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

¹ØÓÚc·ç¸ñ×Ö·û´® - C/C++ / C++ ÓïÑÔ

¿´primerµÚ115Ò³£¬¿´µ½Ò»¸ö·¶Àý£º
C/C++ code:


const char *cp1="A string example";
const char *cp2="A different string";
char largeStr[16+18+2];
strncpy(largeStr,cp1,17);
strncat(largeStr," ",2);
strncat(largeStr,cp2,19);
cout<<largeStr<<endl;





²»Ì«Àí½â°¡£¬ *cp1ÀïÃæÊÇ16ºÍ×Ö·û£¬*cp2ÀïÃæÊÇ18¸ö×Ö·û£¬ÎªÁËÈÝϽáÊø·û£¬"strn"º¯ÊýµÚÈý¸ö²ÎÊý¶¼¼Ó1£¬ÎÒÔõô¾õµÃ£¬ÒªÊǰüÀ¨½øÀ´Á˽áÊø·û£¬×îºólargrStr×Ö·û´®¾Í»á³ÉÁË"A string example\0 A different string\0"
ÎÒ¾õµÃÕâÑùÊä³öµÄʱºò¾ÍÖ»ÏÔʾԭÀ´cp1µÄÄÚÈݾͻáÓöµ½½áÊø·ûÁ˰¡£¬µ«ÊǾ­¹ýʵ¼ù£¬Ö¤Ã÷ÊéÖÐȷʵÊÇÕýÈ·µÄ£¬Èç¹ûµÚÈý¸ö²ÎÊý²»¼Ó1£¬ÖмäÊä³öһЩÂÒÂ룬µ«ÊDz»Àí½â£¬²»ÖªµÀÎÒÓÐûÓÐ˵Ã÷°×ÎÒµÄÒâ˼£¬Ë­ÄܽâÊÍÒ»ÏÂ
ºÇºÇ£¬¿´¿´strncpyµÈµÄÔ´´úÂë°É

Â¥ÉϵÄÒâ˼ÊÇ?????û̫Ã÷°×°¡£¬µÚÈý¸ö²ÎÊý²»ÊÇ˵½øÐвÙ×÷µÄ×Ö·û¸öÊýÂ𣿲»ÖªµÀÂ¥ÉÏÓÐûÓÐÃ÷°×ÎÒµÄÒâ˼


Ŷ£¡Â¥ÉϵÄ˵µÄÓеÀÀí£¡£¡£¡£¡ÄÇÒªÊÇûÓÐ\0µÄʱºòstrncpy¾ÍÒ»Ö±ÍùºóÕÒ£¬ÖªµÀÕÒµ½\0µÄʱºò²Å¼ÌÐøÐ´£¬ËùÒÔÖмä¾Í»áÊä³öÂÒÂëÊǰɣ¬¸Ðл¥Éϵģ¡Ã÷°×ÁË¡£½áÌùÁË

µÚÈý¸ö²ÎÊýÊÇÄãÖ¸¶¨¿½±´µÄ×Ö·û´®µÄ³¤¶È£¬²»Ò»¶¨ÊÇÕû¸ö³¤¶È°¡£¡£¡£¡
C/C++ code:

const char *cp1="A string example";
const char *cp2="A different string";
char largeStr[


Ïà¹ØÎÊ´ð£º

linux»·¾³ÏÂgethostbynameº¯ÊýÎÊÌâ - C/C++ / CÓïÑÔ

дÁ˸ö²âÊÔ³ÌÐòÈçÏÂ
   
  struct hostent *hp; 
char AlarmDevIP[20];  
  int x2;

hp = gethostbyname("www.google.com");
if (hp)
{ ......

C/C++ÀïÆÁshift+f10¼üÒªÔõôд£¡ - C/C++ / C++ ÓïÑÔ

SHIFT¼ÓF10ÓëÄǸö¼üÓÒctrl±ßÉϵÄÄǸö¼ü¹¦ÄÜÒ»Ñù£¬ÏëÆÁÕâ¸ö
µ«²»ÖªÒªÔõôдÄǸö×éºÏ¼ü£¡
ÓÐûÄĸö´óÏÀ·ÅÒ»¶ÎÕâ¸öµÄ´úÂë»òдһ¶Î
http://topic.csdn.net/u/20090609/15/7dc9fb70-243f-4070-9cfd-34e48b66e6c6.html ......

C/C++/MFCȺ - VC/MFC / ·Ç¼¼ÊõÀà

´ó¼ÒºÃ£¬ÕâÊÇÒ»¸öÖ÷ÒªÃæÏòc/c++/mfcµÄȺ£¬×î½ü½øÐÐÁËÒ»´Î´óÇåÀí£¬»¶Ó­¸÷λ¸ßÊÖ¼ÓÈ룬ºÃѧ°®ÎʵÄÐÂÊÖ£¬Ò²¿ÉÒÔÉêÇëµÄ£¬ÉêÇë¸ñʽ Ö°Òµ£¨c/c++/mfc ÈÎѡһ»òÕ߶ࣩ ¹¤×÷ÄêÏÞ£¨Ñ§ÉúÖ±½Óд´ó¼¸£©¾ÍÐÐÁË£¬ÈëȺµÄÒªÇó¾ÍÊÇÒª» ......

C/C++/MFCȺ - C/C++ / ·Ç¼¼ÊõÇø

´ó¼ÒºÃ£¬ÕâÊÇÒ»¸öÖ÷ÒªÃæÏòc/c++/mfcµÄȺ£¬×î½ü½øÐÐÁËÒ»´Î´óÇåÀí£¬»¶Ó­¸÷λ¸ßÊÖ¼ÓÈ룬ºÃѧ°®ÎʵÄÐÂÊÖ£¬Ò²¿ÉÒÔÉêÇëµÄ£¬ÉêÇë¸ñʽ Ö°Òµ£¨c/c++/mfc ÈÎѡһ»òÕ߶ࣩ ¹¤×÷ÄêÏÞ£¨Ñ§ÉúÖ±½Óд´ó¼¸£©¾ÍÐÐÁË£¬ÈëȺµÄÒªÇó¾ÍÊÇÒª» ......

c¾²Ì¬±àÒëÁíÒ»¸öÎļþ¼ÐµÄ¿âº¯Êý - C/C++ / CÓïÑÔ

ÔÚ¸ùĿ¼/libÖдæ·ÅÒ»¸ölog.c£¬log.h£¬²¢ÓÃÏÂÃæµÄÓï¾ä£º
gcc -c log.c
ar crv liblog.a log.o
±àÒë³öÒ»¸öliblog.a¾²Ì¬¿â£¬È»ºóÔÚÎļþ¼Ð£º/testfileÖд´½¨Ò»¸ötest.cºÍtestc.c£¬test.cÖÐÒýÓÃÁËtestc.cÖж¨ÒåµÄ·½·¨ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ