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Title: Python 异常介绍，以及抛出和捕获异常 - Python 教程 | 学

Description: 在 Python 中，所有异常（表示异常的类）都需要继承自 BaseException 或 Exception，这包括 Python 的内置异常，以及由开发人员定义的异常。对于可能引发异常的代码，你可以使用 try…except 语句来捕获并处理异常，只需要将这些代码放置在 try 语句之后，并使用 except 语句来匹配异常即可。使用 Python 提供的 raise 语句，开发人员可以主动抛出（引发）一个异常。

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1.异常组https://learnscript.net/zh/python/exceptions/exception-groups/
2.警告https://learnscript.net/zh/python/exceptions/warnings/
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异常，异常处理介绍https://learnscript.net/zh/programming/operations/exceptions/
Python 类继承介绍，以及实现类继承，多重继承，方法重写https://learnscript.net/zh/python/classes/class-inheritance/
编程教程https://learnscript.net/zh/programming/
异常，异常处理介绍https://learnscript.net/zh/programming/operations/exceptions/
异常组https://learnscript.net/zh/python/exceptions/exception-groups/
警告https://learnscript.net/zh/python/exceptions/warnings/
src/zh/exceptions·codebeatme/python·GitHubhttps://github.com/codebeatme/python/tree/master/src/zh/exceptions
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异常https://learnscript.net/zh/python/exceptions/#python-exceptions
自定义异常https://learnscript.net/zh/python/exceptions/#custom-python-exceptions
捕获处理异常https://learnscript.net/zh/python/exceptions/#catch-python-exceptions
引用当前被处理的异常https://learnscript.net/zh/python/exceptions/#reference-python-exception-currently-being-handled
匹配多个或任意类型的异常https://learnscript.net/zh/python/exceptions/#match-multiple-or-arbitrary-python-exception-types
处理没有异常被抛出的情况https://learnscript.net/zh/python/exceptions/#handle-cases-where-no-python-exception-is-thrown
完成异常处理的清理工作https://learnscript.net/zh/python/exceptions/#complete-cleanup-of-exception-handling
抛出异常https://learnscript.net/zh/python/exceptions/#throw-python-exceptions
将已处理的异常指定为原因https://learnscript.net/zh/python/exceptions/#assign-handled-exception-as-cause
内容分类https://learnscript.net/zh/python/exceptions/#catalogs
源码https://learnscript.net/zh/python/exceptions/#code
& Python 教程https://learnscript.net/zh/python/
Python 类继承介绍，以及实现类继承，多重继承，方法重写https://learnscript.net/zh/python/classes/class-inheritance/
& 编程教程https://learnscript.net/zh/programming/
异常，异常处理介绍https://learnscript.net/zh/programming/operations/exceptions/
命名空间，作用域介绍https://learnscript.net/zh/programming/data/namespaces-and-scope/

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