se_Gauss_Jordan()函数教学函数。高斯-约当消去法，用全主元高斯-约当法消去法同时求解系数矩阵相同而常数向量不同的m个n阶线性方程组AX = B，其中A=array((0.2368,0.2471,0.2568,1.2671),(0.1968,0.2071,1.2168,0.2271),(0.1581,1.1675,0.1768,0.1871), (1.1161,0.1254,0.1397,0.1490))，B=array((1.8471),(1.7471),(1.6471),(1.5471))。