Python 网络编程

服务器端：
#!/usr/bin/python
#Filename: myserv.py
import struct
import socket
host = '192.168.1.50'
port = 8080
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.bind((host,port))
s.listen(1)
conn,addr = s.accept()
print 'Connected by',addr
while 1:
        data = conn.recv(1024)
        print len(data)
        if not data: break
        else:
          print data
          print struct.calcsize('icc')
          s = struct.unpack('iIQ7s', data)//实现批量发布
          #s = struct.unpack('icc', data)
          print 'Recv data:',s
          print s[0]
          print s[1]
          print s[2]
          print s[3]
conn.close()

客户端 ：
#!/usr/bin/python
#Filename: struct.py
import os
import struct
import socket
import time

host = "192.168.1.48"
port = 4002
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.connect((host,port))
ss = struct.pack('IIIII32s32s32s',0,96,0,0,0,'dongying','123456','1001')
#tt = struct.pack('sss','dongying','1234567','1001')
print ss
s.send(ss)
time.sleep(10)
s.close()
print 'Finish program'

struct -- Interpret strings as packed binary data。
批量发布时，对应的关系为：

Format	C Type	Python	Notes
x	pad byte	no value
c	char	string of length 1
b	signed char	integer
B	unsigned char	integer
h	short	integer
H	unsigned short	integer
i	int	integer
I	unsigned int	long
l	long	integer
L	unsigned long	long
q	long long	long	(1)
Q	unsigned long long	long	(1)
f	float	float
d	double	float
s	char[]	string
p	char[]	string
P	void *	integer