This is the official manual for the latest Org-mode release.
:exports header argument is to specify if that part of the Org
file is exported to, say, HTML or LaTeX formats. Note that
:exports affects only ‘src’ code blocks and not inline code.
codeThe default. The body of code is included into the exported file. Example:
resultsThe results of evaluation of the code is included in the exported file. Example:
bothBoth the code and results of evaluation are included in the exported file. Example:
noneNeither the code nor the results of evaluation is included in the exported file. Whether the code is evaluated at all depends on other options. Example: