Introduction - If you have any usage issues, please Google them yourself
Natural variables has two yuan function F (m, n) = f (m)+ g (n), where f (m) = f (m-1)* m, m> 1 1, m = 1 g (n) = g (n-1)+g (n-2), n> 2 1, n = 1,2 please collaborative program established three concurrent processes or threads, which are to complete the calculation F (m, n) , f (m) and g (n).