include <stdio.h>
- printf()
- fflush()
- stdout
include <stdlib.h>
-exit()
include <unistd.h>
-sleep()
-read()//串口读取
-write() //串口写入
-close() //关闭串口
- printf()
- fflush()
- stdout
- perror
-exit()
include <unistd.h>
-sleep()
-read()//串口读取
-write() //串口写入
-close() //关闭串口