python实现 协程多任务图片下载器

 

 

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

import urllib.request import gevent from gevent import monkey monkey.patch_all()   def main():     urlList = ['http://10.194.116.146/CSSImg/hkjc_logo.png', 'http://10.194.109.125/Content/Swagger.png', 'http://10.194.109.125/favicon.ico']     fileNameList = ["4.png", "5.png", "6.png"]       ge = gevent.spawn(downloadImages, urlList, fileNameList)     ge.join()     def downloadImages(urlList, fileNameList):     i = 0     for value in urlList:         response_data = urllib.request.urlopen(value)         with open(fileNameList[i], "wb") as file:             while True:                 file_data = response_data.read(1024)                 if file_data:                     file.write(file_data)                 else:                     break         i += 1   if __name__ == '__main__':     main()