MID:=(3*CLOSE+LOW+OPEN+HIGH)/6;:(20*MID+19*REF(MID,1)+18*REF(MID,2)+17*REF(MID,3)+16*REF(MID,4)+15*REF(MID,5)+14*REF(MID,6)+13*REF(MID,7)+12*REF(MID,8)+11*REF(MID,9)+10*REF(MID,10)+9*REF(MID,11)+8*REF(MID,12)+7*REF(MID,13)+6*REF(MID,14)+5*REF(MID,15)+4*REF(MID,16)+3*REF(MID,17)+2*REF(MID,18)+REF(MID,20))/210,NODRAW;安全线:MA(线,11),COLORGRAY,LINESTICK,LINETHICK1;MA20:MA(C,20),NODRAW;重心:=(C+0.618*REF(C,1)+0.382*REF(C,2)+0.236*REF(C,3)+0.146*REF(C,4))/2.382,COLORYELLOW,LINETHICK1;GAO:=HHV(C,60)-LLV(C,