How to jump to the controller method for the a tag in the template

Question

<a href="??? ">Write a diary</a>

? ? ? What code should I write to jump to the add method of the Index controller?

I’m a newbie and can’t understand the manual. Please give me some advice

Answer 1

Thank you, done

Answer 2

<a href="{:url("index/add")}">Write a diary</a>