做项目遇到个问题，结果发现是数据类型的问题。非常生气！！！因为这么小的错误耽误了我很长很长时间。故一气之下把这个在MDK里面整合放在这里，以便警示！！！！

给自己的话：基础啊！！功底啊！！
 

【最常用】！！！！！
 

/*无符号u*/
u8----uint8_t------unsigned short char
u16---uint16_t-----unsigned short int
u32---uint32_t-----unsigned int



/*有符号s*/
s8-----int8_t-----signed char
s16----int16_t----signed short int
s32----int32_t----signed int

【下为字典，遇到了直接在下面查！！！！！！】

【常用】

/************************
stm32f10x.h
************************/

typedef int32_t  s32;
typedef int16_t s16;
typedef int8_t  s8;

typedef uint32_t  u32;
typedef uint16_t u16;
typedef uint8_t  u8;

【全部】

/*!< STM32F10x Standard Peripheral Library old types (maintained for legacy purpose) */
typedef int32_t  s32;
typedef int16_t s16;
typedef int8_t  s8;
typedef const int32_t sc32;  /*!< Read Only */
typedef const int16_t sc16;  /*!< Read Only */
typedef const int8_t sc8;   /*!< Read Only */

typedef __IO int32_t  vs32;
typedef __IO int16_t  vs16;
typedef __IO int8_t   vs8;

typedef __I int32_t vsc32;  /*!< Read Only */
typedef __I int16_t vsc16;  /*!< Read Only */
typedef __I int8_t vsc8;   /*!< Read Only */

typedef uint32_t  u32;
typedef uint16_t u16;
typedef uint8_t  u8;

typedef const uint32_t uc32;  /*!< Read Only */
typedef const uint16_t uc16;  /*!< Read Only */
typedef const uint8_t uc8;   /*!< Read Only */

typedef __IO uint32_t  vu32;
typedef __IO uint16_t vu16;
typedef __IO uint8_t  vu8;

typedef __I uint32_t vuc32;  /*!< Read Only */
typedef __I uint16_t vuc16;  /*!< Read Only */
typedef __I uint8_t vuc8;   /*!< Read Only */

//#######################################################################

【常用】

/* exact-width signed integer types */
typedef   signed          char int8_t;
typedef   signed short     int int16_t;
typedef   signed           int int32_t;
typedef   signed       __INT64 int64_t;

/* exact-width unsigned integer types */
typedef unsigned          char uint8_t;
typedef unsigned short     int uint16_t;
typedef unsigned           int uint32_t;
typedef unsigned       __INT64 uint64_t;

【准常用】

/* smallest type of at least n bits */
/* minimum-width signed integer types */
typedef   signed          char int_least8_t;
typedef   signed short     int int_least16_t;
typedef   signed           int int_least32_t;
typedef   signed       __INT64 int_least64_t;

/* minimum-width unsigned integer types */
typedef unsigned          char uint_least8_t;
typedef unsigned short     int uint_least16_t;
typedef unsigned           int uint_least32_t;
typedef unsigned       __INT64 uint_least64_t;

/* fastest minimum-width signed integer types */
typedef   signed           int int_fast8_t;
typedef   signed           int int_fast16_t;
typedef   signed           int int_fast32_t;
typedef   signed       __INT64 int_fast64_t;

/* fastest minimum-width unsigned integer types */
typedef unsigned           int uint_fast8_t;
typedef unsigned           int uint_fast16_t;
typedef unsigned           int uint_fast32_t;
typedef unsigned       __INT64 uint_fast64_t;

【全部】

在stdint.h里