本文实例讲述了Python实现快速多线程ping的方法。分享给大家供大家参考。具体如下：

#!/usr/bin/python
#_*_coding:utf-8_*_
#
\'\'\'
名称：快速多线程ping程序
开发：gyhong gyh9711
日期：20:51 2011-04-25
\'\'\'
import pexpect
import datetime
from threading import Thread
host=[\"192.168.1.1\",\"192.168.1.123\",\"192.168.2.1\",
\"192.168.1.1\",\"192.168.1.123\",\"192.168.2.1\",
\"192.168.1.1\",\"192.168.1.123\",\"192.168.2.1\",
\"192.168.1.1\",\"192.168.1.123\",\"192.168.2.1\",
\"192.168.1.1\"]
report_ok=[]
report_error=[]
class PING(Thread):
  def __init__(self,ip):
    Thread.__init__(self)
    self.ip=ip
  def run(self):
    Curtime = datetime.datetime.now()  
    #Scrtime = Curtime + datetime.timedelta(0,minute,0) 
    #print(\"[%s]主机[%s]\" % (Curtime,self.ip))
    ping=pexpect.spawn(\"ping -c1 %s\" % (self.ip))
    check=ping.expect([pexpect.TIMEOUT,\"1 packets transmitted, 1 received, 0% packet loss\"],2)
    if check == 0:
      print(\"[%s] 超时 %s\" % (Curtime,self.ip))
    elif check == 1:
      print (\"[%s] %s 可达\" % (Curtime,self.ip))
    else:
      print(\"[%s] 主机%s 不可达\" % (Curtime,self.ip))
#多线程同时执行
T_thread=[]
for i in host:
  t=PING(i)
  T_thread.append(t)
for i in range(len(T_thread)):
  T_thread[i].start()
#
#print (\"\\n=========问题主机情况如下==========\\n\")
#output(report_error)
#print (\"\\n=========正常主机情况如下==========\\n\")
#output(report_ok)

执行结果：

administrator@nagios:/win/pexpect$ ./ping.py
[2011-04-25 21:30:22.126981] 192.168.1.1 可达
[2011-04-25 21:30:22.148376] 192.168.1.1 可达
[2011-04-25 21:30:22.179846] 192.168.1.1 可达
[2011-04-25 21:30:22.203691] 192.168.1.1 可达
[2011-04-25 21:30:22.227696] 192.168.2.1 可达
[2011-04-25 21:30:22.134049] 超时 192.168.1.123
[2011-04-25 21:30:22.145610] 超时 192.168.2.1
[2011-04-25 21:30:22.157558] 超时 192.168.1.123
[2011-04-25 21:30:22.167898] 超时 192.168.2.1
[2011-04-25 21:30:22.197572] 超时 192.168.1.123
[2011-04-25 21:30:22.202430] 超时 192.168.2.1
[2011-04-25 21:30:22.215561] 超时 192.168.1.123
[2011-04-25 21:30:22.229952] 超时 192.168.1.1

希望本文所述对大家的Python程序设计有所帮助。