LINUXÆÚÄ©¸´Ï° ÄÚ´æ¹ÜÀí
¢Ùmallocº¯Êý
ÔÐÍ£ºextern void *malloc(unsigned int num_bytes);
Í·Îļþ£º#include <alloc.h>
¹¦ÄÜ£º·ÖÅ䳤¶ÈΪnum_bytes×Ö½ÚµÄÄÚ´æ¿é¡£
˵Ã÷£ºÈç¹û·ÖÅä³É¹¦Ôò·µ»ØÖ¸Ïò±»·ÖÅäÄÚ´æµÄÖ¸Õ룬·ñÔò·µ»Ø¿ÕÖ¸ÕëNULL¡£µ±ÄÚ´æ²»ÔÙʹÓÃʱ£¬Ó¦Ê¹ÓÃfree()º¯Êý½«ÄÚ´æ¿éÊÍ·Å¡£
¾ÙÀý£º
#include <syslib.h>
#include <alloc.h>
main()
{
char *p;
clrscr(); // clear screen
p=(char *)malloc(100);
if(p)
printf("Memory Allocated at: %x",p);
else
printf("Not Enough Memory!\n");
free(p);
return 0;
} ¢Ú callocº¯Êý
ÔÐÍ£ºextern void *calloc(int num_elems, int elem_size);
Í·Îļþ£º#include <alloc.h>
¹¦ÄÜ£ºÎª¾ßÓÐnum_elems¸ö³¤¶ÈΪelem_sizeÔªËØµÄÊý×é·ÖÅäÄÚ´æ¡£
˵Ã÷£ºÈç¹û·ÖÅä³É¹¦Ôò·µ»ØÖ¸Ïò±»·ÖÅäÄÚ´æµÄÖ¸Õ룬·ñÔò·µ»Ø¿ÕÖ¸ÕëNULL¡£µ±ÄÚ´æ²»ÔÙʹÓÃʱ£¬Ó¦Ê¹ÓÃ
free()º¯Êý½«ÄÚ´æ¿éÊÍ·Å¡£
¾ÙÀý£º
#include <syslib.h>
#include <alloc.h>
main()
{
char *p;
clrscr(); // clear screen
p=(char *)calloc(100,sizeof(char));
if(p)
printf("Memory Allocated at: %x",p);
else
printf("Not Enough Memory!\n");
free(p);
return 0;
} ¢Ûreallocº¯Êý
ÔÐÍ£ºextern void *realloc(void *mem_address, unsigned int newsize);
Í·Îļþ£º#include <alloc.h>
¹¦ÄÜ£º¸Ä±ämem_addressËùÖ¸ÄÚ´æÇøÓòµÄ´óСΪnewsize³¤¶È¡£
˵Ã÷£ºÈç¹û·ÖÅä³É¹¦Ôò·µ»ØÖ¸Ïò±»·ÖÅäÄÚ´æµÄÖ¸Õ룬·ñÔò·µ»Ø¿ÕÖ¸ÕëNULL¡£µ±ÄÚ´æ²»ÔÙʹÓÃʱ£¬Ó¦Ê¹Óà free()º
Ïà¹ØÎĵµ£º
±ÈÈç˵Ҫ¿´
http://broadcast.hzcnc.com/player.asp?code=345&pname=%u65e0%u95f4%u9053
$ curl 'http://broadcast.hzcnc.com/Play.aspx?code=345'
<ASX VERSION = "3.0">
<ENTRY>
<REF HREF = &quo ......
×î½üºÜÊÇÎÞÁÄ£¬°Ñ±¾±¾ÄóöÀ´»»¸öϵͳ»»¸öÐÄÇé¡£ÓÚÊǾö¶¨°ÑÔ½ÅÜÔ½ÂýµÄD°æXP»»µô¡£Õâ´ÎÏÂÔØÁËFEDORA 12 X64£¬×ÜÊÇÄÃË«ºË64λµÄCPUÀ´ÅÜ32λϵͳÒѾÈÃÎÒ²»Ë¬ºÜ¾ÃÁË¡£
ϵͳװºÃÁËÒÔºó·¢ÏÖÓе㲻¶Ô¾¢£¬£À £À
¶«Î÷ºÃ´ó¡£¿´À´ÊÇ·Ö±æÂʵÄÎÊÌ⣬ϵͳ£Ê×Ñ¡Ïî£ÏÔʾ......ºÃÏñ¸Ä²»ÁË.
PS:ÔÚlinuxÏÂÃæ²»×°ÏÔ¿¨ÊDz»ÄܸķֱæÂʵÄ
û° ......
Ò»¡¢LINUXµÄ½ø³Ì״̬ ½©ËÀ̬£ºµ±¸¸½ø³Ì»¹Ã»ÓнáÊøÇ°£¬×Ó½ø³Ì¾ÍÒѾÏȽáÊøÁË£¬Õâʱ×Ó½ø³ÌµÄ×ÊԴûÓÐÈËÀ´»ØÊÕ¡£Í¨³£¸¸½ø³ÌÐèÒªÓÃwaitÀ´µÈ´ý×Ó½ø³ÌµÄ½áÊø¡£
½ø³ÌµÄģʽ£ºÓû§Ä£Ê½(Ö´ÐÐÓû§³ÌÐò)£¬ÄÚºËģʽ(Ö´ÐвÙ×÷ϵͳ´úÂë)
½ø³ÌµÄÀàÐÍ£ºÏµÍ³½ø³Ì£¬Óû§½ø³Ì ¶þ¡¢½ø³Ì¹ÜÀí ¢Ùforkº¯Êý
¹¦ÄÜ£º´´½¨Ò»¸öÈ«Ð嵀 ......