【Python学习笔记】设计登陆功能

def NewUser(infoList):

    userAcnt = raw_input('Please create your account:')

    while userAcnt in infoList.keys():

        print 'The name have been used!\n'

        #NewUser(infoList) 

        userAcnt = raw_input('Please create your account:')

    userPasswd = raw_input('Please input your password:')

    infoList[userAcnt] = userPasswd

def LoginUser(infoList):

    userAcnt = raw_input('Please in_put your account:')

    while userAcnt not in infoList.keys():

        print 'The name is not existed!\n'    

        userAcnt = raw_input('Please in_put your account:')

        if userAcnt == 'quitnow':

            return None

    userPasswd = raw_input('Please in_put your password:')

    while infoList[userAcnt] != userPasswd:

        print 'The password is wrong!'

        userPasswd = raw_input('Please in_put your password:')

    print 'Welcome to the system!\n'

def sysDesk():

    print '|---Create an new user: N/n---|'

    print '|---Login your account: E/e---|'

    print '|---   Quit    system : Q/q---|'

    infoList = dict()

    usercom = raw_input('Please in_put command:')

    while(1): 

        if usercom in ('N','n'):

            NewUser(infoList)

        elif usercom in ('E','e'):

            LoginUser(infoList)            

            return None

        elif usercom in ('Q','q'):

            print 'The system is closed\n'

            return None

        else: print 'Wrong command(only 1-3)\n'

        print '\n'

        usercom = raw_input('Please in_put command:')