How to programmatically add events to buttons in unity?

Question

Unity

Why, when trying to write like this, debug.log displays the last i of the cycle (and it should output 0,1,2....):

//цикл...
go.transform.Find("btn1").GetComponent<Button>().onClick.AddListener(
                    delegate 
                    {
                        Debug.Log( i );
                    }
);

Answer 1

Try this) should understand that a separate instance of a variable, and not a variable from a loop.
in fact, it simply referred to the cycle variable (area in memory), but the fact that it changes - the delegate did not care.

int currentNum = i;
....
delegate 
                    {

                        Debug.Log(currentNum  );
                    }