VARB1:=EMA(100*(C-LLV(LOW,21))/(HHV(H,21)-LLV(LOW,21)),3);VARB2:=CROSS("KDJ.J","KDJ.K") AND CROSS(RSI.RSI1,16);VARB3:=REF(C<O,1) AND C<REF(C,1)*1.04;熊市反弹:FILTER(VARB1<=9 AND VARB2 AND VARB3,5);