C language is a computer programming language, which has the characteristics of both high-level language and assembly language.

It can be used as a working system design language to write system applications, and it can also be used as an application programming language to write applications that do not depend on computer hardware.

Therefore, it has a wide range of applications, not only for software development, but also for various scientific research, such as single chip microcomputer and embedded system development.

Language features: C is an intermediate language /C is a structured language /C is fully functional /C is widely used/concise and compact, flexible and convenient/rich operators/rich data types /C is a structured language/grammar is not strict, programming is free/widely used, and portability is good.