将“短线买进”中的“买进”做个选股

编写要求：

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(CROSS(散户,庄家) AND 散户<50 AND 29<散户,L-0.05,'短进'),COLORMAGENTA; DRAWTEXT(CROSS(庄家,散户) AND 散户>40 AND 71>散户,H+0.05,'短出'),COLORGREEN; DRAWTEXT(CROSS(散户,庄家) AND 散户<30,L-0.05,'低吸'),COLORWHITE; DRAWTEXT(CROSS(庄家,散户) AND 散户>70,H+0.05,'高减'),COLORYELLOW; 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); DRAWTEXT(VARA>0 AND CROSS(VARC,VARA),H+0.05,'中线逃！'),COLORYELLOW; 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;

解答：

?VAR2:=(2*CLOSE+HIGH+LOW)/4;

VAR3:=IF(YEAR>=2099 AND MONTH>2,0,1);