#!/usr/bin/env python
#coding=utf-8
import time
dic = {"root":["westos",1020]}
def menu():
while True:
print ‘‘‘
(D)elete user
(S)how user
(E)xit
(A)dd user
(L)ogin
‘‘‘
choice = raw_input("input your choice:")
if choice =="L":
login()
elif choice =="D":
delete()
elif choice =="A":
add()
elif choice =="S":
show()
elif choice =="E":
exit(0)
else:
print "error input"
def delete():
username =raw_input("input username:")
if dic.has_key(username):
passwd = raw_input("input passwd:")
if passwd == dic[username][0]:
print "delete user success"
else:
print "delete failed"
else:
print "no this user"
def show():
username =raw_input("input username:")
if dic.has_key(username):
print dic
else:
s=raw_input("no this user,are you want to add user:(yes/no)")
if s == "yes":
add()
print dic
else:
print "input username error"
def login():
username =raw_input("input username:")
if dic.has_key(username):
passwd =raw_input("input passwd:")
if passwd ==dic[username][0]:
print "login success,welcome back %s" %username
now=time.time()
if now-dic.get(username)[1] <= 14400:
print "you have logged in %s" %(time.ctime(dic[username][1]))
else:
print "you loggin as %s:"%(time.ctime(dic[username][1]))
else:
print "passwd error"
else:
string = raw_input("are you sure to add user:(yes/no)")
if string == "yes":
add()
else:
login()
--------------------------------------------------------------
#def login():
#for i in range(0,3):
#username = raw_input("Please input username:")
#if dic.has_key(username):
#passwd =raw_input("input passwd:")
# if passwd ==dic[username][0]:
# print "login success,welcome back %s" %username
#if time.time()-dic[username][1]>14400:
# print "Last login:%s"%(time.ctime(dic[username][1]))
# else :
# print "You already login %s within 4 hours"%(time.ctime(dic[username][1]))
# break
#else:
# print "ERROR:username is not exist or password error"
# print "you have %d chance"%(2-i)
------------------------------------------------------------------
def add():
username =raw_input("input username:")
passwd =raw_input("input passwd:")
print " add username success"
dic.update({username:[passwd,]})
menu()