先找出一个基本可行解，对它进行鉴别，看是否是最优解；若不是，则按照一定法则转换到另一改进的基本可行解，再鉴别；若仍不是，则再转换，按此重复进行。-First find a basic feasible solution, authenticate it, see if it is the optimal solution If not, switch to another according to certain rules to improve the basic feasible solu