如何在没有服务器崩溃的情况下断开客户端与套接字服务器的连接？

Question

我正在使用 Python 3.7 制作服务器。 它的目标是让多个人连接到它（目前是一个用于测试的客户端）并来回发送数据。 发送的数据是用户在我的游戏中的高分。 我希望服务器获取数据，将数据与最高分进行比较，然后将数据发回并让计算机将其保存到文件中。 问题是，客户端接收到的文本数据为 0 和 1： 当您退出游戏并尝试重新连接时，服务器崩溃：

BrokenPipeError：[Errno 32] 损坏 pipe

这是服务器的代码：

import socket
import sys
import time

servsock = socket.socket()
host = '192.168.158.155'
port = 5555
highest_score = '0'

servsock.bind((host, port))
print('Sucsessful bind')

servsock.listen(1)
conn, addr = servsock.accept()
print(addr, 'Has connected')


receiving = conn.recv(1024)
receiving = receiving.decode()

while True:
    if receiving > highest_score:
        highest_score = receiving
        message = highest_score
        message = message.encode()
        conn.send(message)
    else:
        highest_score = highest_score
        failed = highest_score
        failed  = failed.encode()
        conn.send(failed)

下面是游戏客户端的代码：

# Read high score
with open('high_score/high_score.txt', 'r+') as f:
    score_contents = f.read().replace("\n", " ")
    f.close()

# Send data to server
lsock = socket.socket()

host = '192.168.158.155'
port = 5555

lsock.connect((host, port))
print('Connected')

ready_message = score_contents
ready_message = ready_message.encode()
lsock.send(ready_message)
print('sent')

new_high_score = lsock.recv(1024)
new_high_score = new_high_score.decode()
print(str(new_high_score))
with open('high_score/GLOBALhigh_score.txt', 'r+') as GLOBALf:
    GLOBALf.truncate()
    GLOBALscore_contents = GLOBALf.write(f'Highest Score:,{new_high_score}')
    GLOBALf.close()

任何帮助是极大的赞赏！

Answer 1

你的问题的真正根源是accept不在循环中，但这里是如何使用整数而不是字符串。 请注意，您的if语句始终发送实际的高分，因此无需复制该代码>

import socket
import sys
import time

servsock = socket.socket()
host = 'localhost'
port = 5555
highest_score = 0

servsock.bind((host, port))
print('Sucsessful bind')

servsock.listen(1)
while True:
    conn, addr = servsock.accept()
    print(addr, 'Has connected')

    receiving = int(conn.recv(1024))

    if receiving > highest_score:
        highest_score = receiving

    message = str(highest_score).encode()
    conn.send(message)

另一件事，当您从客户端发送分数时，您将换行符转换为空格。 不要那样做； 只需发送数字。 如果你只是要阅读，你不需要“r+”权限，如果你只是要写，你不需要“r+”权限。 为此使用“w”并跳过truncate调用。

# Read high score
with open('high_score/high_score.txt', 'r') as f:
    score_contents = f.read().strip()
    f.close()