猫一个文件本身为什么这个空白文件吗？
Unix: cating a file out to itself - why does this blank the file?
然而，你的程序将为此无法启动，所以你至少要有一个空白文件。
However, then your application will not start, so you have to have an empty file at least.
然而，你的程序将为此无法启动，所以你至少要有一个空白文件。
However, then your application will not start, so you have to have an empty file at least.
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