好吧，如果只是为了研究目的，那么你最好的选择是看看维基百科上关于文件名的条目。

如果您想编写一个可移植的函数来验证用户输入并基于此创建文件名，简单的回答是不要。看一看像Perl的File::Spec这样的可移植模块，了解一下完成这样一个“简单”任务所需的所有跳转。

虽然唯一非法的Unix字符可能是/和NULL，但应该考虑到命令行解释。

例如，虽然在Unix中将文件命名为1>&2或2>&1是合法的，但在命令行中使用这样的文件名可能会被误解。

类似地，也可以将文件命名为$PATH，但当试图从命令行访问它时，shell将把$PATH转换为其变量值。

The forbidden printable ASCII characters are: Linux/Unix: / (forward slash) Windows: < (less than) > (greater than) : (colon - sometimes works, but is actually NTFS Alternate Data Streams) " (double quote) / (forward slash) \ (backslash) | (vertical bar or pipe) ? (question mark) * (asterisk) Non-printable characters If your data comes from a source that would permit non-printable characters then there is more to check for. Linux/Unix: 0 (NULL byte) Windows: 0-31 (ASCII control characters) Note: While it is legal under Linux/Unix file systems to create files with control characters in the filename, it might be a nightmare for the users to deal with such files. Reserved file names The following filenames are reserved: Windows: CON, PRN, AUX, NUL COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9 LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, LPT9 (both on their own and with arbitrary file extensions, e.g. LPT1.txt). Other rules Windows: Filenames cannot end in a space or dot. macOS: You didn't ask for it, but just in case: Colon : and forward slash / depending on context are not permitted (e.g. Finder supports slashes, terminal supports colons). (More details)

要让Windows告诉你答案，最简单的方法是尝试通过资源管理器重命名文件，并输入反斜杠/作为新名称。Windows会弹出一个消息框，告诉你非法字符的列表。

A filename cannot contain any of the following characters:
    \ / : * ? " < > | 

微软文档-命名文件，路径和命名空间-命名约定

在Windows 10(2019)中，输入以下字符时会出现错误，导致输入失败:

文件名不能包含以下字符: \ /: * ?< > |

对于任何寻找正则表达式的人:

const BLACKLIST = /[<>:"\/\\|?*]/g;