说明：  和声搜索算法，一种智能优化算法，国外学者编写的源码，可以运行，附带有测试函数和简要的算法介绍，供大家学习参考。
(Harmony search algorithm, a kind of intelligent optimization algorithm, foreign scholars write the source code, It can run smoothly with test function and algorithm is introduced briefly, consult for everybody to learn.)