说明：  超松弛法求解线性方程组的C语言程序，程序运行效率高，注释很详细，是求解线性方程组的利器。可高速运行在单片机里面。
(Overrelaxation method for solving linear equations C language program, the program is running high efficiency, very detailed notes, is a tool for solving linear equations. High-speed running on the microcontroller inside.)