Python study first week-account login Exercise

Python learning begins at the end of November 2017. Select Python 3.6.

Rough implementation of account login.

1 ImportGetpass2 3Wall =True4usr ='Root'5PASWD = 00006block_list = open ("Test.txt",'a')7 Print("Sign in!")8 9  forIinchRange (3, 0, 1):Ten     Print('{Time} time (s) left'. Format (time=i)) Oneusr_in = input ("Username:") Apaswd_in = Int (input ("Password:"))# -     #Password = getpass.getpass ("Password:") -  the      forLineinchOpen'Test.txt'): -         ifline = =usr: -             Print('Your account is blocked!') -Wall =False +              Break -  +     ifWall isFalse: A         Print('Call you admin!') at          Break -     elifusr = = usr_in andPaswd_in = =paswd: -         Print('------Welcome {_name}!------'. Format (_name=usr)) -          Break -     Else: -         ifI! = 1: in             Print('Invalid Password or username!\nplease try again!') -         Else: to             Print('Your account is Blocked!\ncall Your admin!') +Block_list.writelines ('{0}'. Format (usr)) -  theBlock_list.close ()

Python study first week-account login Exercise