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  • python基础一 day13 生成器

    #生成器函数
    # def generator():
    # print(1)
    # return 'a'
    #
    # ret = generator()
    # print(ret)

    #只要含有yield关键字的函数都是生成器函数
    # yield不能和return共用且需要写在函数内
    # def generator():
    # print(1)
    # yield 'a'
    # #生成器函数 : 执行之后会得到一个生成器作为返回值
    # ret = generator()
    # print(ret)
    # print(ret.__next__())

    # def generator():
    # print(1)
    # yield 'a'
    # print(2)
    # yield 'b'
    # yield 'c'
    # g = generator()
    # for i in g:
    # print(i)
    # ret = g.__next__()
    # print(ret)
    # ret = g.__next__()
    # print(ret)
    # ret = g.__next__()
    # print(ret)

    #娃哈哈%i
    def wahaha():
    for i in range(2000000):
    yield '娃哈哈%s'%i
    # g = wahaha()
    # g1 = wahaha()
    # print(g.__next__())
    # print(g1.__next__())

    # g = wahaha()
    # count = 0
    # for i in g:
    # count +=1
    # print(i)
    # if count > 50:
    # break
    # # print('*******',g.__next__())
    # for i in g:
    # count +=1
    # print(i)
    # if count > 100:
    # break
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  • 原文地址:https://www.cnblogs.com/wang-tan/p/11062323.html
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