1、服务端 server.py

# -*- coding: utf-8 -*-import socketimport argparsehost = 'localhost'data_payload = 2048backlog = 5def echo_server(port):    # 建立一个TCP服务端    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)    # 设置套接字复用    sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)    # 绑定套接字到端口    server_address = (host, port)    print 'Starting up echo server on %s port %s' % server_address    sock.bind(server_address)    # 监听客户端，backlog值设定连接序列的最大编号    sock.listen(backlog)    while True:        print 'Waiting to receive message from client'        client, address = sock.accept()        data = client.recv(data_payload)        if data:            print 'Receive Data:%s' % data            # 返回处理过的数据            data = '
     
      '+data+'
     '            client.send(data)            print 'Sent %s bytes back to %s' % (data, address)        # 断开连接        client.close()if __name__ == '__main__':    parser = argparse.ArgumentParser(description='Socket Server Example')    parser.add_argument('--port', action='store', dest='port', type=int, required=True)    given_args = parser.parse_args()    port = given_args.port    echo_server(port)

 

2、客户端client.py

# -*- coding: utf-8 -*-import socketimport argparsehost = 'localhost'def echo_client(port):    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)    server_address = (host, port)    print 'Connecting to %s port %s' % server_address    sock.connect(server_address)    try:        message = '我是一个程序猿'        # 将内容在CMD窗口内转换成GBK编码        message = message.decode('utf-8').encode('gbk')        print 'Sending: %s' % message        sock.sendall(message)        amount_received = 0        amount_expected = len(message)        while amount_received < amount_expected:            data = sock.recv(16)            amount_received += len(data)            print 'Received:%s' % data    except socket.error, e:        print 'Socket error: %s' % str(e)    except Exception, e:        print 'Other error: %s' % str(e)    finally:        print 'Closing connection to the server'        sock.close()if __name__ == '__main__':    parser = argparse.ArgumentParser(description='Socket Server Example')    parser.add_argument('--port', action='store', dest='port', type=int, required=True)    given_args = parser.parse_args()    port = given_args.port    print port    echo_client(port)

 

3.运行

python server.py --port=9900

python client.py --port=9900