2017年11月底開始python的學習。選擇python 3.6。

賬號登陸的粗糙實現。

 1 import getpass
 2 
 3 wall = True
 4 usr = ‘root‘
 5 paswd = 0000
 6 block_list = open("test.txt", ‘a‘)
 7 print("Please sign in!")
 8 
 9 for i in range(3, 0, -1):
10     print(‘{time} time(s) left‘.format(time=i))
11     usr_in = input("username: ")
12     paswd_in = int(input("
 
password:"))  #
13     # password = getpass.getpass("password:")
14 
15     for line in open(‘test.txt‘):
16         if line == usr:
17             print(‘Your account is blocked!‘)
18             wall = False
19             break
20 
21     if wall is False:
22         print(‘Call you admin!‘)
23         break
 

24     elif usr == usr_in and paswd_in == paswd:
25         print(‘------ Welcome {_name}! ------‘.format(_name=usr))
26         break
27     else:
28         if i != 1:
29             print(‘Invalid password or username!\nPlease try again!‘)
30         else:
31             print(‘Your account is blocked!\nCall your admin!
 
‘)
32             block_list.writelines(‘{0}‘.format(usr))
33 
34 block_list.close()

Python學習第一周-賬號登陸練習