本文着重描述了运用MATLAB命令将M文件翻译为C语言程序，并修改为可直接调用的C语言函数的方法，使用该方法所需要注意的方法局限性和MATLAB版本差异的影响。运用该方法将能够使C语言能直接使用MATLAB当中已经完成的数学计算功能，大大扩充了C语言的数学计算功能和开发效率。-This paper describes the use of MATLAB M ordered the translation of documents for the C Programming Language, and revised to directly call the C language function, use of the method needed to limitations of the method and MATLAB version of the impact of differences. Using this method will enable C language can be used directly MATLAB which has been completed arithmetic function, greatly expanded the C language arithmetic functions and development efficiency.