这是另外几个测试函数，通过这个测试函数可以比较算法性能的优劣。-This is another test a few functions, through this test function can compare the algorithm performance is good or bad.

自己整理的用于智能优化的测试函数. 测试函数 带表达式表示方法说明-Intelligent optimization of its own for finishing the test function. Test function with a descr iption of the expression that