协程简单实现代码

from gevent import monkey#导入不定模块
monkey.patch_all()#创建补丁
import gevent

import time
import requests

# 协程任务
def foo1():
    url='http://www.baidu.com'
    response=requests.get(url)
    print(response.url)

def foo2():
    url='http://www.google.com'
    try:
        response=requests.get(url,timeout=2)
        print(response.url)
    except:
        pass
def foo3():
    url='http://www.taobao.com'
    response=requests.get(url)
    print(response.url)

# 创建协程任务
g1=gevent.spawn(foo1)
g2=gevent.spawn(foo2)
g3=gevent.spawn(foo3)

# 等待所有协程任务运行结束,在继续执行
gevent.joinall([g1,g2,g3])

print('任务结束')