校园管理系统 -- 登录部分

Posted 2020-12-26 yd2018

版本一：登录之后自动识别身份

 1 def login():
 2     while 1:
 3         name = input(‘请输入用户名：‘)
 4         password = input(‘请输入密码：‘)
 5         with open(‘校园成员信息.txt‘,encoding=‘utf-8‘) as info:
 6             for line in info:
 7                 if line.strip().split(‘ ‘)[1] == name and line.strip().split(‘ ‘)[2] == password:
 8                     print(‘登录成功‘)
 9                     return ‘欢迎{}‘.format(line.split(‘ ‘)[0])
10                     break
11             if line.strip().split(‘ ‘)[1] != name:
12                 print(‘用户名不存在,请重新输入‘)
13                 continue
14             elif line.strip().split(‘ ‘)[2] != password:
15                 print(‘密码输入错误,请重新输入‘)
16                 continue
17             break
18 print(login())

 

版本二：先确定身份，再登录

 1 def login():
 2     ID_choise = input(‘‘‘请选择你的身份
 3     1. 管理员
 4     2. 讲师
 5     3. 学生
 6     ‘‘‘)
 7     if ID_choise == ‘1‘:
 8         open_file = ‘管理员信息.txt‘
 9     elif ID_choise == ‘2‘:
10         open_file = ‘讲师信息.txt‘
11     elif ID_choise == ‘3‘:
12         open_file = ‘学生信息.txt‘
13     else:
14         return ‘请选择正确的身份‘
15     while 1:
16         name = input(‘请输入用户名：‘)
17         password = input(‘请输入密码：‘)
18         with open(open_file,encoding=‘utf-8‘) as info:
19             for line in info:
20                 if line.strip().split(‘ ‘)[1] == name and line.strip().split(‘ ‘)[2] == password:
21                     print(‘登录成功‘)
22                     return ‘欢迎{}‘.format(line.split(‘ ‘)[0])
23                     break
24             if line.strip().split(‘ ‘)[1] != name:
25                 print(‘用户名不存在,请重新输入‘)
26                 continue
27             elif line.strip().split(‘ ‘)[2] != password:
28                 print(‘密码输入错误,请重新输入‘)
29                 continue
30             break
31 print(login())