If you pass reveal an invalid path or the perennial "dot" (., the present directory) or "dot dot" (.., the parent directory), the recursion ends.

如果为reveal传递一个无效的路径或“小圆点”(.，当前目录)或“两个小圆点”(. .，父目录)，那么递归将结束。

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If a specified directory path is invalid, the server cache is disabled.

如果指定的目录路径无效，则禁用服务器缓存。

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Reported by the directory handling routines when a path does not exist or is invalid.

当一个路径不存在或者是有病的时候，借着目录处理常式报告。

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