Python中的Socket編程循環

我想要做的是從客戶端獲取一封信，將其發送到服務器，讓服務器進行一些更改並將其發回。然後我希望客戶端顯示它。但是我很難將它變成一個循環。我希望它不斷要求一封信，直到勝利等於真。我怎樣才能做到這一點？我試圖在服務器端添加一個while循環，但得到了關於錯誤文件描述符的錯誤。謝謝！Python中的Socket編程循環

客戶：

import sys 
from socket import * 

if sys.argv.__len__() != 3: 
    serverName = 'localhost' 
    serverPort = 5555 
else: 
    serverName = sys.argv[1] 
    serverPort = int(sys.argv[2]) 

clientSocket = socket(AF_INET, SOCK_STREAM) 


clientSocket.connect((serverName, serverPort)) 



# Get letter from user 
letter = input('Guess a letter: ') 

# Sends letter 
letterBytes = letter.encode('utf-8') 
clientSocket.send(letterBytes) 

#Recieves newWord 
newWordInBytes = clientSocket.recv(1024) 
newWord = newWordInBytes.decode('utf-8') 
print(newWord) 

clientSocket.close()

服務器：

 import sys 

from socket import * 

if sys.argv.__len__() != 2: 
    serverPort = 5555 
else: 
    serverPort = int(sys.argv[1]) 

# This is a welcome socket 
serverSocket = socket(AF_INET, SOCK_STREAM) 


serverSocket.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1) 


serverSocket.bind(('', serverPort)) 

# Listener begins listening 
serverSocket.listen(1) 

print("The server is ready to receive") 

#Set secret word 
word = 'arkansas' 
linesForString = ' '  
#Prints out number of letters 
for x in word: 
    linesForString += '_ ' 


while 1: 
    # Wait for connection and create a new socket 
    # It blocks here waiting for connection 
    connectionSocket, addr = serverSocket.accept() 
    win = ' ' 
    #Sends lines of words 
    linesInBytes = linesForString.encode('utf-8') 
    connectionSocket.send(linesInBytes) 

    while 1: 

     # Receives Letter 
     letter = connectionSocket.recv(1024) 
     letterString = letter.decode('utf-8') 

     win = False 
     while win == False: 
      newWord = ' ' 

      for x in word: 
       if(letterString == x): 
        newWord += x  
       else: 
        newWord += '_ ' 

      #Sends newWord 
      newWordInBytes = newWord.encode('utf-8') 
      connectionSocket.send(newWordInBytes) 

      if(newWord == 'Arkansas'): 
       win = True 
       print('You have won the game') 
      else: 
       win = False 
     # Close connection to client but do not close welcome socket 
     connectionSocket.close()

來源

2017-10-16 dani

您沒有顯示我們可以測試的完整示例。 – Adirio

@Adirio我剛添加了我的所有代碼！謝謝！ – dani

您正試圖向他發送'_ _ _ _ _ _ _ _'，但客戶端沒有收聽。然後客戶端發送一封信，服務器正在接收並解碼它，並形成客戶正在接收和打印的丟失字母的新單詞，然後關閉連接。與此同時，服務器重新將這個新詞作爲內部'while'沒有中斷，並嘗試在關閉的連接上再次發送它，從而爲您提供該錯誤。你無法知道他猜出了哪些字母，客戶端沒有循環，也不會聽到客戶端的初始空白字。 – Adirio

這一序列圖中可以幫助你建立你的應用程序。嘗試根據圖表修改程序並告訴我們您遇到的問題。

來源

2017-10-17 07:21:19 Adirio

Python中的Socket編程循環

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