ubuntu ϵĵÚÒ»¸öC³ÌÐò
ʹÓà gcc ÔÚ ubuntu Ï ±àÒë Ò»¸ö C³ÌÐò £º
µÚÒ»²½Ö裺´ò¿ª ÖÐ¶Ë £¨Õâ¸ö ÖªµÀ°É£¿£©
ÊäÈë sudo gedit no.c (no.cΪCÎļþÃû×Ö)
sudo ±íʾÄãÊäÈëµÄÃüÁî¾ßÓйÜÀíԱȨÏÞ
gedit ±íʾÄãÒª±à¼Ò»¸öÎļþ
on.c¾ÍÊÇÄãÒª±à¼µÄÎļþÁËŶ£¬Èç¹û¸ÃÎļþ²»´æÔÚ£¬ÏµÍ³»áн¨Ò»¸öÎļþµÄ
µÚ¶þ²½Ö裺ÊäÈëC´úÂë²¢±£´æ£¨²»ÒªÓÐÓï·¨´íÎóŶ£©
µÚÈý²½Ö裺ÊäÈë sudo gcc -o no no.c ÕâÑù¾Í»á½øÐбàÒ룬Èç¹û±àÒë³É¹¦Á˾ͽøÐÐÏÂÒ»²½£¬·ñÔò¼ì²é
ÄãµÄ´úÂëÊÇ·ñÓÐ´í £»sudo µÄÒâ˼ºÍÉÏÃæÒ»Ñù ; gccÊDZíʾÓÃGCC±àÒëÆ÷±àÒë ; £o ÊÇÉú³ÉÄ¿±ê
Îļþ £»no ÊÇÄãÒªÉù³ÆµÄÄ¿±êÎļþµÄÃû×Ö£»no.cÊÇÔ´Îļþ£¨¾ÍÊÇÓÃÀ´Éù³ÆÄ¿±êÎļþµÄÔ´Îļþ£©
µÚËIJ½Ö裺Èç¹ûûÓдíÎó£¬Ö´ÐÐ ÕâÒ»¸ö²½Ö裺 ./no ±íʾÔËÐбàÒëºÃµÄÎļþ
ºÃÁË£¬ÒÔÉ϶¼ÊÇÎÒ³õѧ UBUNTUµÄÐĵà ÈçÓÐÀí½â²»¶ÔµÄ£¬ÇëÖ¸³öŶ £¡
Ïà¹ØÎĵµ£º
Ò»¡¢¸ö¾¹ý±àÒëµÄC/C++µÄ³ÌÐòÕ¼ÓõÄÄÚ´æ·Ö³ÉÒÔϼ¸¸ö²¿·Ö:
1¡¢Õ»Çø£¨stack£©£ºÓɱàÒëÆ÷×Ô¶¯·ÖÅäºÍÊÍ·Å £¬´æ·Åº¯ÊýµÄ²ÎÊýÖµ¡¢¾Ö²¿±äÁ¿µÄÖµµÈ£¬ÉõÖÁº¯ÊýµÄµ÷Óùý³Ì¶¼ÊÇÓÃÕ»À´Íê³É¡£Æä²Ù×÷·½Ê½ÀàËÆÓÚÊý¾Ý½á¹¹ÖеÄÕ»¡£
¡¡¡¡2¡¢¶ÑÇø£¨heap£© £ºÒ»°ãÓɳÌÐ ......
C±äÁ¿µÄ´æ´¢·½Ê½-¡°¾²Ì¬´æ´¢¡±ºÍ¡°¶¯Ì¬´æ´¢¡± ±äÁ¿µÄ´æ´¢·½Ê½¿É·ÖΪ¡°¾²Ì¬´æ´¢¡±ºÍ¡°¶¯Ì¬´æ´¢¡±Á½ÖÖ¡£ ¾²Ì¬´æ´¢±äÁ¿Í¨³£ÊÇÔÚ±äÁ¿¶¨Òåʱ¾Í·Ö¶¨´æ´¢µ¥Ôª²¢Ò»Ö±±£³Ö²»±ä£¬Ö±ÖÁÕû¸ö³ÌÐò½áÊø¡£È«¾Ö±äÁ¿¼´ÊôÓÚ´ËÀà´æ´¢·½Ê½¡£¶¯Ì¬´æ´¢±äÁ¿ÊÇÔÚ³ÌÐòÖ´Ðйý³ÌÖУ¬Ê¹ÓÃËüʱ²Å·ÖÅä´æ´¢µ¥Ôª£¬Ê¹ÓÃÍê±ÏÁ¢¼´ ......
N µ±ÓÃÁ½¸ö²¹Âë±íʾµÄ´ø·ûºÅÊý½øÐÐÔËËãʱ£¬N=1±íʾÔËËãµÄ½á¹ûΪ¸ºÊý£»N=0±íʾÔËËãµÄ½á¹ûΪÕýÊý»òÁã.
Z Z=1±íʾÔËËãµÄ½á¹ûΪÁ㣬Z=0±íʾÔËËãµÄ½á¹û·ÇÁã¡£
C ¿ÉÒÔÓÐ4ÖÖ·½·¨ÉèÖÃCµÄÖµ£º
¼Ó·¨ÔËË㣨°üÀ¨CMN£©£ºµ±ÔËËã½á¹û²úÉúÁ˽øÎ»Ê±£¨ÎÞ·ûºÅÊýÒç³ö£©£¬C=1£¬·ñÔòC=0¡£
¼õ·¨ÔËË㣨°üÀ¨CMP£©£ºµ±ÔËËãʱ²úÉúÁ˽èλʱ£¨ÎÞ·ûºÅÊ ......
#include <iostream.h>
void fun0(int* p)
{
int* a=new int[3];
*a=0;
*(a+1)=1;
*(a+2)=2;
p=a;
}
void fun1(int* &p)
{
int* a=new int[3];
*a=0;
*(a+1)=1;
*(a+2)=2;
p=a;
}
void fun2(int* p)
{
*p=0;
*(p+1)=1;
*(p+2)=2;
}
//warning:returning address of local va ......
ÈçºÎÀí½âC run-time library £¨CÔËÐÐʱ¿â£©
×¢£º ÒÔÏÂÄÚÈݲ¿·ÖÒý×ÔCSNDÖÐÏà¹ØÌÖÂÛµÄÌû×Ó£¬²¢½áºÏ×Ô¼ºµÄÀí½âÕûÀí¶ø³É¡£½ö¹©²Î¿¼¡£
1)ÔËÐÐʱ¿â¾ÍÊÇ C run-time library£¬ÊÇ C ¶ø·Ç C++ ÓïÑÔÊÀ½çµÄ¸ÅÄî:È¡Õâ¸öÃû×Ö¾ÍÊÇÒòΪÄãµÄ C ³ÌÐòÔËÐÐʱÐèÒªÕâЩ¿âÖеĺ¯Êý.
2)C ÓïÑÔÊÇËùνµÄ“СÄں˔ÓïÑÔ£¬¾ÍÆäÓïÑÔ±¾ÉíÀ´Ë ......