TCP套接字编程代码

TCP（Transmission Control Protocol）套接字编程通常涉及客户端和服务器两个部分。这里是一个简单的Python例子，展示了一个基本的TCP服务器和客户端程序：

**服务器端代码** (server.py):

import socket

# 创建socket对象
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 绑定地址和端口
server.bind(('localhost', 12345))

# 开始监听连接
server.listen(1)
print("Server is listening...")

while True:
    # 等待客户端连接
    client, addr = server.accept()
    print(f"Accepted connection from {addr[0]}:{addr[1]}")

    # 接收客户端数据并发送回应
    data = client.recv(1024)
    if not data:
        break
    print("Received:", data.decode())
    client.sendall("Hello, Client!".encode())

    # 关闭连接
    client.close()

**客户端代码** (client.py):

import socket

# 创建socket对象
client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 连接到服务器
client.connect(('localhost', 12345))

# 发送数据到服务器
message = "Hello, Server!"
client.sendall(message.encode())

# 接收服务器响应
response = client.recv(1024)
print("Received:", response.decode())

# 关闭连接
client.close()