day 1:编写登陆接口

 1 #!/bin/bash/env python
 2 User_list=[‘topaz‘,‘nannan‘]
 3 Pass_list=[‘123‘,‘456‘]
 4 User = input("Name: ")
 5 f = open(‘deny.txt‘,‘a‘)
 6 d = open(‘deny.txt‘).read()
 7 if User in  d:
 8     print("you are lock．．．")
 9     exit()
10 elif User in User_list:
11     count = 0
12     while count < 3 :
13         Passwd = input("Password:")
14         if Passwd == Pass_list[User_list.index(User)]:
15             print("Welcome~")
16             exit()
17         else:
18             count +=1
19     else:
20         print("hhe,too many times 8~")
21         f.write(User)
22         f.write(‘,‘)
23         f.close()
24 else:
25     print("sign up")
26     exit()