Desktop.edit(File f): Uses the program associated with the edit command of the file type to open the file.

edit(File f)：使用与文件类型的 edit命令相关的程序打开文件。

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Desktop.open (file f) : Uses the program associated with the open command of the file type to open the file.

open (File f)：使用与文件类型的openc命令相关的程序打开文件。

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If you type f, then click Escape, file will be filled out, and you'll have to type the 1, 2, or 3 to complete the appropriate file name.

如果您键入f，然后按esc键，将填充file，而您必须键入1、2或3来完成相应的文件名。

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