罚函数方法是求解约束（极小）优化问题的一类较好的算法。其基本思想：根据约束的特点构造某种惩罚函数，并把惩罚函数添加到目标函数上去，从而得到一个增广目标函数，使约束优化问题的求解转化为一系列无约束极小优化问题的求解。-Penalty function method for solving constrained (minimum) optimization problem of a class of better algorithms. The basic idea: In accordance with the characteristics of structure bound by a penalty function and penalty function to add up to the objective function in order to get an augmented objective function, so that the solution of constrained optimization problems into a series of unconstrained optimization problems to solve .