NULL (CRT)NULL (CRT)

NULL 是与许多指针操作和函数一起使用的 null 指针值。NULL is the null-pointer value used with many pointer operations and functions. 它等效于 0。It is equivalent to 0. 在下列标头文件中定义 NULL:CRTDBG.H、LOCALE.H、STDDEF.H、STDIO.H、STDLIB.H、STRING.H、TCHAR.H、TIME.H 和 WCHAR.H。NULL is defined in the following header files: CRTDBG.H, LOCALE.H, STDDEF.H, STDIO.H, STDLIB.H, STRING.H, TCHAR.H, TIME.H and WCHAR.H.

请参阅See Also

全局常量Global Constants