With filename(s) specified, we print out representations of the named XML file(s) after performing namespace setup, thereby maintaining rough backward compatibility with older versions of the tool.

根据指定的文件名，在执行了名称空间设置后，我们打印出指定的 XML 文件的表示，从而大致上保持了对此工具稍老版本的向后兼容。

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You can also mount an ext4 file system as ext3 (backward compatible), but only if the ext4 file system does not use extents (which is discussed in the performance section).

您还可以将 ext4 挂载为 ext3（向后兼容），但前提是 ext4 文件系统不能使用区段（将在性能小节对其进行讨论）。

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File is used for compiling applications that use the API (including the Form Library and the FCI Library), and the uwi_api.jar file is used to compile applications that require backward compatibility.

注意：pe_api . jar文件用于编译那些使用了api(包括Form Library和FCI Library)的应用程序，而uwi_api . jar文件用于编译那些需要向后兼容性的应用程序。

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