Integer constants are integer constants. In C language, integer constants can usually be expressed in the following three forms: decimal integer, hexadecimal integer and octal integer.

The basic type of integer variables is int, which is divided into basic integer int, short integer short int, long integer long int and unsigned basic integer short int, unsigned short integer short int and unsigned long integer.

C language: C language is a general computer programming language, which is widely used. The design goal of C language is to provide a programming language that can compile and process low-level memory in a simple way, generate a small amount of machine code and run without any support of running environment.