C语言是一种面向过程的计算机程序设计语言。最初为unix而生。它既有高级语言的特点，又具有汇编语言的特点。它可以作为系统设计语言，编写工作系统应用程序，也可以作为应用程序设计语言，编写不依赖计算机硬件的应用程序。因此，它的应用范围广泛。

-C language is a process-oriented computer programming language. Initially designed for unix and Health. It has both the characteristics of high-level language, but also has the characteristics of assembly language. It acts as a system design language, the preparation of system applications, but also can be used as the application of programming languages, computer hardware do not rely on the preparation of applications. Therefore, a wide range of its application.