Compile your own man page

In the past few days, I have compiled a manual page for the functions in my tool library. There are almost no instructions on Chinese websites.
So I searched on Google. There is a tutorial: http://babbage.cs.qc.edu/courses/cs701/Handouts/man_pages.html
The manual page has a fixed format. Just copy one and change it to your own.
No problem. Use Groff-tascii-man <yourpagefile> to test the effect. If OK, you can install it.
There are two installation methods: 1. Put your manpage path into the manpath variable.
2. directly put it in the system man directory.