#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,child2;	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");	}		child2=fork();	if(child2==0)	{		printf("other child run....\n");		sleep(3);		exit(4);	}	waitpid(child,&stat,WNOHANG);	if(WIFEXITED(stat))	{		printf("child exit code=%d",WEXITSTATUS(stat));	}	//printf("%d,%d\n",child,wait(&stat));	printf("child process over!\n");	return 0;}