类class: >>> class Yh():def __init__(self,n=None):self.data = [1]if n!=None: self.data=Yh()*ndef __repr__(self):return f'{self.data}'def __mul__(self,n):self.data = [1]while n>1:n-=1self.data.append(0)self.data=[sum(z) for z in zip(self.data,self.data[:...