10.3作业

#include <myhead.h>
int main(int argc, const char *argv[])
{
mkfifo(“./f1”,0777);
mkfifo(“./f2”,0777);
pid_t cpid = fork();
if(0 < cpid)
{
int fdw = open(“./f1”,O_WRONLY);
int fdr = open(“./f2”,O_RDONLY);
char buf[128] = “”;
while(1)
{
bzero(buf,sizeof(buf));
printf(“父进程请输入>>>>>\n”);
scanf(“%s”,buf);
write(fdw,buf,sizeof(buf));
bzero(buf,sizeof(buf));
read(fdr,buf,sizeof(buf));
printf(“父进程接收打印：%s\n”,buf);

	}close(fdw);close(fdr);
}
if(0 == cpid)
{int fdr = open("./f1",O_RDONLY);int fdw = open("./f2",O_WRONLY);char buf[128] = "";while(1){	bzero(buf,sizeof(buf));read(fdr,buf,sizeof(buf));printf("子进程接收打印：%s\n",buf);bzero(buf,sizeof(buf));printf("子进程请输入>>>>>\n");scanf("%s",buf);write(fdw,buf,sizeof(buf));}close(fdw);close(fdr);
}
return 0;

}