄÜ»ñµÃÃÀ¹úרÀû¡£·¢Ã÷ÈËÒÅÆú·¢Ã÷±ØÐëÊǹÊÒâµÄÐÐΪ£¬²¢ÇÒÒâͼ½«ÒÅÆúµÄ·¢Ã÷·îÏ׸øÉç»á¡£·¢Ã÷È˲»Ò»¶¨ÐèÒª¹«¿ªÐûÊ¾Õ ......
ͻ񻣼
±¾ÎÄ´Ó½éÉÜ»ù´¡¸ÅÄîÈëÊÖ£¬Ì½ÌÖÁËÔÚC/C++ÖжÔÈÕÆÚºÍʱ¼ä²Ù×÷ËùÓõ½µÄÊý¾Ý½á¹¹ºÍº¯Êý£¬²¢¶Ô¼ÆÊ±¡¢Ê±¼äµÄ»ñÈ¡¡¢Ê±¼äµÄ¼ÆËãºÍÏÔʾ¸ñʽµÈ·½Ãæ½øÐÐÁ˲ûÊö¡£±¾ÎÄ»¹Í¨¹ý´óÁ¿µÄʵÀýÏòÄãչʾÁËtime.hÍ·ÎļþÖÐÉùÃ÷µÄ¸÷ÖÖº¯ÊýºÍÊý¾Ý½á¹¹µÄÏêϸʹÓ÷½·¨¡£
¹Ø¼ü×Ö£ºUTC£¨ÊÀ½ç±ê׼ʱ¼ä£©£¬Calendar Time£¨ÈÕÀúʱ¼ä£©£¬epoch ......