FTP客户端：这块应该是在数据库里面存储：用户名，密码  这里测试就暂时用一个字典：jesn@jesn-virtual-machine:~$ cat socket_Client.pyimport socket, timeHOST = 'localhost'PORT = 9999s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)s.connect((HOST, PORT))dirc = {'jesn':110, 'mary':120}def check_user():        while 1:                user = raw_input('please enter your user').strip()                if user in dirc.keys():                        count = 0                        while 1:                                if count <3:                                        passwd = int(raw_input('please enter your passwd').strip())                                        if passwd == dirc[user]:                                                print 'welcome in my ftp!'                                                break                                        else:                                                print 'error passwd!!! please enter again!'                                                count = count +1                                                continue                else:                        print 'username not in the list!!!'                        continue                breakcheck_user()while 1:        Input = raw_input('Please input the command :').strip()        if len(Input) == 0:                continue        s.sendall(Input)        user_input = Input.split()        if user_input[0] == 'get':                with open(user_input[1],'wr') as f:                        f.write(s.recv(1024))                        print 'getting ...'                if s.recv(1024) == 'ftpisdown':continue                if not s.recv(1024):break        if user_input[0] == 'set':                with open(user_input[1],'rb') as f:                        y = f.read()                        s.sendall(y)                        print 'senting...'                if s.recv(1024) == 'receiveDown':continue                if not s.recv(1024):break        data = s.recv(8192)        time.sleep(2)        #print 'Received', repr(data)        print datas.close()jesn@jesn-virtual-machine:~$FTP 服务器端：jesn@jesn-virtual-machine:~/ftp$ cat ../thread_socket_server.pyimport SocketServer,commands,timeclass MyTCPHandler(SocketServer.BaseRequestHandler):        def handle(self):                while 1:                        self.data = self.request.recv(1024).strip()                        print "{} wrote:".format(self.client_address[0])                        if not self.data:                                print "client %s is dead!"%self.client_address[0]                                break                        user_input = self.data.split()                        print user_input[0]                        if user_input[0] == 'get':                                with open(user_input[1],'rb') as f:                                        y = f.read()                                        self.request.sendall(y)                                        time.sleep(2)                                        self.request.sendall('ftpisdown')                                        continue                        if user_input[0] == 'set':                                with open(user_input[1],'wb') as f:                                        y = self.request.recv(1024)                                        f.write(y)                                        print 'writeing...'                                        self.request.sendall('receiveDown')                                        continue                        comman_statu,comman_test = commands.getstatusoutput(self.data)                        if len(comman_test) != 0:                                self.request.sendall(comman_test)                                print comman_test                        else:                                self.request.sendall('Done')if __name__ == "__main__":        HOST, PORT = "localhost",9999        server = SocketServer.ThreadingTCPServer((HOST,PORT), MyTCPHandler)        server.serve_forever()jesn@jesn-virtual-machine:~/ftp$