By using this approach, you can keep the mapping metadata out of your application code.
通过使用此方法，您可以将映射元数据放在应用程序代码外部。
Even creating mapping metadata is not an overly complex task once you've mastered the basics.
一旦你掌握了基本知识，创建映射元数据甚至不是一个过于复杂的任务。
You could modify the mapping metadata file (this tip does not go into details on the mapping metadata file).
您可以修改映射元数据文件(本技巧没有详述映射元数据文件的细节)。
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