一、变量所占字节数
signed char:1字节
short int:2字节
int:4字节
long int:4字节
long long int:8字节
unsigned char:1字节
unsigned short int 或 unsigned short:2字节
unsignd int:4字节
unsigned long int 或 unsigned long:4字节
unsigned long long:8字节
变量字节数详解
signed char:1字节
short int:2字节
int:4字节
long int:4字节
long long int:8字节
unsigned char:1字节
unsigned short int 或 unsigned short:2字节
unsignd int:4字节
unsigned long int 或 unsigned long:4字节
unsigned long long:8字节

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