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

C³ÌÐòÉè¼ÆÌ·ºÆÇ¿°æ×ܽᣨһ£©

1¡¢Á½¸öfloatÐÍÊý¾ÝÏà¼Ó£¬Ò²¶¼ÏÈת»¯³ÉdoubleÐÍ£¬È»ºóÔÙÏà¼Ó£¬ÒÔÌá¸ßÔËË㾫¶È¡£
2¡¢Çó×Ö½ÚÔËËã·ûsizeof£¬¼ÇסËü²»ÊÇÒ»¸öº¯Êý¡£
3¡¢++£¬--ÔËËã·ûÖ»ÄÜÓÃÓÚ±äÁ¿£¬¶ø²»ÄÜÓÃÓÚ³£Á¿»òÕß±í´ïʽ¡£
4¡¢++£¬--µÄ½áºÏ·½ÏòÊÇ“×ÔÓÒÏò×ó”¡£
  int i=3;
  cout<<-i++<<endl;
  cout<<i<<endl;
   µ«ÉÏÃæµÄ³ÌÐò¶ÎµÄÊä³öÊÇ£º-3  4,˵Ã÷ËäÈ»¸ººÅÔËËã·ûºÍ++ÔËËã·ûͬÓÅÏȼ¶£¬ÇÒ¶¼ÊÇÓÒ½áºÏÐÔ£¬µ«ÊÇ×ÔÔöÔËËã·ûÔÚ±äÁ¿ºóÃæÔò¿Ï¶¨ÊÇÏÈÓúó¼ÓµÄ¡£
5¡¢¶à¸öcaseÓï¾ä¿ÉÒÔ¹²ÓÃÒ»×éÖ´ÐÐÓï¾ä£¬È磺
    case 'A':
    case 'B':
    case 'C':printf();break;
 ÖµÎª'A'¡¢'B'¡¢'C'ʱ¶¼Ö´ÐÐͬһ×éÓï¾ä¡£
 


Ïà¹ØÎĵµ£º

c±àÒë¹ý³Ì

±àÒëµÄ¸ÅÄ±àÒë³ÌÐò¶ÁȡԴ³ÌÐò£¨×Ö·ûÁ÷£©£¬¶ÔÖ®½øÐдʷ¨ºÍÓï·¨µÄ·ÖÎö£¬½«¸ß¼¶ÓïÑÔÖ¸Áîת»»Îª¹¦ÄܵÈЧµÄ»ã±à´úÂ룬ÔÙÓÉ»ã±à³ÌÐòת»»Îª»úÆ÷ÓïÑÔ£¬²¢ÇÒ°´ÕÕ²Ù×÷ϵͳ¶Ô¿ÉÖ´ÐÐÎļþ¸ñʽµÄÒªÇóÁ´½ÓÉú³É¿ÉÖ´ÐгÌÐò¡£
    ±àÒëµÄÍêÕû¹ý³Ì£ºCÔ´³ÌÐò£­£­>Ô¤±àÒë´¦Àí(.c)£­£­>±àÒë¡¢ÓÅ»¯³ÌÐò£¨.s¡¢.asm£©£­£­>»ã± ......

Cº¯ÊýÖ¸Õë×ܽá

±¾ÎĽöÏÞÓÚC£¬Ö÷Òª×Ô¼ºÀÏÍü¡£±ðµÄ·Ï»°ÉÙ˵¡£
1.Basic
Ê×ÏÈ¿¼ÂǺ¯ÊýÔÚº¯ÊýÌåÄڵ͍Ò壬ÈçÏ£º 
#include <stdio.h>
#include <stdlib.h>
 
int main()
{
 int add(int,int); 
 int def(int, int);
 printf("%d\n", add(1,3));
 printf("%d\n", def(3,1));
  ......

CÖеĿÕ


1.   ʲôÊÇ¿ÕÖ¸Õë³£Á¿£¨null pointer constant£©?
[ 6.3.2.3-3] An integer constant expression with the value 0, or such an expression cast to type void *, is called a null pointer constant.
ÕâÀï¸æËßÎÒÃÇ£º0¡¢0L¡¢'\0'¡¢3 - 3¡¢0 * 17 £¨ËüÃǶ¼ÊÇ“integer constant expression”£©ÒÔ¼° ......

C treeviewÖнڵãÕ¹¿ªÎÊÌâ

ÎÒ´ÓÊý¾Ý¿â¶¯Ì¬¶ÁÈ¡2¸ö¸¸½Úµã£º
111
       a
            a1
       b
            b1
       c
&n ......

linuxÏÂgtkÖÐʹÓÃCÁ¬½Ómysql

Code:
1.»·¾³ÅäÖÃ
Ò»°ãÇé¿öϰ²×°ÁËMySQLµÄ»úÆ÷ºÜÉÙ°²×°¿ª·¢°ü£¬Õâ¸öÐèҪעÒâ¡£Ò²¾ÍÊÇÄúÐèÒªÔÚ³ÌÐòÖаüº¬ÕâÑùµÄÓï¾ä£º
#include <mysql.h>
Èç¹ûÔÚ±àÒëµÄʱºòÌáʾº¬ÓÐÀàËÆÓÚÕÒ²»µ½ mysql.h µÄÐÅÏ¢£¬Õâ¾Í˵Ã÷ÄúûÓа²×°Ïà¹Ø¿ª·¢°ü¡£
»¹ÓÐÄú±ØÐ뽨Á¢Ò»¸öÊý¾Ý¿âÓëһЩ±í£¬Õâ¸öÔÚ±¾ÎÄÖлáʹÓá£
2.ÎÒÃÇÏÈÁ´½ÓÊ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ