用遗传算法解一个函数优化问题的程序，目标函数和约束条件可以改动!-Genetic Algorithm for a function optimization problem with the objective function and constraints can be changed!

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

系统优化算法设计与实现—用惩罚函数发（外点法）解带等式约束的非线性规划-Algorithm design and system optimization- with the penalty function hair (external point method) Solutions for Nonlinear Programming with Equality Constraints