这篇文章是copy的，我自己写的不能把每个人发送的数据在别人的屏幕上显示！先把他的保存在我这里看下！

1 #!/usr/bin/env python 2 #coding:utf-8 3  4 import socket 5 import sys 6 import threading 7   8 con = threading.Condition() 9 HOST = raw_input("input the server's ip adrress: ") # Symbolic name meaning all available interfaces10 PORT = 8888 # Arbitrary non-privileged port11 data = ''12  13 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)14 print 'Socket created'15 s.bind((HOST, PORT))16 s.listen(10)17 print 'Socket now listening'18  19 #Function for handling connections. This will be used to create threads20 def clientThreadIn(conn, nick):21     global data22 #infinite loop so that function do not terminate and thread do not end.23     while True:24     #Receiving from client25         try:26             temp = conn.recv(1024)27             if not temp:28                 conn.close()29                 return30             NotifyAll(temp)31             print data32         except:33             NotifyAll(nick + " leaves the room!")34             print data35             return36  37     #came out of loop38  39 def NotifyAll(sss):40     global data41     if con.acquire():42         data = sss43         con.notifyAll()44         con.release()45   46 def ClientThreadOut(conn, nick):47     global data48     while True:49         if con.acquire():50             con.wait()51             if data:52                 try:53                     conn.send(data)54                     con.release()55                 except:56                     con.release()57                     return58                      59  60 while 1:61     #wait to accept a connection - blocking call62     conn, addr = s.accept()63     print 'Connected with ' + addr[0] + ':' + str(addr[1])64     nick = conn.recv(1024)65      #send only takes string66     #start new thread takes 1st argument as a function name to be run, second is the tuple of arguments to the function.67     NotifyAll('Welcome ' + nick + ' to the room!')68     print data69     print str((threading.activeCount() + 1) / 2) + ' person(s)!'70     conn.send(data)71     threading.Thread(target = clientThreadIn , args = (conn, nick)).start()72     threading.Thread(target = ClientThreadOut , args = (conn, nick)).start()73  74 s.close()

下面的是客户端代码：

1 #!/usr/bin/env python 2 #coding:utf-8 3  4 import socket 5 import threading 6   7   8 inString = '' 9 outString = ''10 nick = ''11  12 def DealOut(s):13     global nick, outString14     while True:15         outString = raw_input()16         outString = nick + ': ' + outString17         s.send(outString)18  19 def DealIn(s):20     global inString21     while True:22         try:23             inString = s.recv(1024)24             if not inString:25                 break26             if outString != inString:27                 print inString28         except:29             break30          31  32 nick = raw_input("input your nickname: ")33 ip = raw_input("input the server's ip adrress: ")34 sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)35 sock.connect((ip, 8888))36 sock.send(nick)37  38 thin = threading.Thread(target = DealIn, args = (sock,))39 thin.start()40 thout = threading.Thread(target = DealOut, args = (sock,))41 thout.start()42  43 #sock.close()