目标函数F(s)=21.5+x1*sin(4*pi*x1)+x2*sin(20*pi*x2),运用遗传算法求取函数的最值，课程作业，自己原创。-The objective function F (s) = 21.5+ x1* sin (4* pi* x1)+ x2* sin (20* pi* x2), the use of genetic algorithms to strike the most valued function, course work, their own originality.