一个通达信自带的指标 买卖区间

买线:EMA(C,2);卖线:EMA(SLOPE(C,21)*20C,42);STICKLINE(买线卖线,REFDATE(HHV(H,0),DATE),REFDATE(LLV(L,0),DATE),6,0),COLOR001050;STICKLINE(买线卖线,REFDATE(HHV(H,0),DATE),REFDATE(LLV(L,0),DATE),6,0),COLOR404050;DRAWKLINE(H,O,L,C);指导:EMA((EMA(CLOSE,4)EMA(CLOSE,6)EMA(CLOSE,12)EMA(CLOSE,24))/4,2);界:MA(CLOSE,27);B买:IF(CROSS(指导,界) OR CROSS(买线,卖线),C,DRAWNULL),COLORMAGENTA,NODRAW;持仓:IF(买线卖线,C,DRAWNULL),COLORRED,NODRAW;S卖:IF(CROSS(界,指导) OR CROSS(卖线,买线),C,DRAWNULL),COLORLIGRAY,NODRAW;空仓:IF(买线卖线,C,DRAWNULL),COLORGREEN,NODRAW;DRAWICON(CROSS(买线,卖线),L,1);DRAWICON(CROSS(卖线,买线),H,2);