ConnectionRefusedError套筒Python

Question

我使用数据包套接字编写了简单的客户端/服务器程序，但获取错误，

这是我的代码：

import socket
import random
import sys

def double_server(port=8080):
    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
        s.bind(('', port))
        print('Start work!')
        s.listen(5)
        while True:
            conn, addr = s.accept()
            handle_connection(conn, addr)


def handle_connection(conn, addr):
    print('Connected: ', addr)
    with conn:
        while True:
            data = conn.recv(1024)
            if not data:
                break
            n = int(data.decode())
            res = f"{n*2}\n".encode()
            conn.send(res)

def double_client(port=8080):
    with socket.create_connection(('127.0.0.1', port)) as s:
        f = s.makefile(mode='rw', buffering=1, newline='\n')
        while True:
            n = random.randrange(10)
            f.write(f'{n}\n')
            print(n, f.readline().strip())

if __name__ == '__main__':
    if sys.argv[1] == 'server':
        double_server()

    elif sys.argv[1] == 'client':
        double_client()

但是我得到了ConnectionRefusedError：[Errno 61]连接拒绝 先感谢您