简介：

使用位移法将ip转为number型以及将number型转为ip，使用语言为python2.7

#!/usr/bin/env python

# coding:utf-8

def ip2num(ip):

    ip = [int(x) for x in ip.split('.')]

    return ip[0] << 24 | ip[1] << 16 | ip[2] << 8 | ip[3]

print ip2num('10.101.101.13') #174417165

def num2ip(num):

    return '%s.%s.%s.%s'%((num & 0xff000000) >> 24,(num & 0x00ff0000) >> 16, (num & 0x0000ff00) >> 8, num & 0x000000ff)

print str(num2ip(174417165)) #10.101.101.13

 

有关位移算法可参考 ：