io多路复用（三）

#！/usr/bin/env python
# -*- coding:utf-8 -*-
import socket
sk1 = socket.socket()
sk1.bind(('127.0.0.1',8001,))
sk1.listen()

inputs = [sk1,]
outputs = []
message_dict = {}
import select
while True:
    # [sk1,sk2,sk3]select内部自动监听sk1,sk2,sk3,三个对象，一旦某个句柄发生变化（accept（））
    # 如果有链接sk1
    # r_list = [sk1,sk2]
    r_list,w_list,e_list = select.select(inputs,outputs,inputs,1)
    print('正在监听的socket对象%d' % len(inputs))
    print(r_list)
    for sk1_or_conn in r_list:
        # 每一个链接对象
        if sk1_or_conn ==sk1:
            # 表示有新用户链接
            conn,adress = sk1_or_conn.accept()
            inputs.append(conn)
            message_dict[conn] = []
        else:
            # 表示有老用户来链接
            try:
                data_bytes = sk1_or_conn.recv(1024)
            except Exception as e:
            else:
                data_str = str(data_bytes, encoding='utf-8')
                message_dict[sk1_or_conn].append(data_str)
                outputs.append(sk1_or_conn)
                #sk1_or_conn.sendall(bytes(data_str + '好', encoding='utf-8'))
    for conn in w_list:
        recv_str = message_dict[conn][0]
        del message_dict[conn][0]
        conn.sendall(bytes(recv_str + '好', encoding='utf-8'))
        outputs.remove(conn)
    for sk in e_list:
        inputs.remove(sk)