{连结MACD相邻红绿柱区间内高低点画趋势线 通达信}
DIFF:=EMA(CLOSE,12)-EMA(CLOSE,26);
DEA:=EMA(DIFF,9);
N1:=BARSLAST(CROSS(DIFF,DEA))+1;{最近一次满足条件DIFF上穿DEA的K线到当前的距离}
N2:=BARSLAST(CROSS(DEA,DIFF))+1;{最近一次满足条件DIFF下穿DEA的K线到当前的距离}
{当前是DIFF>DEA的状态,连结最近两个DIFF>DEA区间(不包含当前区间)内最高点的趋势线}
A1:=BACKSET(ISLASTBAR && N1