多 :( 1*(EMA(c,21) - EMA(c,453)))*10 ,precis1, colorwhite;
空 :(ema(多,55))*1,precis1,coloryellow;
界:(2),precis1,colorcyan;
轴:(0),precis1,colorblue;
tp:=cross(多,界);
tp1:=cross(多,空) AND 空>=0;
DRAWTEXT(TP ,5,'追'),COLORyellow,LINETHICK1;
DRAWTEXT(TP1 ,10,'买'),COLORgreen,LINETHICK1;