Introduction to network programming socket communication

Server: 

Import socket 
Sever = socket.socket () # first establish a tunnel 
sever.bind (( " 127.0.0.1 " , 9888)) # establish an IP address plus port number 
sever.listen (5) # set the maximum user five 

the while True: 
    ATT, IDD = sever.accept () # receiving messages from users 
    the while True:
         the try : 
            RES = att.recv (1024) # determines whether the user sends a message greater than 1024 
            Print (res.decode ()) # decode to decode the binary conversion to a normal character. 8-pycharm default UTF 
            the while True: 
                Choice = INPUT (" Enter " .) .Encode () Strip () # see the user information and then himself in the input 
                IF  not Choice: the Continue   # judge whether the input is empty space-time then continue entering 
                att.send (Choice) # input information to the the client 
                break        # end of 
        the except ConnectionResetError aS E:   # because it is the end user will report an error when the server is working 24 hours and then the server kick kick like a 
            break

Client 

Import socket 
Client   = socket.socket ()         # establish a tunnel 
the client.connect (( " 127.0.0.1 " , 9888)) # ip address and port number of the server links 

the while True: 
    Choice = the INPUT ( " Enter " ) .encode () .strip () # linked directly send messages 
    iF  Not Choice: Continue 
    client.send (Choice) # contents of the input to the server transmits to the 
    RAS = client.recv (1024) # feedback information is greater than the server determines to accept 1024 
    Print (ras.decode ()) # print decoded