login---用户登陆，密码失败3次，账户将被锁住

user_reset.py和user_login.py在同一目录
-----------------user_reset.py

pickle
user={:{:,:,:},:{:,:,:}}
(user)
f=(,)
pickle.dump(user,f)
f.close()

-----------------------------user_login.py

pickle,sys,getpass
f=(,)
user_all=pickle.load(f)
f.close()
write_user():
f = (, )
pickle.dump(user_all, f)
f.close()

logion():
FLAG=user=()
user user_all.keys():
()
user = ()
user == :
sys.exit()
:
user_all[user][] ==:
password = ()
password != user_all[user][]:
user_all[user][] -=user_all[user][] == :
user_all[user][] = (% user)
write_user()
sys.exit()
(%user_all[user][])
password = ()
password == :
write_user()
sys.exit()
:
user_all[user][]=()
write_user()
FLAG = :
(%user)
FLAG
__name__ == :
logion()
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