# 导入 socket、sys 模块
import socket
import sys

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

# 获取本地主机名
host = socket.gethostname()

port = 9999

# 绑定端口号
serversocket.bind((host, port))

# 设置最大连接数，超过后排队
serversocket.listen(5)

while True:
    clientsocket,addr = serversocket.accept()
    print("连接地址: %s" % str(addr))
    msg1 = clientsocket.recv(1024)
    clientsocket.send(msg1)
    msg2 = clientsocket.recv(1024)
    clientsocket.send(msg2)

    clientsocket.close()