测试国赛硬件，软件

#pragma vector=POINT_VECTOR

 __interrupt void P0_IRQ(void)

 {

  if(P0IFG&BUTTON_PUSH_IF_MASK)

  {

   LED8^=1;

   P0IFG&=~BUTTON_PUSH_IF_MASK;

  }

  P0IF=FALSE;

 }