堡垒机tcp连接不释放

import socket

def create_tcp_connection(host, port):
    try:
        # 创建一个TCP/IP套接字
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.settimeout(10)  # 设置超时时间
        # 连接到服务器
        sock.connect((host, port))
        print(f"Connected to {host}:{port}")
        # 发送数据
        message = "Hello, server!"
        sock.sendall(message.encode())
        # 接收数据
        data = sock.recv(1024)
        print(f"Received: {data.decode()}")
    except socket.error as e:
        print(f"Socket error: {e}")
    finally:
        # 关闭连接
        sock.close()
        print("Connection closed")

if __name__ == "__main__":
    create_tcp_connection("example.com", 80)