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1. ÏÈ¿´ÏÂÃæ´úÂë:
#include<stdio.h>
#include <sys/types.h> //pid_tÀàÐͶ¨Òå
#include <unistd.h> //º¯Êýfork()£¬getpid()¶¨Òå
void main ()
{
pid_t pid;
pid=fork();
if (pid < 0)
printf("error in fork!");
else if (pid == 0)
printf("i am the child process, my process id is %d\n",getpid());
else
printf("i am the parent process, my process id is %d\n",getpid());
}
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