N1:=30;M:=12;Q:=9;DIFF_1:=(EMA(CLOSE,M)-EMA(CLOSE,N1));DEA_1:=EMA(DIFF_1,Q);_1:=2*(DIFF_1-DEA_1);TJ_B1:=(HHV(MACD_1,4)<0>REF(MACD_1,1) AND REF(MACD_1,1)<REF(MACD_1,2) AND REF(MACD_1,2)<REF(MACD_1,3));红箭头买:TJ_B1;