#socket_server.py     import socket  import os  import sys     def work():          sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)          sock.bind(('0.0.0.0',1000))          sock.listen(5)          while True:                  try:                          conn, addr = sock.accept()                          ret = conn.recv(2048)                          result = os.popen(ret).read()                          conn.send(result)                  except KeyboardInterrupt:                          print 'Now we will exit'                          sys.exit(0)          sock.close()     if __name__ == '__main__':          work()      

socket实例化，并且绑定1000端口，持续进行监听，'0.0.0.0'表示监听本地。sock.listen(backlog)表示可同时监听连 接的数量，一般为5。sock.accept()返回(connection,address)，connection通常用来发送和接收数 据，address是客户端的Internet地址。conn.recv(2048)进行接收数据，然后conn.send(result)将结果送回给 客户端。

#socket_client.py     import socket     def socket_send(command):      sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)          sock.connect(('192.168.1.55', 1000))          sock.send(command)          result = sock.recv(2048)          sock.close()          return result     if __name__ == '__main__':       print socket_send('ls')  sock.connect(address)，里面是一个tuple，IP地址和PORT，发送命令给server，然后用result接收结果并进行return