//pipe.c
#include <stdio.h>
#include <unistd.h>
#include <string.h>
int main() {
char buffer[256];
memset(buffer, 0, sizeof(buffer));
int fildes[2];//fildes[0]接受数据,fildes[1]发送数据
if (-1 == pipe(fildes)) {
printf("创建管道失败\n");
return 1;
}
int pid = fork();
if (pid == 0) { //子进程
int nbyte = write(fildes[1], "你好呀,我是子进程", strlen("你好呀,我是子进程"));
printf("写了%d字节\n", nbyte);
} else {
read(fildes[0], buffer, sizeof(buffer));
printf("内容%s\n", buffer);
}
return 0;
}
运行结果: