Long integer: 4 bytes.

Single precision floating point number: 4 bytes.

Double precision floating point number: 8 bytes.

Character type: 1 byte.

Example:

int a； //basic integer

long int b； //Long integer

char c； //Character type

Floating d; //Single precision floating-point type

Double e; //Double precision floating-point type

char s[20]； //Character array or string type