c++问题，求解答！

2025-02-12 04:42:16

推荐回答（1个）

回答1：

你说的是main函数中的return？ return 0; 是告诉操作系统你的程序运行正常，而其他数字是代表了一个错误号。但是有时我们可以不用这么准确，错误了返回1就可以了。但是在驱动编程中最好把各个错误号对应好：
下面是返回值的具体意义：

EPERM Operation not permitted 1
ENOENT No such file or directory 2
ESRCH No such process 3
EINTR Interrupted function 4
EIO I/O error 5
ENXIO No such device or address 6
E2BIG Argument list too long 7
ENOEXEC Exec format error 8
EBADF Bad file number 9
ECHILD No spawned processes 10
EAGAIN No more processes or not enough memory or maximum nesting level reached 11
ENOMEM Not enough memory 12
EACCES Permission denied 13
EFAULT Bad address 14
EBUSY Device or resource busy 16
EEXIST File exists 17
EXDEV Cross-device link 18
ENODEV No such device 19
ENOTDIR Not a directory 20
EISDIR Is a directory 21
EINVAL Invalid argument 22
ENFILE Too many files open in system 23
EMFILE Too many open files 24
ENOTTY Inappropriate I/O control operation 25
EFBIG File too large 27
ENOSPC No space left on device 28
ESPIPE Invalid seek 29
EROFS Read-only file system 30
EMLINK Too many links 31
EPIPE Broken pipe 32
EDOM Math argument 33
ERANGE Result too large 34
EDEADLK Resource deadlock would occur 36
EDEADLOCK Same as EDEADLK for compatibility with older Microsoft C versions 36
ENAMETOOLONG Filename too long 38
ENOLCK No locks available 39
ENOSYS Function not supported 40
ENOTEMPTY Directory not empty 41
EILSEQ Illegal byte sequence 42
STRUNCATE String was truncated 80
希望能解决您的问题。

就打算生多个孩子了，想要个儿子,生男生女清宫表准吗

脑死亡和正常死亡的区别

乔丹11代最后一次复刻是在什么时候?

c语言，帮一下忙

想买鱼竿，哪家淘宝店，比较便宜，又质量好？

把一个底面半径为10厘米，高为30厘米的圆柱削成一个最大的圆锥要削去( )立方厘米？

响应式媒体查询为什么有时查询不到css

苹果iPhone手机屏幕突然变暗但是亮度条不变怎么说

请大家帮我看一下，这个是真的还是假的？