代码

# coding:utf-8from socket import *# 1.创建服务器socketsock = socket(AF_INET, SOCK_STREAM)# 2.绑定主机和端口addr = ('', 7788)  #sock.bind(addr)# 3. 设置最大监听数目，并发sock.listen(10)# 4. 设置成非阻塞sock.setblocking(False)# 保存客户端socketclientAddrList = []# print(sock.)while 1:    try:        clientSocket, clientAddr = sock.accept()    except:        pass    else:        print("一个新客户端到来：%s" % str(clientAddr))        clientSocket.setblocking(False)        clientAddrList.append((clientSocket, clientAddr))    for clientSocket, clientAddr in clientAddrList:        try:            recvData = clientSocket.recv(1024)        except:            pass        else:            if len(recvData) > 0:                print("%s:%s" % (str(clientAddr), recvData))            else:                clientSocket.close()                clientAddrList.remove((clientSocket, clientAddr))                print("%s 已经下线" % str(clientAddr))