X1:=(3*C+H+L+O)/6; X2:=EMA(X1,10); X3:=REF(X2,1); VAR1:=INDEXC; VAR11:=EMA(CLOSE,8); 短买:IF(crOSS((VAR11-LLV(VAR1,4))/(HHV(VAR11,4)-LLV (VAR11,4))*4*25,87.5) AND VAR1<40,87,0) AND X2>X3;