如何将数据从server.py发送到特定客户端

import socket

# 创建服务器套接字
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 绑定服务器套接字到特定IP地址和端口号
server_address = ('localhost', 12345)
server_socket.bind(server_address)

# 监听连接请求
server_socket.listen(1)

while True:
    print('等待客户端连接...')
    # 接受客户端连接请求
    client_socket, client_address = server_socket.accept()
    print('客户端已连接:', client_address)

    # 发送数据到特定客户端
    data = 'Hello, client!'
    client_socket.send(data.encode())

    # 关闭客户端套接字
    client_socket.close()

import socket

# 创建客户端套接字
client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 连接到服务器的IP地址和端口号
server_address = ('localhost', 12345)
client_socket.connect(server_address)

# 接收来自服务器的数据
data = client_socket.recv(1024).decode()
print('接收到的数据:', data)

# 关闭客户端套接字
client_socket.close()