生成器(Generators) 是更簡(jiǎn)單創(chuàng)建迭代器的方法.通過(guò) yield 關(guān)鍵字實(shí)現(xiàn)

>>> def my_generator():
        print("Inside my generator")
        yield 'a'
        yield 'b'
        yield 'c'

>>> for i in my_generator():
        print(i, end='  ')
Inside my generator
a b c