对于Windows，您可以使用PowerShell检查它

$PathInvalidChars = [System.IO.Path]::GetInvalidPathChars() #36 chars

要显示您可以转换的UTF-8代码

$enc = [system.Text.Encoding]::UTF8
$PathInvalidChars | foreach { $enc.GetBytes($_) }

$FileNameInvalidChars = [System.IO.Path]::GetInvalidFileNameChars() #41 chars

$FileOnlyInvalidChars = @(':', '*', '?', '\', '/') #5 chars - as a difference

在Windows中创建internet快捷方式时，为了创建文件名，它会跳过非法字符，除了正斜杠被转换为减号。

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

这对我来说在Python中已经足够好了:

def fix_filename(name, max_length=255):
    """
    Replace invalid characters on Linux/Windows/MacOS with underscores.
    List from https://stackoverflow.com/a/31976060/819417
    Trailing spaces & periods are ignored on Windows.
    >>> fix_filename("  COM1  ")
    '_ COM1 _'
    >>> fix_filename("COM10")
    'COM10'
    >>> fix_filename("COM1,")
    'COM1,'
    >>> fix_filename("COM1.txt")
    '_.txt'
    >>> all('_' == fix_filename(chr(i)) for i in list(range(32)))
    True
    """
    return re.sub(r'[/\\:|<>"?*\0-\x1f]|^(AUX|COM[1-9]|CON|LPT[1-9]|NUL|PRN)(?![^.])|^\s|[\s.]$', "_", name[:max_length], flags=re.IGNORECASE)

还可以查看这个过时的列表，以获得FAT32中的=等其他遗留内容。

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)

对于Windows，您可以使用PowerShell检查它

$PathInvalidChars = [System.IO.Path]::GetInvalidPathChars() #36 chars

要显示您可以转换的UTF-8代码

$enc = [system.Text.Encoding]::UTF8
$PathInvalidChars | foreach { $enc.GetBytes($_) }

$FileNameInvalidChars = [System.IO.Path]::GetInvalidFileNameChars() #41 chars

$FileOnlyInvalidChars = @(':', '*', '?', '\', '/') #5 chars - as a difference