classMyCustomError(Exception):"""自定义异常类,用于显示自定义的错误信息"""def__init__(self,message):self.message=messagesuper().__init__(self.message) 1. 2. 3. 4. 5. class MyCustomError(Exception): 定义一个新的异常类MyCustomError,它从Python的内置Exception类继承。 def __init__(self,...
>>> raise CustomError("An error occurred") Traceback (most recent call last): ... __main__.CustomError: An error occurred 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 在这里,我们创建了一个名为CustomError的用户定义异常,它派生自exception类。与其他异常一样,可以使用带有可选错误消息的rai...
raise CustomError("发生了一个定制的错误!") except CustomError as e: print(e) # 输出:发生了一个定制的错误! class UserNotFoundException(CustomError): pass try: raise UserNotFoundException("指定用户未找到!") except UserNotFoundException as e: print(e) # 输出:指定用户未找到!2.2 try-except...
classCustomError(Exception):def__init__(self,ErrorInfo):super().__init__(self)#初始化父类self.errorinfo=ErrorInfodef__str__(self):returnself.errorinfoif__name__ =='__main__':try:raiseCustomError('客户异常')exceptCustomErrorase:print(e) AI代码助手复制代码 补充知识:Python自定义异常及常...
class CustomError(Exception): def __init__(self, message, code): super().__init__(message) self.code = code try: if some_condition_not_met(): raise CustomError("特定条件未满足!", 400) except CustomError as ce: print(f"错误代码:{ce.code},错误详情:{ce}") ...
#coding:utf-8 ''' filename: customexception.py ''' class MyCustomError(Exception): def __init__(self, *args): if args: self.message = args[0] else: self.message = None def __str__(self): print('calling str') if self.message: return 'MyCustomError, {0} '.format(self.messag...
class MyCustomException(Exception):def __init__(self, message):super().__init__(message)try:raise MyCustomException("这是一个自定义异常")except MyCustomException as e:print("捕获自定义异常：", e)```通过自定义异常，您可以为程序中的特定错误情况创建更有意义的异常类型，并提供详细的错误信息。
2. custom exception class Error(Exception): pass def MyError(Error): def __init__(self,value): print value self.value = value def __str__(self): return repr(self.value) 3. class class Bird: number = 0 def __init__(self,name): ...
deftest_4():try:s=Noneifs is None:print("s is none")raise NameError # 如果引发NameError异常,后面的代码将不能执行print(len(s))except TypeError:print("None is no lenght")# 自定义异常classCustomException(Exception):def__init__(self,x,y):Exception.__init__(self,x,y)self.x=x ...