异常处理

  1. try:
  2.     # do something
  3. except 异常类型1:
  4.     # do something
  5. except 异常类型2:
  6.     # do something
  7. ...
  8. except:
  9.     # do something
  10. finally:
  11.     # try正常结束或except异常处理结束都会执行

自定义异常

  1. class MyException(Exception):
  2.     def __init__(self,message):
  3.         super().__init__(message)
  5. try:
  6.     pass
  7. except Exception:
  8.     raise MyException('出错辣~')