代码：

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
#include<sys/types.h>
int main(void)
{
	int result =-1;
	int fd[2],nbytes;
	pid_t pid;
	char string[80]="ni hao, pipe!";
	char readbuffer[80];
	int *write_fd=&fd[1];
	int *read_fd=&fd[0];
	result=pipe(fd);
	if(-1==result)
	{
		printf("create pipe failed\n");
		return -1;
	}
	pid=fork();
	if(-1==pid)
	{
		printf("fork course failed!\n");
		return -1;
		
	}
	if(0==pid)
	{
		close(*read_fd);
		result=write(*write_fd,string,strlen(string));
		return 0;
	}
	else
	{
		close(*write_fd);
		nbytes=read(*read_fd,readbuffer,sizeof(readbuffer));
		printf(" recv %d ge num,content is:%s\n",nbytes,readbuffer);
	}
	return 0;
}

运行结果：