Python-抛出异常(try-except-else-finally)

try-except:

1 try:
2     a = int(input('输入被除数:'))
3     b = int(input('输入除数:'))
4     print('a / b = ', a/b)
5 except:
6     print('输入不合法')
7 print('程序结束')
1 try:
2     a = int(input('输入被除数:'))
3     b = int(input('输入除数:'))
4     print('a / b = ', a/b)
5 except ZeroDivisionError:
6     print('除数不能为0')
7 except ValueError:
8     print('只能输入数字串')
9 print('程序结束')

try-except-else:

1 try:
2     a = int(input('输入被除数:'))
3     b = int(input('输入除数:'))
4     result = a / b
5 except BaseException as e:
6     print('程序运行出错,', e)
7 else:
8     print('a / b = ', result)
9 print('程序结束')

try-except-else-finally:

 1 try:
 2     a = int(input('输入被除数:'))
 3     b = int(input('输入除数:'))
 4     result = a / b
 5 except BaseException as e:
 6     print('程序运行出错,', e)
 7 else:
 8     print('a / b = ', result)
 9 finally:
10     print('谢谢使用')
11 print('程序结束')

 

posted @ 2022-02-26 15:52  Xxiaoyu  阅读(283)  评论(0编辑  收藏  举报