客户端代码：
# Filename: socketClient.pyimport socket
import sys
import threading# Client GUI
from tkinter import *
import Pmw# Create a TCP/IP socket
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# Connect the socket to the port where the server is listening
server_address = ('localhost', 10000)
print (sys.stderr, 'connecting to %s port %s' % server_address)
sock.connect(server_address)root = Tk()
# textDisplay
textDisplay = Pmw.ScrolledText(root)
textDisplay.pack(expand=1, padx=5, pady=5,side = LEFT)
# textInput
textInput = Pmw.ScrolledText(root)
textInput.pack(expand=1, padx=5, pady=5,side = LEFT)
# Send Button and its callback
def sendMsg(event):message = socket.gethostname()+':'+ textInput.get()#print (sys.stderr, 'sending "%s"' % message)print(message)sock.sendall(message.encode())textInput.clear()#data = sock.recv(100)#textDisplay.insert(END, data)#print (sys.stderr, 'received "%s"' % data)sendBtn = Button(root, text="Send")
sendBtn.bind('<Button-1>', sendMsg)
sendBtn.pack(side = LEFT)def receiveMsg():while True:data = sock.recv(100)print (sys.stderr, 'client received "%s"' % data)textDisplay.insert(END, data)receiveThread = threading.Thread(name='waitForMSG', target=receiveMsg)
receiveThread.start()root.mainloop()服务器端代码：
# Filename: socketServer.pyimport socket
import sys# Create a TCP/IP socket
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)# Bind the socket to the port
server_address = ('localhost', 10000)
print (sys.stderr, 'starting up on %s port %s' % server_address)
sock.bind(server_address)# Listen for incoming connections
sock.listen(1)while True:# Wait for a connectionprint (sys.stderr, 'waiting for a connection')connection, client_address = sock.accept()try:print (sys.stderr, 'connection from', client_address)# Receive the data in small chunks and retransmit itwhile True:data = connection.recv(16)print (sys.stderr, 'received "%s"' % data)if data:print (sys.stderr, 'sending data back to the client')connection.sendall(data)else:print (sys.stderr, 'no data from', client_address)breakfinally:# Clean up the connectionconnection.close() 客户端在监听服务器的消息采用了多线程的方法。