Specify the source file for the .xf file that you just created by typing the source file name.

通过输入源文件名字，来为 .xf 文件指定源文件。

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We could do a lot more with the error messages by showing the exact line number and source file name, but this example shows the primary technique.

我们可以通过显示准确的行数值和原始文件名称来做更多的有关错误信息的工作，但是这个实例显示的是基本的技术。

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If the target is a file, then the (single) source must also be a file and a copy of the source file is made with the target name as the new name, replacing any existing file of the same name.

如果目标是一个文件，那么(单一)源必须也为文件，而源文件的副本使用目标名作为新名，替换任何现有的具有相同名称的文件。

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