C语言编写，列主元高斯法求解线性方程组代码，方程组系数以文本形式导入程序，可计算多阶方程，识别运算时间，算法时间复杂度较低。(C language, column principal component Gauss method for solving linear equations, code equations, coefficients in text form into the program, can calculate multiple equations, identify the operation time, algorithm time complexity is low.)