Python中的分支条件结构
1. if
1 #!/usr/bin/env python
2 #-*- coding:utf-8 -*-
3 user=input('Please input your username : ')
4 if user=='admin': 5 print('Nice')
2. if ... else ...
1 #!/usr/bin/env python 2 #-*- coding:utf-8 -*- 3 user=input('Please input your username : ') 4 pass=input('Please input your password: ') 5 if user=='admin' and pass=='123456': 6 print('Good') 7 else: 8 print('Bad')
3. if ... elif ... else ...
1 #!/usr/bin/env python 2 #-*- coding:utf-8 -*- 3 grade=(prompt='Please input your grade') 4 if grade>=85: 5 print('Great') 6 elif garde<85 and grade>=70: 7 print('Good') 8 else grade<70: 9 print('Bad')
