linux tcp编程

import socket

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

# 获取本地主机名
host = socket.gethostname()

# 设置端口
port = 9999

# 绑定端口号和 IP 地址
server_socket.bind((host, port))

# 监听连接
server_socket.listen(5)

while True:
    # 建立客户端连接
    client_socket, addr = server_socket.accept()
    print("连接地址: %s" % str(addr))

    # 接收小于 1024 字节的数据
    msg = client_socket.recv(1024)

    # 向下发送数据
    client_socket.send("Hello from server!".encode('utf-8'))

    # 关闭连接
    client_socket.close()

import socket

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

# 获取本地主机名
host = socket.gethostname()

# 设置端口
port = 9999

# 连接服务，指定主机和端口
client_socket.connect((host, port))

# 接收小于 1024 字节的数据
msg = client_socket.recv(1024)

# 输出接收到的消息
print("Message from server: %s" % msg.decode('utf-8'))

# 关闭连接
client_socket.close()