How do I change button text content?

Code (CSharp):

1.         GameObject canvas = GameObject.Find("Canvas");
2.         Button[] btn = canvas.GetComponentsInChildren<Button>();
3.  
4.         foreach (Button b in btn)
5.         {
6.             Text txt = b.GetComponent<Text>();
7.             if (txt)
8.             {
9.                 txt.text = "opponent round";
10.             }
11.         }

it does not work !!! please help me~~~

 

i want change button's text

 

The problem is that the text is not on the button itself but it a child object of the button.
That way your "b.GetComponent<Text>();" will get no text at all.
Change line 6 to

Code (CSharp):

1. Text txt = b.GetComponentInChildren<Text>();

That way you get the text component on the child.

 

Thank you very much ,you help me a lot~~~