python里的asyncio.sleep和time.sleep区别 

 1 import asyncio
 2 import time
 3 
 4 
 5 async def get_html(url):
 6     print('start get url')
 7     # time.sleep(2)  # 同步阻塞，会阻塞整个脚本
 8     await asyncio.sleep(2)  # asyncio.sleep是非阻塞，await后面必须是一个awaitable对象
 9     print('end get url')
10 
11 
12 if __name__ == '__main__':
13     start_time=time.time()
14     loop=asyncio.get_event_loop()
15     tasks=[get_html('www.baidu.com') for i in range(10)]
16     loop.run_until_complete(asyncio.wait(tasks))# 阻塞
17     print(time.time()-start_time)

 

posted on 2022-01-11 11:38  Shine-Zhong  阅读(2305)  评论(0)  编辑  收藏  举报

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