A4:=((C-LLV(L,21))/(HHV(H,21)-LLV(L,21)))*100;
趋势线:(MA(3*SMA(A4,6,1)-2*SMA(SMA(A4,5,1),5,1),2)),COLORGREEN;
看底选股:=CEILING(SMA(SMA(((C-LLV(L,21))/(HHV(H,21)-LLV(L,21)))*100,13,8),13,8))-SMA(((HHV(H,21)-C)/(HHV(H,21)-LLV(L,21)))*100-10,21,8)<-65;
看底:(IF(看底选股,10,0)),COLORWHITE,DOTLINE;
N1:=20;
VAR2:((3 * SMA((((CLOSE - LLV(LOW,N1)) / (HHV(HIGH,N1) - LLV(LOW,N1))) * 100),5,1)) - (2 * SMA(SMA((((CLOSE - LLV(LOW,N1)) / (HHV(HIGH,N1) - LLV(LOW,N1))) * 100),5,1),3,1))),COLORRED;
两线在低位转向时关注，可判断顶底背离。红线较灵敏，不做金叉选股，仅为趋势判断。
