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soratadori
V2EX  ›  Python

asyncio 可以指定协程的数量吗?

  •  
  •   soratadori · Jan 25, 2017 · 3179 views
    This topic created in 3384 days ago, the information mentioned may be changed or developed.
    举个例子,有一个列表[1,2,3,……,m]
    
    如何让他一次“同时”输出 n 个?
    
    比如
    1
    1
    1
    
    2
    2
    2
    
    3
    3
    3
    
    4
    4
    4
    
    5
    5
    5
    
    下面这个要输出几次,就创建几个实例的写法感觉太笨了,也不好维护,有没有灵活的方法?
    当然,这个例子有点傻,因为执行过的没必要再执行一次。实际情况应该是如何根据队列灵活的调整执行速度。
    
    import asyncio
    
    li = [1,2,3,4,5,6,7,8,9,10]
    
    def hello():
        for i in li:
            print(str(i)+"\n")
    
    async def main():
        loop = asyncio.get_event_loop()
        future1 = loop.run_in_executor(None, hello)
        future2 = loop.run_in_executor(None, hello)
        future3 = loop.run_in_executor(None, hello)
        await future1
        await future2
        await future3
    
    loop = asyncio.get_event_loop()
    loop.run_until_complete(main())
    
    Supplement 1  ·  Jan 25, 2017
    解决了...
    2 replies    2017-02-09 15:55:53 +08:00
    Septembers
        1
    Septembers  
       Jan 25, 2017 via iPhone
    令牌桶?
    Lemon23
        2
    Lemon23  
       Feb 9, 2017
    楼主后来怎么解决的?
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