如何创建非本地服务器Python？

Question

我有一台非常基本的服务器，用于我的Pygame游戏，但是我不知道是否可以使从不同网络连接的客户端访问服务器。目前，我可以从同一网络连接，但是由于我正在为套接字使用本地IP地址，因此这肯定无法从不同的网络连接。 这是我的四个脚本（其中两个只是类）：

文件 server.py

from _thread import *
import pickle
from player import Player

class Server:
    def __init__(self):
        self.players = [Player(0,0,20,20, (255,0,0)), Player(100,100,20,20,(0,0,255))]
        self.numPlayers = 0

        ip = (socket.gethostbyname(socket.gethostname()))
        print (ip)
        port = 5555

        self.s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

        try:
            self.s.bind((ip, port))
        except socket.error as e:
            print(e)

    def client_thread(self, conn, player):
        conn.send(pickle.dumps(self.players[player]))
        while True:
            try:
                data = pickle.loads(conn.recv(2048))

                if isinstance(data, Player):
                    self.players[player] = data

                playersToSend = []
                for each in range (0,len(self.players)):
                    if each != player:
                        playersToSend.append(self.players[each])

                conn.send(pickle.dumps(playersToSend))

                if data == "quit":
                    break

                if not data:
                    print ("Disconnected")
                    break
            except EOFError as e:
                break
        print ("Lost Connection")
        self.numPlayers -= 1


serv = Server()

serv.s.listen(20)
print("Waiting for connection, server started")

while True:
    conn, addr = serv.s.accept()
    print (f"Connection found from {addr}")
    start_new_thread(serv.client_thread, (conn,serv.numPlayers))
    serv.numPlayers += 1

file client.py

import pygame
from pygame import QUIT

from Network import Network

pygame.init()
win = pygame.display.set_mode((500,500))
n = Network() # initiate the network object
playerPos = (n.p.x, n.p.y) # connect to the server and get the starting position

print (playerPos[0],playerPos[1])

FPS = pygame.time.Clock()

def move():
    keys = pygame.key.get_pressed()
    if keys[pygame.K_UP]: n.p.y -= n.p.velocity
    if keys[pygame.K_DOWN]: n.p.y += n.p.velocity
    if keys[pygame.K_RIGHT]: n.p.x += n.p.velocity
    if keys[pygame.K_LEFT]: n.p.x -= n.p.velocity
    n.p.update()

while True:
    for event in pygame.event.get():
        if event.type == QUIT:
            n.send("quit")
            pygame.quit()
            exit(0)

    
    move()

    players = [] # reset/set the list
    players = n.send(n.p) #send off the player to the server, to receiver the other player
    
    win.fill((255,255,255))

    for each in players:
        pygame.draw.rect(win, (255,0,0), pygame.Rect(each.rect))
    pygame.draw.rect(win, (0,0,255), pygame.Rect(n.p.rect))

    
    pygame.display.update()
    FPS.tick(60)

file network.py.py

import pickle


class Network:
    def __init__(self):
        self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.ip = socket.gethostbyname(socket.gethostname())
        self.port = 5555
        self.addr = (self.ip, self.port)
        self.p = self.connect()

    def connect(self):
        self.sock.connect(self.addr)
        p = pickle.loads(self.sock.recv(2048))
        return p

    def send(self, data):
        self.sock.sendall(pickle.dumps(data))
        return pickle.loads(self.sock.recv(2048))

file > player.py

import pickle


class Player():
    def __init__(self, x, y, width, height, colour):
        self.x, self.y = x, y
        self.width, self.height = width, height
        self.colour = colour
        self.velocity = 3

        self.rect = (x, y, width, height)

    def update(self):
        self.rect = (self.x, self.y, self.width, self.height)

    def draw(self, win):
        pygame.draw.rect(win, self.colour, self.rect)

Answer 1

要从其他网络连接到您的服务器，您需要设置Internet路由器以将请求从Internet转发到计算机。这将通过在路由器的IP地址打开配置页面（只需打开 http：//＆lt; your_routers_ip＆gt; 在浏览器中）。
不过，除非您的计算机一直在线，否则最好使用 pythonanywhere 它是Python WebApps的托管服务。