Python半双工聊天

半双工聊天

半双工聊天。创建一个简单的半双工聊天程序。指定半双工,我们的意思就是,当建
立一个连接且服务开始后,只有一个人能打字,而另一个参与者在得到输入消息提示
之前必须等待消息。并且,一旦发送者发送了一条消息,在他能够再次发送消息之前,
必须等待对方回复。其中,一位参与者将在服务器一侧,而另一位在客户端一侧。

# server.py 服务器
from socket import *
from time import ctime

HOST = ''
PORT = 12345
BUFSIZ = 1024
ADDR = (HOST, PORT)

tcpServer = socket(AF_INET, SOCK_STREAM)
tcpServer.bind(ADDR)
tcpServer.listen(5)

try:
    while True:
        print('waiting for connection...')
        tcpClient, addr = tcpServer.accept()
        print('Connected from:', addr)
        while True:
            data = tcpClient.recv(BUFSIZ)
            print('[%s]: %s' % (ctime(), data.decode('utf-8')))
            reply = input('> ')
            tcpClient.send(bytes(reply, 'utf-8'))
        tcpClient.close()
    tcpServer.close()
except KeyboardInterrupt:
    print('Bye!')

# client.py 客户端
from socket import *
from time import ctime

HOST = 'localhost'
PORT = 12345
BUFSIZ = 1024
ADDR = (HOST, PORT)

tcpClient = socket(AF_INET, SOCK_STREAM)
tcpClient.connect(ADDR)

try:
    while True:
        data = input('> ')
        tcpClient.send(bytes(data, 'utf-8'))
        reply = tcpClient.recv(BUFSIZ)
        print('[%s]: %s' % (ctime(), reply.decode('utf-8')))
except KeyboardInterrupt:
    print('Bye!')