Is there a id for each answer ? and is it in the functions defined ,which one ?thx
Of course each answer has unique ID and you can find in a_list_item($a_item) where $a_item holds post id so you can use in that function something like below
Welcome to the Q&A site for Question2Answer.
If you have a question about Q2A, please ask in English.
To report a bug, please create a new issue on Github or ask a question here with the bug tag.
If you just want to try Q2A, please use the demo site.