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rogwan
V2EX  ›  Python

yield from 有什么最佳的使用场景吗?

  •  
  •   rogwan · Jul 31, 2017 via Android · 2643 views
    This topic created in 3233 days ago, the information mentioned may be changed or developed.
    yield from iterable means for item in iterable: yield item
    8 replies    2017-08-01 14:20:46 +08:00
    est
        1
    est  
       Jul 31, 2017
    chain iterable
    lxml
        2
    lxml  
       Jul 31, 2017
    yield from 个人用的不多,但他的近亲 await 则很常用。
    CryMeatel
        3
    CryMeatel  
       Jul 31, 2017
    asyncio 模块常用
    slideclick
        4
    slideclick  
       Aug 1, 2017
    describe your question in English then search it via Google you will get best answer.
    NoAnyLove
        5
    NoAnyLove  
       Aug 1, 2017
    4 楼正解
    brucedone
        6
    brucedone  
       Aug 1, 2017
    转移控制权给子生成器,简单来说是打开一个双向通首,把最外层的调用方和最内层的子生器连接起来,这样二者就可以直接发送和产出值,使用 yield from 的块可以称为委派生成器
    junnplus
        7
    junnplus  
       Aug 1, 2017
    @brucedone 这段话好熟悉😂。。。
    brucedone
        8
    brucedone  
       Aug 1, 2017
    @junnplus 《流畅的 python 》,好书啊,例子也写的够详细
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