Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Ò»µÀC±ÊÊÔÌâ

Author: Scurffybear Date: 2009.09.08
×î½üÔÚÕÐÐÂÈË£¬ÏÂÃæÊÇÒ»µÀCµÄÃæÊÔÌ⣬ÃæÊÔµÄÓ¡¶ÈÈËÖУ¬Ã»ÓÐÒ»¸öÈË×ö¶Ô£¬ÎÒ´Ö¿´ÁËÒ»ÏÂÌ⣬ÔÚûÓп´´ð°¸Ç°£¬ÎÒ×Ô¼ºÒ²×ö´íÁË£¬àÅ£¬Êǵģ¬Ã»É¶²»ºÃÒâ˼µÄ£¬ÎÒ¾õµÃÕâ¸öÌâÄ¿ºÜÈÝÒ×ʹÈ˲úÉúÎó½â£¬ÓÖ»òÕßÔñ£ÃÓÐÉîºñ¹¦µ×µÄÈËÄܶã¹ýÕâÒ»¸öÕÏÑÛ·¨£¿
ÒÔÏÂÊÇÌâÄ¿£¬
main()
{
char *p1=“name”;
char *p2;
p2=(char*)malloc(20);
memset (p2, 0, 20);
while(*p2++ = *p1++);
printf(“%s\n”,p2);
}
д³ö´òÓ¡ÄÚÈÝ£®
ÎÒÈÏΪÊä³öÊÇ'name'£¬ÕýÈ·´ð°¸ÊÇÊä³ö¿Õ£¬ÎÒÏëÁË°ëÌìûÏëÃ÷°×£¬×îºó°ÑÕâ¶Î³ÌÐò·ÅÔÚVC++½øÐе¥²½¸ú×ٲŸãÃ÷°×£®ÊºóÏëÏëÕâô¼òµ¥µÄ³ÌÐòÄܹ»Ê¹¼¸ºõËùÓÐÈ˶¼µôÈëͬһ¸öÏÝÚ壬ʵÔÚºÜÓÐÒâ˼£®¿ÉÄÜÕæÕýµÄ¸ßÊÖ¿ÉÄܲ»Ð¼ÓÚÕâÒ»ÐÅÊÖÄéÀ´µÄСÎÊÌ⣬µ«ÊÇȷʵÊÇÈÃÎÒÃÇÕâЩ°ëµõ×Ó×ö¼¼ÊõºÜÈÝÒ×·¸´íÎóµÄÒ»¸öСÎÊÌ⣮Ҳ˵Ã÷¹«Ë¾ÎüÒýÁ¦Ì«²î£¬Ã»Óлù´¡ÔúʵµÄÈËÇ°À´Ó¦Æ¸£¬²»¹ý£¬¶ÔÓÚ¼¼ÊõÖ§³Ö·ÇÑз¢£¬ÕæÕýÔÚ¹¤×÷Öлù±¾²»»áÓõ½Õâ·½ÃæµÄ֪ʶ£®


Ïà¹ØÎĵµ£º

C++´¦ÀíconstÀàÐͱäÁ¿ÓëCµÄ²»Í¬

    constÓë#define×î´óµÄ²î±ð£¬ConstÔÚ¶ÑÕ»·ÖÅäÁ˿ռ䣬¶ø#defineÖ»ÊǰѾßÌåÊýÖµÖ±½Ó´«µÝµ½Ä¿±ê±äÁ¿°ÕÁË¡£»òÕß˵£¬constµÄ³£Á¿ÊÇÒ»¸öRun-TimeµÄ¸ÅÄËûÔÚ³ÌÐòÖÐȷȷʵʵµÄ´æÔÚ¿ÉÒÔ±»µ÷Óᢴ«µÝ¡£¶ø#define³£Á¿ÔòÊÇÒ»¸öCompile-Time¸ÅÄËüµÄÉúÃüÖÜÆÚÖ¹ÓÚ±àÒëÆÚ£ºÔÚʵ¼Ê³ÌÐòÖÐËûÖ»ÊÇÒ»¸ö³£Êý¡¢Ò»¸öÃüÁîÖе ......

´®¿ÚͨÐÅ£¨RS232µÄC³ÌÐò£©

BioscomʹÓÃ×¢Ò⣺´®¿Ú½ÓÏß·½Ê½Îª4£¬6£»7£¬8·Ö±ð¶Ì½Ó¡£½ö´Ëº¯ÊýÒªÇó¡£
·ñÔò»áÔì³ÉÖ»ÄܽÓÊÜÎÞ·¨·¢ËÍÊý¾Ý¡£º¯Êý·µ»ØÖµ´íÎó£¡
º¯ÊýÃû:   bioscom    
  ¹¦     ÄÜ:   ²Ù×÷portÖ¸¶¨µÄRS232Ò첽ͨѶ¿Ú  
  Óà    ......

cºê¶¨ÒåµÄ¼¼ÇÉ×ܽá


http://blog.csdn.net/eroswang/archive/2009/06/12/4265046.aspx
1,·ÀÖ¹Ò»¸öÍ·Îļþ±»Öظ´°üº¬
#ifndef COMDEF_H
#define COMDEF_H
//Í·ÎļþÄÚÈÝ
#endif
2,ÖØж¨ÒåһЩÀàÐÍ,·ÀÖ¹ÓÉÓÚ¸÷ÖÖƽ̨ºÍ±àÒëÆ÷µÄ²»Í¬,¶ø²úÉúµÄÀàÐÍ×Ö½ÚÊý²îÒì,·½±ãÒÆÖ²¡£
typedef unsigned char      boolea ......

ÈçºÎÔÚC++Öе÷ÓÃCµÄ´úÂë

ÒÔÇ°Ôø¾­×ܽá¹ýһƪ(http://www.cppblog.com/franksunny/archive/2007/11/29/37510.html
)£¬¹ØÓÚÔÚ
C
ÖÐÈçºÎµ÷ÓÃ
C++
µÄ´úÂ룬µ±Ê±²¢Î´×öÍêÈ«µÄÕ¹¿ª£¬Ö»ÊǼòµ¥µÄ×öÁËϵ÷ÊÔ£¬×î½ü¿´µ½Ò»¸öÌâÄ¿ÒªÇóʵÏÖ
C
ºÍ
C++
ÖдúÂëµÄ»¥Ïàµ÷Óã¬Æä½á¹ûËäÈ»¶¼ÊÇͨ¹ý
extern “C”
À´ÊµÏÖ
£¬µ«ÊǾßÌ廹ÊÇÓÐЩ²î±ðµÄ¡ ......

C/C++Öеĺ¯Êý²ÎÊý´«µÝ»úÖÆ(תÔØ)

 Ò»¡¢ º¯Êý²ÎÊý´«µÝ»úÖƵĻù±¾ÀíÂÛ ¡¡¡¡º¯Êý²ÎÊý´«µÝ»úÖÆÎÊÌâÔÚ±¾ÖÊÉÏÊǵ÷Óú¯Êý£¨¹ý³Ì£©ºÍ±»µ÷Óú¯Êý£¨¹ý³Ì£©ÔÚµ÷Ó÷¢Éúʱ½øÐÐͨÐŵķ½·¨ÎÊÌâ¡£»ù±¾µÄ²ÎÊý´«µÝ»úÖÆÓÐÁ½ÖÖ£ºÖµ´«µÝºÍÒýÓô«µÝ¡£ÒÔÏÂÌÖÂ۳Ƶ÷ÓÃÆäËûº¯ÊýµÄº¯ÊýΪÖ÷µ÷º¯Êý£¬±»µ÷Óõĺ¯ÊýΪ±»µ÷º¯Êý¡£¡¡¡¡Öµ´«µÝ£¨passl-by-value£©¹ý³ÌÖУ¬±»µ÷º¯ÊýµÄÐÎʽ²Î ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ