C language does not specify the number of bytes of memory occupied by all kinds of data, but only requires long data to be longer than int data and short data to be shorter than int data.

The type is determined by the computer system, and some are short and.

Ints are all 16 bits long.

It is 32 bits, some short ones are 16 bits, and both long and int are 32 bits, usually long.

Is 32 bits, short is 16 bits, and int can be 16 bits or 32 bits.