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python:

server.py

if __name__ == '__main__':    import socket    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)    sock.bind(('localhost', 8001))    sock.listen(5)    while True:        connection,address = sock.accept()        try:            connection.settimeout(5)            buf = connection.recv(1024)            if buf == '1':                connection.send('welcome to server!')            else:                connection.send('please go out!')        except socket.timeout:            print 'time out'        connection.close()

client.py

if __name__ == '__main__':    import socket    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)    sock.connect(('localhost', 8001))    import time    time.sleep(2)    sock.send('1')    print sock.recv(1024)    sock.close()

server.lua

socket = require("socket");host = host or "127.0.0.1";port = port or "8383";server = assert(socket.bind(host, port));ack = "ack\n";while 1 do    print("server: waiting for client connection...");    control = assert(server:accept());    while 1 do         command,status = control:receive();  if status == "closed" then break end        print(command);        control:send(ack);    endend

local socket = require("socket")host = "127.0.0.1"port = 8383--打开一个TCP连接c = assert (socket.connect (host, port))c:send ("GET \n")while (true) do local s, status, partial = c:receive () print(s) if status == "closed" then break end c:send ("GET \n")endc:close ()

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