【C/C++基础】C语言数据类型表

C语言数据类型表

关键字	位长(字节)	范围	格式化字符串
char	1 bytes	-128…127（或0…255，与体系结构相关）	%c
unsigned char	1bytes	0…255	%c, %hhu
signed char	1bytes	-128…127	%c, %hhd, %hhi
int	2bytes(16位系统) 或 4bytes	-32768…32767 或 -2147483648…2147483647	%i, %d
unsigned int	2bytes 或 4 bytes	0…65535 或 0…4294967295	%u
signed int	2bytes 或 4bytes	-32768…32767 或 -2147483648…2147483647	%i, %d
short int	2bytes	-32768…32767	%hi, %hd
unsigned short	2 bytes	0…65535	%hu
signed short	2bytes	-32768…32767	%hi, %hd
long int	4bytes 或 8bytes[6]	-2147483648…2147483647 或 -9223372036854775808…9223372036854775807	%li, %ld
unsigned long	4bytes 或 8 bytes	0…4294967295 或 0…18446744073709551615	%lu
signed long	4 bytes或 8bytes	-2147483648…2147483647 或 -9223372036854775808…9223372036854775807	%li, %ld
long long	8bytes	-9223372036854775808…9223372036854775807	%lli, %lld
unsigned long long	8bytes	0…18446744073709551615	%llu
float	4bytes	2.939x10−38…3.403x10+38 (7 sf)	%f, %e, %g
double	8bytes	5.563x10−309…1.798x10+308 (15 sf)	%lf, %e, %g
long double	10bytes或 16bytes	7.065x10-9865…1.415x109864 (18 sf或33 sf)	%lf, %le, %lg