问枚举：它们可以在.h中执行还是必须保持在.cpp中？

enum
{
    kCP_AboutBox_IconViewID = 1,
    kCP_AboutBox_AppNameViewID = 2,
    kCP_AboutBox_VersionViewID = 3,
    kCP_AboutBox_DescriptionViewID = 4,
    kCP_AboutBox_CopyrightViewID = 5
};