day_6.14py网络编程

被动套接字和新建出套接字的区别

单任务,单线程,非阻塞!!!!服务器!

#2018-6-14 16:51:25

#!--*--coding:utf-8 --*--

'''

单进程,单任务 少的可以,多的受不了

2018-6-14 18:44:252

'''

from socket import *

#1.创建socket

serSocket = socket(AF_INET, SOCK_STREAM)

#2.绑定本地ip以及port

localAddr = ('', 7788)

serSocket.bind(localAddr)

#3:让这个socket 变为非阻塞

# serSocket.setblocking(False)

#4.将socket变为监听(被动)套接字

serSocket.listen(5)

#用来保存所有已经连接的客户端信息

clientAddrList =[]

while True:

    #等待一个新的客户端的到来(即完成三次握手的客户端)

    try:

        clientSocket,clientAddr = serSocket.accept()

    except:

        pass

    else:

        print("一个新的客户端到来:%s"%str(clientAddr))

        clientSocket.setblocking(False)

        clentAddrList.append((clientSocket,clientAddr))

    for clientSocket,clientAddr in clientAddrList:

        try:

            recvData = clientScoket.recv(1024)

        except:

            pass

        else:

            if len(recvData)>0:

                print("%s:%s"%(str(clientAddr),recvData))

            else:

                clientScoket.close()

                clientAddrList.remove((clientScoket,clientAddr))

                print("%s 已下线"%str(clientAddr))