帮忙改成选股公式. 条件:白线上穿红线

FL:=MA(CLOSE,17)+ABS(MA(CLOSE,17)-REF(MA(CLOSE,17),1)),COLORWHITE;
FS:=MA(CLOSE,17)+MA(CLOSE,17)-REF(MA(CLOSE,17),1),COLORWHITE;
BB:IF(MA(CLOSE,17)年线:=EMA(C,250);
A:=BB-(EMA(C,3)-BB),COLORWHITE;
DIFF:EMA((年线-(EMA(C,3)-年线)),5),LINETHICK1;
IF(BB=FS,BB,BB), COLORWHITE,LINETHICK1;
追涨跌破止损: EMA(COST(81),10) COLORRED,LINETHICK1;
牛熊线: EMA(COST(27),120), CIRCLEDOT;

如果可以再加个N日前白线上穿红线.

FS:=MA(CLOSE,17)+MA(CLOSE,17)-REF(MA(CLOSE,17),1);
BB:=IF(MA(CLOSE,17) 追涨跌破止损:= EMA(COST(81),10);
XG:CROSS(BB,追涨跌破止损) OR LAST(BB>追涨跌破止损,7,3);
==============================================
测试成功，原试选中数：5/0.2%；现在选中数：73/3%

za1:=ema(c,25); za2:=ema(za1,45); zb1:=ema(c,65); zb2:=ema(zb1,45); diff:=(za1+zb2)/2; dea:=(za2+zb1)/2; ka0:=(hhv(c,45)-llv(c,45))/45; ka1:=sma(c,3,1); ka2:=sma(c-ka0*3,3,1); ka3:=sma(ka1-ka0*3,3,1); cross(ka2,diff) and (ka2>=ka3)=(diff>=dea); {已测试，复制可直接引用，如果回答满意，请记得给采纳}