In org-mode, how do I include other .org files from a (main) .org file?

Question

I want to place some customization codes in a separate file, and include it from other files later. For example, file config.org has a single line #+MATHJAX: align:"left" mathml:t . How do I include it in another .org file abc.org so that the net-effect is exactly same as I write that #+MATHJAX line directly in abc.org?

Answer 1

使用此处记录的 #+setupfile: /path/to/config.org 。

Answer 2

The #+INCLUDE directive can include another file with export options (but it cannot affect the configuration of the enclosing file, since it is only for export purposes). Use it like:

#+INCLUDE: "/path/to/config.org"