线性规划中的单纯形法，单纯形法是求解线性规划的最主要方法，程序首先确定初始可行解，如没有找到，则引入人工变量或松弛变量来求解-Of linear programming simplex method, simplex method for solving linear programming are the most important methods, procedures to determine first of all, the initial feasible solution, su