Hello大家好，今天说一下python的socket编程，

首先，实验环境：

一个云服务器（我们这里是用的阿里云，大家将就自己的条件吧）；

类Unix操作系统（如Mac OS，Linux等）；

Windows系列操作系统。

在这里，我使用的是阿里云，Mac OSX，Windows XP（在mac上的一个虚拟机）。

Server.py

# -*- coding: utf-8 -*-
#!/usr/local/bin/python

import socket
import sys
import threading

con = threading.Condition()
HOST = "云空间的IP地址"
PORT = 端口	
data = ''

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print 'Socket created'
s.bind((HOST, PORT))
s.listen(10)
print 'Socket now listening'

def clientThreadIn(conn, nick):#开辟线程
    global data
    while True:#接受客户端数据
        try:
            temp = conn.recv(1024)
            if not temp:
                conn.close()#连接关闭
                return
            NotifyAll(temp)
            print data
        except:
            NotifyAll(nick + " leaves the room!")
            print data
            return


def NotifyAll(sss):#广播
    global data
    if con.acquire():
        data = sss
        con.notifyAll()
        con.release()
 
def ClientThreadOut(conn, nick):#客户端输出
    global data
    while True:
        if con.acquire():
            con.wait()
            if data:
                try:
                    conn.send(data)
                    con.release()
                except:
                    con.release()
                    return
                    

while 1:
    conn, addr = s.accept()
    print 'Connected with ' + addr[0] + ':' + str(addr[1])
    nick = conn.recv(1024)
    NotifyAll('Welcome ' + nick + ' to the room!')
    print data
    print str((threading.activeCount() + 1) / 2) + ' person(s)!'
    conn.send(data)
    threading.Thread(target = clientThreadIn , args = (conn, nick)).start()#开辟线程
    threading.Thread(target = ClientThreadOut , args = (conn, nick)).start()

s.close()

Client.py

# -*- coding: utf-8 -*-

import socket
import threading
import getpass

inString = ''
outString = ''
nick = ''

def DealOut(s):
    computername=socket.gethostname()#获取计算机名
    global nick, outString
    while True:
        outString = raw_input(nick+":")
        outString = nick + "@" + computername + ': ' + outString
        s.send(outString)

def DealIn(s):
    global inString
    while True:
        try:
            inString = s.recv(1024)
            if not inString:
                break
            if outString != inString:
                print inString
        except:
            break
        

nick = getpass.getuser()#获取操作系统用户名
ip = "云空间IP地址"
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((ip, 端口))
sock.send(nick)

thin = threading.Thread(target = DealIn, args = (sock,))#开辟一个读入的线程
thin.start()
thout = threading.Thread(target = DealOut, args = (sock,))#开辟一个写出的线程
thout.start()

将server.py上传云端，运行，如图：

将client.py在mac系统上运行，如图：

将client.py在WindowsXP虚拟机上运行，如图：

OK，这就可以了，一个基于python的socket通信的文本框网络聊天室就写好了。