python获取本地ip，查资料代码如下，细节稍后做下分析

1: import socket,fcntl,struct

2: 

3: def GetIPAddress(ifname):

4:   skt = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

5:   #print skt

6:   pktString = fcntl.ioctl(skt.fileno(),0x8915, struct.pack('256s', ifname[:15]))

7:   #print pktString

8:   ipString = socket.inet_ntoa(pktString[20:24])

9:   #print ipString

10:   return ipString