#include "msp430x14x.h"


int main( void )
{
  WDTCTL = WDTPW + WDTHOLD;
   
  P1IE |=0x01;            //下降沿触发
  P1IES |=0x01;     
  P1IE |=0x02;
  P1IES |=0x02;
  P1IFG &=~0x03;
  P2DIR=0xff;
  _BIS_SR(GIE);
  //while(1);
}
#pragma vector=PORT1_VECTOR
__interrupt void PORT1a (void)
{               
    P2OUT = 0xf0;
    P1IFG=0x00;
}
//本程序现象是下进程序后，没有按键四个灯也点亮了。