Socket server and client written in Python

Server:

#! /Usr/bin/python

Import socket

Host = '2017. 0.0.1'

Port = 8123

S = socket. socket (socket. AF_INET, socket. SOCK_STREAM)

S. bind (host, port ))

S. listen (2)

Try:

While True:

Conn, add = s. accept ()

While True:

Data2 =''

Data1 = conn. recv (3)

If data1 = 'eof ':

Conn. send ('Hello clietn1 ')

Break

If data1 = 'foe ':

Conn. send ('Hello client2 ')

Break

Data2 + = data1

Print data2

Except t KeyboardInterrupt:

Print "you have CTRL + C, Now quit"

S. close ()

Note: The server receives only three bytes of data at a time. I keep reading data in a loop and accumulate it into data2. when reading the EOF, I quit printing data2, when reading FOE, exit and print data2. EOF and FOE are the Terminator sent when the client sends the data.) When CTRLC + C is received, close the socket.

Client 1:

#! /Usr/bin/env python

Import socket

Import OS

Ss = socket. socket (socket. AF_INET, socket. SOCK_STREAM)

Ss. connect ('2017. 0.0.1 ', 127 ))

# F = open ('A', 'wb ')

Ss. sendall ('Hello ~~dddddddddddddddddddddddddddddd ')

OS. system ('sleep 1 ')

Ss. send ('eof ')

Data = ss. recv (1024)

Print "server dafu % s" % data

Ss. close ()

Client 2:

#! /Usr/bin/env python

Import socket

Import OS

Ss = socket. socket (socket. AF_INET, socket. SOCK_STREAM)

Ss. connect ('2017. 0.0.1 ', 127 ))

# F = open ('A', 'wb ')

Ss. sendall ('wokao sile ')

OS. system ('sleep 1 ')

Ss. send ('foe ')

Data = ss. recv (1024)

Print "server dafu % s" % data

Ss. close ()

This article from the "linux open source-continuous summary..." blog, please be sure to keep this source http://fantefei.blog.51cto.com/2229719/1274582