基本遗传算法应用实例。用基本遗传算法求下面函数的最大值。F=x^3-60*x^2+900*x+100，0<=X<=30.个体数目去50，最大进化代数取100，离散精度去0.01，杂交概率取0.9.(Application examples of basic genetic algorithm. Apply the basic genetic algorithm to the maximum of the following functions. F=x^3-60*x^2+900*x+100, 0<=X<=30. number goes 50, maximum evolution algebra takes 100, discrete precision goes 0.01, crossover probability takes 0.9.)