这通常包括检索保存在前一次Edit Settings对话框调用中的配置信息。
Normally this would include retrieving configuration information saved in the previous invocation of the Edit Settings dialog.
如果您的应用程序由多个框架或对话框组成，则您需要为每个框架或对话框调用out put方法，以全面地了解应用程序的情况。
If your application is composed of multiple frames or dialogs, you will need to call the output method for each of them to get a complete picture of the application.
类似地，如果可能，命令应当避免调用用户界面(例如弹出式对话框)。
Similarly, a command should avoid invoking the user interface (such as a pop-up dialog) whenever possible.
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