枚举

xx.h 文件：
typedef enum
{
WorkState_working=0x01,
WorkState_sleeping,
}eWorkState_t;
extern eWorkState_t WorkState;
xx.c文件：
eWorkState_t WorkState;
使用：
WorkState=WorkState_working;

-----------------------------------------
xx.h 文件：
typedef enum
{
BAT_Discharging=0x01,
BAT_Charging = 0x03,
BAT_Complete = 0x07,
}eBatState;

typedef struct
{
eBatState egBatState;
uint16_t gBatVal;
uint8_t gBatPrecentage;
}sBat;
extern sBat sgBat;
xx.c文件：

sBat sgBat;