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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Backward compatibility refers to a hardware or software system that can use interfaces and data from earlier generation (s) of the system.