Python os.path.exists 和 os.path.isfile 的区别？
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Difference between os.path.exists and os.path.isfile?
提问by Nate Rubin
I'm curious when these two functions will return different values. Also if you could clarify the difference between a path/directory/file that would be appreciated.
我很好奇这两个函数何时会返回不同的值。此外，如果您能澄清路径/目录/文件之间的区别，将不胜感激。
回答by scott_fakename
A directory tests true for exists, but false for isfile. There are a few different types of filesystem objects for which that is also true.
一个目录测试是否存在为真，但对于 isfile 为假。有几种不同类型的文件系统对象也是如此。
isfile means that it is a regular file. It is more specific than exists.
isfile 表示它是一个普通文件。它比现有的更具体。
回答by Dr. Jan-Philip Gehrcke
As you have already found out, the difference between existsand isfileis the fact that the former returns Truein case the given path is a directory ora file, while the latter only returns Trueif the path points to a file.
正如你已经发现，之间的差异exists，并isfile是一个事实，即前者返回True的情况下，给出的路径是一个目录或文件，而后者只返回True，如果路径指向的文件。
Directoriesand filesare quite similar from the technical point of view. A file can contain any kind of data. A directory is just a special entry in the file system (at least on Unix operating systems it is just a special file) that represents the fact that it may contain files and other directories. It is a helpful means for building up a data structure. Using directories, you can organize your data in a hierarchical structure.
从技术角度来看，目录和文件非常相似。文件可以包含任何类型的数据。目录只是文件系统中的一个特殊条目（至少在 Unix 操作系统上它只是一个特殊文件），代表它可能包含文件和其他目录的事实。它是构建数据结构的有用手段。使用目录，您可以按层次结构组织数据。
Especially in the Windows world, directories are often called "folders". I am sure that you yourself are using "folders" for organizing your files.
特别是在 Windows 世界中，目录通常被称为“文件夹”。我确信您自己正在使用“文件夹”来组织您的文件。
A pathis an unambiguous pointer to a resource in the file system. It can either point to a file or to a directory.
一个路径是一个明确的指针在文件系统中的资源。它可以指向一个文件或一个目录。
