typedef struct
{
    uint8_t reg;        
    uint32_t data;
}COEFFICIENT_STRUCT;

typedef struct{
    uint8_t command;
    uint8_t param;
} cfg_reg;

typedef struct{
    uint8 Address;
    uint8 Top_data;
    uint8 Middle_data;
    uint8 Botton_data;
}RAM1_TAB;

typedef struct{
    BYTE Address;
    BYTE First_data;
    BYTE Top_data;
    BYTE Middle_data;
    BYTE Botton_data;
}RAM2_TAB;

上面四个结构体，会定义成结构体数组，现在每次选用不同的器件要打开相应宏定义，而且每增加一个器件又要增加宏定义、指针函数，很麻烦和不好看。
#define AMP_1
//#define AMP_2
//#define AMP_3
//#define AMP_4

#ifdef AMP_1
typedef int (*ampop_ctrl)( AmpList *pstAmpList, const COEFFICIENT_STRUCT *reg, int n);
#elif defined (AMP_2)
typedef int (*ampop_ctrl)( AmpList *pstAmpList, const cfg_reg *reg, int n);
#elif defined (AMP_3)
typedef int (*ampop_ctrl)( AmpList *pstAmpList, const RAM1_TAB *reg, int n);
#elif defined (AMP_4)
typedef int (*ampop_ctrl)( AmpList *pstAmpList, const RAM2_TAB *reg, int n);
#endif

我的需求是typedef int (*ampop_ctrl)( AmpList *pstAmpList, const RAM_TAB *reg, int n )不用定义多个，结构体也不用定义多个，看来只能做到前者，感谢回答