python调用系统命令ping

 #! /usr/bin/env python

#coding=utf-8

#############

import subprocess

import time

import os

ks=int(time.time()) #记录开始时间

ip="192.168.2."

#############

def subping():

    num1=num2=0

    for i in range(1,10):

        ips=ip+str(i)   

        ret=subprocess.call("ping -n 1 -w 1 %s " % ips)

        if ret == 0:

           print (ips,"+++++++++++++Online ")

           num1=num1+1

        else:

           # print (ips,"-------------Offline")

            num2=num2+1

    js=int(time.time())  #记录结束时间

    print("time（秒）:",js-ks,"s")  #打印并计算用的时间，s秒

    print("ON_line:",num1,"    OFF_line:",num2)

def osping():

    return1=os.system('ping -n 2 -w 1 8.8.8.8')

    if return1:

        print 'ping os ping fail'

    else:

        print 'ping os ping ok'

osping()

subping()