Linux プラットフォームでのネットワーク プログラミングに Python スクリプトを使用する場合のヒント

import socket

# 创建一个 TCP/IP 的 socket 对象
client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 定义服务器的 IP 地址和端口号
server_address = ('127.0.0.1', 8080)

# 连接服务器
client_socket.connect(server_address)

# 发送数据
message = 'Hello, server!'
client_socket.sendall(message.encode())

# 接收服务器的响应
response = client_socket.recv(1024)
print('Received:', response.decode())

# 关闭连接
client_socket.close()

import socket
import threading

# 处理客户端请求的线程函数
def handle_client(client_socket):
    # 接收客户端的数据
    request = client_socket.recv(1024)
    print('Received:', request.decode())
    
    # 发送响应给客户端
    response = 'Hello, client!'
    client_socket.sendall(response.encode())
    
    # 关闭连接
    client_socket.close()

# 创建一个 TCP/IP 的 socket 对象
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 定义服务器的 IP 地址和端口号
server_address = ('127.0.0.1', 8080)

# 绑定地址和端口号
server_socket.bind(server_address)

# 开始监听连接
server_socket.listen(5)
print('Server is running...')

while True:
    # 等待新的客户端连接
    client_socket, client_address = server_socket.accept()
    print('Connected by:', client_address)
    
    # 创建新的线程来处理客户端请求
    client_thread = threading.Thread(target=handle_client, args=(client_socket,))
    client_thread.start()

import socket
import selectors

# 创建一个 TCP/IP 的 socket 对象
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 定义服务器的 IP 地址和端口号
server_address = ('127.0.0.1', 8080)

# 设置 socket 为非阻塞模式
server_socket.setblocking(False)

# 绑定地址和端口号
server_socket.bind(server_address)

# 开始监听连接
server_socket.listen(5)
print('Server is running...')

# 创建一个 selectors 对象
sel = selectors.DefaultSelector()

# 注册 socket 对象到 selectors 对象中
sel.register(server_socket, selectors.EVENT_READ)

while True:
    # 获取发生事件的 socket 对象
    events = sel.select(timeout=None)
    
    for key, mask in events:
        if key.fileobj == server_socket:
            # 有新的客户端连接
            client_socket, client_address = server_socket.accept()
            print('Connected by:', client_address)
            
            # 设置客户端 socket 为非阻塞模式
            client_socket.setblocking(False)
            
            # 注册客户端 socket 到 selectors 对象中
            sel.register(client_socket, selectors.EVENT_READ)
        else:
            # 有客户端发送请求
            client_socket = key.fileobj
            
            # 接收客户端的数据
            request = client_socket.recv(1024)
            print('Received:', request.decode())
            
            # 发送响应给客户端
            response = 'Hello, client!'
            client_socket.sendall(response.encode())
            
            # 注销客户端 socket
            sel.unregister(client_socket)
            
            # 关闭连接
            client_socket.close()