如何使用自定义消息实现一个自定义的 Python 异常?
对于以上给定的代码,解决方案如下
示例
class CustomValueError(ValueError): def __init__(self, arg): self.arg = arg try: a = int(input("Enter a number:")) if not 1 < a < 10: raise CustomValueError("Value must be within 1 and 10.") except CustomValueError as e: print("CustomValueError Exception!", e.arg)
输出
Enter a number:45 CustomValueError Exception! Value must be within 1 and 10. Process finished with exit code 0
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