perldoc perlunicode 说

正则表达式中的字符类匹配字符而不是字节，并匹配 Unicode 属性数据库中指定的字符属性.例如，w 可用于匹配日语表意文字.

Character classes in regular expressions match characters instead of bytes and match against the character properties specified in the Unicode properties database. w can be used to match a Japanese ideograph, for instance.

所以看起来你的问题的答案是是".

So it looks like the answer to your question is "yes".

但是，您可能希望使用 p{} 构造来直接访问特定的 Unicode 字符属性.您可能可以使用 p{L}(或者更短的 pL)表示字母和 pN 表示数字，感觉有点多相信你会得到你想要的.

However, you might want to use the p{} construct to directly access specific Unicode character properties. You can probably use p{L} (or, shorter, pL) for letters and pN for numbers and feel a little more confident that you'll get exactly what you want.