perror表

#define EPERM   1 /* Operation not permitted */
#define ENOENT  2 /* No such file or directory */
#define ESRCH   3 /* No such process */
#define EINTR   4 /* Interrupted system call */
#define EIO     5 /* I/O error */
#define ENXIO   6 /* No such device or address */
#define E2BIG   7 /* Argument list too long */
#define ENOEXEC 8 /* Exec format error */
#define EBADF   9 /* Bad file number */
#define ECHILD 10 /* No child processes */
#define EAGAIN 11 /* Try again */
#define ENOMEM 12 /* Out of memory */
#define EACCES 13 /* Permission denied */
#define EFAULT 14 /* Bad address */
#define ENOTBLK 15 /* Block device required */
#define EBUSY  16 /* Device or resource busy */
#define EEXIST 17 /* File exists */
#define EXDEV  18 /* Cross-device link */
#define ENODEV 19 /* No such device */
#define ENOTDIR 20 /* Not a directory */
#define EISDIR 21 /* Is a directory */
#define EINVAL 22 /* Invalid argument */
#define ENFILE 23 /* File table overflow */
#define EMFILE 24 /* Too many open files */
#define ENOTTY 25 /* Not a typewriter */
#define ETXTBSY 26 /* Text file busy */
#define EFBIG  27 /* File too large */
#define ENOSPC 28 /* No space left on device */
#define ESPIPE 29 /* Illegal seek */
#define EROFS  30 /* Read-only file system */
#define EMLINK 31 /* Too many links */
#define EPIPE  32 /* Broken pipe */
#define EDOM   33 /* Math argument out of domain of func */
#define ERANGE 34 /* Math result not representable */