1 a, b = 0, 1
2 while b < 10:
3     print(b)
4     a, b = b, a+b

 1 import sys
 2 
 3 def fibonacci(n): # 生成器函数 - 斐波那契
 4     a, b, counter = 0, 1, 0
 5     while True:
 6         if (counter > n): 
 7             return
 8         yield a
 9         a, b = b, a + b
10         counter += 1
11 f = fibonacci(10) # f 是一个迭代器，由生成器返回生成
12 
13 while True:
14     try:
15         print (next(f), end="-")
16     except StopIteration:
17         sys.exit()