Guass-Seidel计算方法，把.c 文件放入codeblocks环境下，c.txt放在同一项目下，读取文件c.txt可以直接读取数据，运行直接得出结果。-Guass-Seidel calculation method, the c file into codeblocks environment, c.txt on the same project, read file c.txt can read data directly, run directly to the outcome.