#include <sys/types.h>#include <unistd.h>#include <stdio.h>#include <sys/wait.h>int main(int argc,char *argv[]){	int count=0;	int stat;	int i;	char message[50];	memset(message,0,50);	pid_t child;	child=fork();	char *command="ssssss";	if(child==0)	{		count=3;		printf("%s\n",command);		strcpy(message,"this is child");		sleep(5);		printf("child over!\n");		exit(5);	}	else if (child>0)	{		count=5;		strcpy(message,"i'm father");	}	/*	for(i=0;i<count;i++)	{		printf("%s\n",message);		sleep(1);	}	sleep(20);	*/	wait(&stat);	if(WIFEXITED(stat))	{		printf("child exit code=%d",WEXITSTATUS(stat));	}	//printf("%d,%d\n",child,wait(&stat));	printf("child process over!\n");	return 0;}