如何将下划线视为空格？

vim是否可以将下划线视为空格或连字符，所以当我使用sequence 时，当光标位于开头时dw，它不会删除整个句子some_long_text_with_underscores吗？

dw删除一个单词，由该iskeyword设置定义单词的构成。来自:h word：

                                                        word
A word consists of a sequence of letters, digits and underscores, or a
sequence of other non-blank characters, separated with white space (spaces,
tabs, <EOL>).  This can be changed with the 'iskeyword' option.  An empty line
is also considered to be a word.

要删除_从iskeyword，做：

set iskeyword-=_