If (Close < LLL And Close[1] >= LLL[1])

       {

           CROSSDOWN_LLL = True;

           Commentary("CROSSDOWN_LLL="+Text(IIF(CROSSDOWN_LLL==True,1,0)));

       }

       Commentary("NthCon(CROSSDOWN_LLL,1)="+Text(NthCon(CROSSDOWN_LLL,1)));

请教下这里为什么下穿正常显示，NthCon函数取得的值却一直为0？