Python实现根据IP地址和子网掩码算出网段的方法

#!/usr/bin/env python#_*_encoding:utf-8_*_#Input your ip address and netmask to figure out your network .#申明：此脚本为交互式，默认情况下请执行python network.pyfrom IPy import IPinput_IP = raw_input('请输入ip地址:')list1 = input_IP.split('.')if len(list1) != 4:  print "您输入的ip地址不合法，请重新输入！"  exit()for i in list1:  if i.isdigit() == True and int(i) >=0 and int(i) <= 255:    pass  else:    print "您输入的ip地址不合法，请重新输入！"    exit()input_Netmask = raw_input('请输入子网掩码:')list2 = input_Netmask.split('.')if len(list2) != 4:  print "您输入的子网掩码不合法，请重新输入!"  exit()for i in list2:  if i.isdigit() == True and int(i) >=0 and int(i) <= 255:    pass  else:    print "您输入的子网掩码不合法，请重新输入!"    exit()print "您所在的网段为:%s" % (IP(input_IP).make_net(input_Netmask))