python socket 通信(2) 协程实现多人聊天室

在服务端，使用python官方的asyncio模块，利用asyncio.start_server方法生成服务器，对每个连接采取分而治之的思路，用协程方法同时进行多个连接。
客户端采用多线程，用两个线程分别运行接收机和发信机。

#server.py
import asyncio


# 连接表
coonlist = []

# 广播机
async def boarder(message: str, coonlist=coonlist):
    for writer in coonlist:
        date = message.encode('utf-8')  # 信息编码
        writer.write(date)

# 定义服务器的事件处理
async def handle_echo(reader, writer):
    coonlist.append(writer)  # 保存发信机队列
    while True:
        data = await reader.read(100)
        if len(data) < 1: break  # 收到空数据即关闭连接
        message = data.decode('utf-8')
        addr = writer.get_extra_info('peername')

        print(f"Received {message!r} from {addr!r}")

        await boarder(message)#广播消息

    print("Close the connection")
    writer.close()
    coonlist.remove(writer)


async def main():
    server = await asyncio.start_server(
        handle_echo, '127.0.0.1', 10000)

    addrs = ', '.join(str(sock.getsockname()) for sock in server.sockets)
    print(f'Serving on {addrs}')

    async with server:
        await server.serve_forever()


asyncio.run(main())

# -*- coding: UTF-8 -*-
import threading
import socket# 客户端 发送一个数据，再接收一个数据
import time

class Client:
    SERVER_IP='localhost'
    PORT=10000


    def __init__(self,serve_ip=SERVER_IP,port=PORT):
        self.client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)  # 声明socket类型，同时生成链接对象
        self.client.connect((serve_ip, port))  # 建立一个链接，连接到服务器端口

    def __del__(self):
        self.client.close()

    def close(self):
        self.client.close()

    def __sender(self):
        while True:
            time.sleep(0.1)
            msg = input("n发送的信息：")
            self.client.send(msg.encode('utf-8'))

    def __receiver(self):
        while True:
            data = self.client.recv(1024)
            if not data:
                print("n没有消息。")
                break
            msg = data.decode('utf-8')
            print("n收到的信息：", msg)

    def loop(self):
        receiver=threading.Thread(target=self.__receiver)
        receiver.start()
        sender=threading.Thread(target=self.__sender)
        sender.start()




c=Client()
c.loop()