本程序采用matlab编写。程序加载由用户提供的前处理数据，包括网格数据和载荷数据。采用直接的数值运算和matlab符号运算两种方法（可选择）生成单元刚度矩阵。自动集成结构刚度矩阵，选用直接解法求解线性方程组，解出节点位移。后处理过程中，程序计算了节点应力值，对于共享节点的应力程序采用各个单元计算值的平均，程序同时给出了单元最佳应力点的应力值！(This program is written in matlab. The program loads pre-processing data provided by users, including grid data and load data. The element stiffness matrix is generated by two methods, direct numerical operation and MATLAB symbolic operation. The stiffness matrix of the structure is automatically integrated, and the direct solution method is used to solve the linear equations and the node displacement is solved. In the post-processing process, the program calculates the stress value of the joint. For the stress program of the shared joint, the average of the calculated value of each element is used. At the same time, the program gives the stress value of the optimum stress point of the element.)