windows下用python实现ping

# -*- coding:utf8 -*-
#!/usr/bin/python
import subprocess    
import re

class LinkState(object):
    def __init__(self,ip):
        self.ip = ip
        self.getLinkState(self.ip)

    # 获取链路状态
    def getLinkState(self,ip):
        #运行ping程序
        p = subprocess.Popen(["ping.exe", ip], 
             stdin = subprocess.PIPE, 
             stdout = subprocess.PIPE, 
             stderr = subprocess.PIPE, 
             shell = True)  

        #得到ping的结果
        out = p.stdout.read()  
        # print out

        #找出丢包率，这里通过‘%’匹配
        regex = re.compile(r‘\w*%\w*‘)
        packetLossRateList = regex.findall(out)
        self.packetLossRate = packetLossRateList[0]

        #找出往返时间，这里通过‘ms’匹配
        regex = re.compile(r‘\w*ms‘)
        timeList = regex.findall(out)
        self.minTime = timeList[-3]
        self.maxTime = timeList[-2]
        self.averageTime = timeList[-1]

        self.showResult()

    #输出结果    
    def showResult(self):
        result = {‘packetLossRate‘:self.packetLossRate,‘minTime‘:self.minTime,‘maxTime‘:self.maxTime,‘averageTime‘:self.averageTime}
        print result

if __name__ == ‘__main__‘:
    ip = ‘baidu.com‘    #要ping的主机
    LinkState(ip)