操作系统第2次实验报告：创建进程

#include<stdio.h>
#include<sys/types.h>
#include<unistd.h>
int main(){
	pid_t fpid;
	int count=0;
	fpid=fork();
	if(fpid<0)
		printf("error int fork!");
	else if(fpid==0){
		printf("Child process,myprocess id is %d\n",getpid());
		count++;
	}
	else{
		printf("Parent proess,my process id is %d\n",getpid());
		count++;
		fpid=fork();
		if(fpid<0)
			printf("error int fork!");
		else if(fpid==0){
			printf("Child process,myprocess id is %d\n",getpid());
			count++;
		}
		else{
			printf("Parent proess,my process id is %d\n",getpid());
			count++;
		}
	}
	printf("Count: %d\n",count);
	sleep(300);
	return 0;
}