协程代码1
#!/usr/bin/env python # -*- coding;utf-8 -*- # 导入协程模块 """ 协程工作原理 """ import greenlet from greenlet import greenlet def text1(): print(12) gr2.switch() print(56) gr2.switch() def text2(): print(34) gr1.switch() print(78) gr1 = greenlet(text1) gr2 = greenlet(text2) gr1.switch()
协程代码2
#!/usr/bin/env python # -*- coding;utf-8 -*- """ 使用协程模块gevent自动切换线程,注意调入模块的方式: from gevent import monkey;monkey.patch_all() """ import time from gevent import monkey;monkey.patch_all() import gevent import requests def f(url): print("Get: %s" % url) ret = requests.get(url) date = ret.text print(len(date)) links = [] with open("G:/python/urls.txt", "r") as url: for i in url: links.append(gevent.spawn(f, i)) gevent.joinall(links)