typedef unsigned int INT16U; void delay(INT8U delay_time) // 延时函数 { INT8U n; INT16U m; for (n=0;n《delay_time;n++) { for(m=0;m《10000;m++); } } void initiate_RS232(void) //串口初始化 { ES = 0; // 禁止串口中断 SCON = 0x50; // 0101,0000 8 位数据位, 无奇...
typedef unsigned long int uint32; /* Unsigned 32 bit value */ typedef unsigned short uint16; /* Unsigned 16 bit value */ typedef unsigned char uint8; /* Unsigned 8 bit value */ typedef signed long int int32; /* Signed 32 bit value */ typedef signed short int16; /* Signed 16 bit...
typedef unsigned int uint32_t;//声明一个uint32_t是signed int类型,占4个字节 typedef unsigned __INT64 uint64_t;//声明一个uint64_t是signed __INT64类型,占8个字节 typedef signed char int8_t;//声明一个int8_t是signed char类型,占1个字节 typedef signed short int int16_t;//声明一个int16_...
继续找到 typedef unsigned int __u32;typedef unsigned char __u8; 替代位置名称 typedef unsigned int (*func)(void); 现在只有func属于未知。 b).第二步.未知名字为定义类型,类型为取出名称和typedef的所有部分,如上为 func等价于unsigned unsigned int (*)(unsigned char); c).第三部.定义一个变量时,变...
return 0; } 同样可以用第三种方法来定义来隐藏指针 typedef char* pstr; 当然也可以用来定义函数 typedef int GUI_GET_DATA_FUNC(void * p, const U8 ** ppData, unsigned NumBytes, U32 Off); 这只是我个人的理解,如果有错误欢迎指正错误。
24#ifndef u_int64_t 25typedef unsigned _int64 u_int64_t ; 26#endif 27 28#endif /* _TYPES_H_ */ Analysis ▪ At line 12, anifndefpre-compiler directive is used to determine if theu_int8_tdata type has been declared. If it has not, theunsigned chardata type istypedef’dasu_int...
typedef struct{ElemType data[MAXSIZE];// 用数组存储顺序表中的元素unsigned int length;// 顺序表中元素的个数}SeqList,*PSeqList;//这个就是定义两个类型,一个是结构体别名SeqList和一个结构体指针PSeqList。 3.为数组定义简洁的类型名称 代码语言:javascript...
3 typedef int Integer; 4 typedef unsigned int UInterger; 5 6 typedef float Float; 7 8 int main(int argc, const char * argv[]) { 9 Integer i = -10; 10 UInterger ui = 11; 11 12 Float f = 12.39f; 13 14 printf("%d %d %.2f", i, ui, f); ...
8 int main(int argc, const char * argv[]) { 9 Integer i = -10; 10 UInterger ui = 11; 11 12 Float f = 12.39f; 13 14 printf("%d %d %.2f", i, ui, f); 15 16 return 0; 17 } 在第3、第4、第6行分别给int、unsigned int、float起了个别名,然后在main函数中使用别名定义变量,...
typedef char * PCHAR; int main (void) { //char * str = "学嵌入式"; PCHAR str =...