DIFF := EMA(CLOSE,12) – EMA(CLOSE,26);
DEA := EMA(DIFF,9);
MACD:=2*(DIFF-DEA),COLORSTICK;
DRAWCOLORKLINE(DIFF>DEA&&C>=O,COLORRED,1);
DRAWCOLORKLINE(DIFF>DEA&&C<O,COLORRED,0);
DRAWCOLORKLINE(DIFF<DEA&&C>=O,COLORGREEN,1);
DRAWCOLORKLINE(DIFF<DEA&&C<O,COLORGREEN,0);
将红色区间的最高点与绿色区间的最低点循环连接
（来源：文华财经）
