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python将ip地址转换成整数的方法

Jun 10, 2016 pm 03:17 PM

IP address python integer method Convert

本文实例讲述了python将ip地址转换成整数的方法。分享给大家供大家参考。具体分析如下：

有时候我们用数据库存储ip地址时可以将ip地址转换成整数存储，整数占用空间小，索引也会比较方便，下面的python代码自定义了一个ip转换成整数的函数，非常简单，代码同时还提供了整数转换成ip地址的方法。

import socket, struct
def ip2long(ip):
  """
  Convert an IP string to long
  """
  packedIP = socket.inet_aton(ip)
  return struct.unpack("!L", packedIP)[0]

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例如 www.jb51.net的ip地址为：61.129.51.27，调用上面的ip2long转换函数：

print('www.jb51.net ip address is %s'%ip2long('61.129.51.27'))

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输出结果为：

www.jb51.net ip address is 1031877403

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如果要将整数转换成ip地址，可以使用下面的方法：

socket.inet_ntoa(struct.pack('!L', 2130706433))

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输出结果为：

'127.0.0.1'

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希望本文所述对大家的Python程序设计有所帮助。

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