利用看门狗中断，实现小灯闪烁，但是小灯居然没动静，哎，苦逼了
#include <msp430x14x.h>
#define uchar unsigned char#define uint  unsigned int
uchar temp = 0;
void main(){    WDTCTL=WDTPW+WDTHOLD;    BCSCTL1 |= XTS;    do  {    IFG1 &= ~OFIFG;        for(uchar temp=0xFF;temp>0;temp--);  }  while((IFG1&OFIFG)!=0);    WDTCTL = WDT_ADLY_1000;    IE1 |= WDtiE;    P2DIR = 0xFF;  P2OUT = temp;    _EINT();    while(1)  {    LPM3;        _NOP();  }    }
#pragma vector = WDT_VECTOR__interrupt void watchdog(){   temp = ~temp;  P2OUT =  temp;}