用于求解平面结构问题，程序采用二维等带宽存储整体刚度矩阵，乘大数法引入约束，等带宽高斯消去法求解位移。-Planar structure for solving the problem, the program uses a two-dimensional, such as bandwidth storage overall stiffness matrix multiplication of large numbers Law introduces constraints, such as Gaussian elimination method to solve the bandwidth of displacement