fibonacci
2019-11-20 本文已影响0人
BJ000
# nums = list()
#
# a = 0
# b = 1
#
# i = 0
# while i < 10:
# nums.append(a)
# a, b = b, a+b
# i += 1
#
# for num in nums:
# print (num)
#迭代器的方式
class Fibonacci(object):
def __init__(self,all_num):
self.all_num= all_num
self.current_num= 0
self.a= 0
self.b= 1
def __iter__(self):
return self
def __next__(self):
if self.current_num< self.all_num:
ret= self.a
self.a,self.b= self.b,self.a+self.b
self.current_num+= 1
return ret
else:
raise StopIteration
fibo= Fibonacci(10)
for numin fibo:
print (num)
