重要~Android

請問各位大大

        我們打完程式給RUN

模擬器上面會出現

               Sorry!

               The application Mybutton

               (process

               com.example.android.button)

               has stopped unexpectedly.

               Piease try again.

可指點我們是哪裡可能輸錯了呢?

感恩嚕!!!