pythonのgevent同步非同步區別

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 1 #!/usr/bin/env python 2  3 from urllib import  request 4 import  gevent 5 from gevent import monkey 6 import time 7  8 monkey.patch_all() # 把當前程式所有的IO操作給我單獨的做上標記。 9 def f(url):10     resp = request.urlopen(url)11     data = resp.read()12     print(len(data))13 14 urls = ["https://www.python.org",15         "https://www.yahoo.com",16         "https://github.com"17         ]18 time_start = time.time()19 for url in urls:20     f(url)21 print("同步花費時間：",time.time()-time_start)22 23 asy_time = time.time()24 gevent.joinall({25     gevent.spawn(f,"https://www.python.org"),26     gevent.spawn(f,"https://www.yahoo.com"),27     gevent.spawn(f,"https://github.com"),28 })29 print("非同步花費時間：",time.time()-asy_time)

C:\Users\Administrator\AppData\Local\Programs\Python\Python37\python.exe D:/PythonStudy/charm/01/day10/爬蟲.py4882247981264096同步花費時間： 4.9252817630767824882264096477025非同步花費時間： 3.1961827278137207Process finished with exit code 0

 

pythonのgevent同步非同步區別