摘要：这个不是我发明的，只是拿来人脑运行一下，有点烧脑。 F == fac => x => x == 0 ? 1 : x * fac(x-1)Y == y=>f=>x=>f(y(y)(f))(x)Y(Y) == f=>x=>f(Y(Y)(f))(x)Y(Y)(F) == x=>F(Y(Y)(F))(x)Y 阅读全文