@zxgngl 在用过的 Markdown 编辑器中，引用都可以只在第一行写一个>，第二行及之后不用写，默认是引用部分，比如：
> The overriding design goal for Markdown's
formatting syntax is to make it as readable
as possible. The idea is that a
Markdown-formatted document should be
publishable as-is, as plain text, without
looking like it's been marked up with tags
or formatting instructions.