generetor1
#Author:Alex.Zhang # a=[i*2 for i in range(10)] # # print(a[3]) # s=[] # for i in range(100): # s.append(i*2) # print(s) #这就是定义generator的另一种方法。如果一个函数定义中包含yield关键字,那么这个函数就不再是一个普通函数,而是一个generator def fib(max): n, a, b = 0, 0, 1 while n < max: # print(b) 生成器的形成只需要把print变成yield yield ( b ) a, b = b, a + b n = n + 1 return 'done' f=fib(12) print(f)#<generator object fib at 0x000002416B110840> print(f.__next__()) print(f.__next__()) print(f.__next__()) print(f.__next__())