把买入持股指标出现红柱和粉色十字信号改成选股

编写要求：

请老师在出现买入持股红拄和粉色的十字信号时做个选股公式.谢谢. EMA13:=EMA(C,13),COLORWHITE; EMA21:=EMA(C,21),COLORYELLOW; EMA34:=EMA(C,34),COLORFF00FF; EMA60:=MA(C,60),COLORFFCC66; VAR2:=(2*CLOSE+HIGH+LOW)/4; VAR3:=IF(YEAR>=2099 AND MONTH>2,0,1); VAR4:=LLV(LOW,5); VAR5:=HHV(HIGH,4); 散户:=EMA((VAR2-VAR4)/(VAR5-VAR4)*100,4)*VAR3; 庄家:=EMA(0.667*REF(散户,1)+0.333*散户,2)*VAR3; DRAWTEXT(VOL=HHV(VOL,20),C ,'------------------------------------------------------------'),COLOR808080; DRAWTEXT(CROSS(散户,庄家) AND 散户<30,L-0.05,'←低吸'),COLORLIRED; DRAWTEXT(CROSS(庄家,散户) AND 散户>70,H+0.05,'←高抛'),COLORGREEN; DRAWICON(CROSS(散户,庄家) AND 散户<30,L-0.05,1); DRAWICON(CROSS(庄家,散户) AND 散户>70,H+0.05,2); VAR9:=CLOSE-REF(CLOSE,5); VARA:=EMA(EMA(VAR9,5),5)/EMA(EMA(ABS(VAR9),5),5); VARC:=EMA(EMA(VAR9,20),20)/EMA(EMA(ABS(VAR9),20),20); 卖出:=IF(VARA>0 AND CROSS(VARC,VARA),90,100); DRAWICON(卖出<0,H+0.05,2); 买线:=EMA(CLOSE,2); 卖线:=EMA(SLOPE(CLOSE,21)*20+CLOSE,42); B1:IF(CROSS(买线,卖线),L-0.02,DRAWNULL),CROSSDOT,LINETHICK3,COLORMAGENTA; S1:IF(CROSS(80,RSI)*30,H+0.02,DRAWNULL),CROSSDOT,LINETHICK3,COLORYELLOW; VC:=((CLOSE-MA(CLOSE,6))/MA(CLOSE,6)*100+(CLOSE-MA(CLOSE,24))/MA(CLOSE,24)*100+(CLOSE-MA (CLOSE,32))/MA(CLOSE,32)*100)/3; S2:=IF(VC>20 AND FILTER(VC< REF(VC,1),5),H+0.02,DRAWNULL),CIRCLEDOT,LINETHICK3,COLORGREEN; A0:=(L+H+C*2)/4; A1:EMA(A0,14)COLORYELLOW,LINETHICK2; A2:=EMA(A0,25)COLORLIBLUE,LINETHICK2; A1X:=(A1-REF(A1,1))/REF(A1,1)*100,NODRAW; A2X:=(A2-REF(A2,1))/REF(A2,1)*100,NODRAW; 看多:IF(A1X>=0 AND BARSLAST(CROSS(A1X,0))>0,REF((C+O)/2,BARSLAST(CROSS(A1X,0))),DRAWNULL),COLORMAGENTA{,LINETHICK2}; 逃顶:IF(A1X<0 AND BARSLAST(CROSS(0,A1X))>0,REF((C+O)/2,BARSLAST(CROSS(0,A1X))),DRAWNULL),COLORCYAN,{LINETHICK2}; 买入持股:IF(A1X>=0,A1,DRAWNULL)COLORRED,LINETHICK3; 卖出空仓:IF(A1X<0 AND A2X<0,A1,DRAWNULL)COLORGREEN,LINETHICK3; STICKLINE(CROSS(A1X,0),H,L,0,0 ),COLOR9933FF; STICKLINE(CROSS(A1X,0),C,O,3,0 ),COLOR0000CC; STICKLINE(CROSS(A1X,0),C,O,1,0 ),COLOR0033FF; STICKLINE(CROSS(0,A1X),L,H,0,0 ),COLOR66CC33;

解答：

?A0:=(L+H+C*2)/4;?

A1:=EMA(A0,14);?