python 定时任务去检测服务器端口是否通的实例

如下所示：

import socket
import threading
import time

def testconn( host , port ):
 sk = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 sk.settimeout(1)
 try:
   sk.connect((host,port))
   return host+" Server is "+str(port)+" connect"
 except Exception:
   return host+" Server is "+str(port)+" not connect!"
 sk.close()

class Test(threading.Thread):
 def __init__(self):
   pass
 def test(self):
   print testconn('172.31.32.3',22)
 def run(self):
   while True:
     #print time.strftime('％Y-％m-％d ％H:％M:％S')
     self.test()
     time.sleep(1)
a=Test()
a.run()

来源：https://blog.csdn.net/ywmack/article/details/52788766