To add information to the FileInfo object, you must call the add_string_attribute method.

想要向FileInfo对象增加信息，必须调用add_string_attribute方法。

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You'll use this approach in the example that follows to add new attributes to the FileInfo object.

下面的例子是采用这一方法，来向 FileInfo 对象增加新的属性。

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The m_files field signature identifies it as a List of type FileInfo, while the m_directories signature says it's a List of type DirInfo.

而m_directories字段签名则表示这是一个类型为DirInfo的List。

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