Python用户登录BATE

count = 0

real_username = 'jacky'
real_password = 'abcd1234,'

f = open('blacklist','r')
lock_file = f.read()
f.close()

username = input('Input your username please:')

for i in range(1):
    if lock_file == username:
        print('Sorry,your username is been locked!')
        exit()
    else:
        continue

for i in range(3):
    password = input('Input password please:')
    if password == real_password:
        print('Welcome!!!')
        break
    else:
        print('login faild')
    count += 1

if count == 3:
    print('You try too many times,your username is locked!')
    f = open('blacklist','w')
    f.write('%s'% username)
    f.close()