公式告诉我们在这个位置是可以建仓滴，行情怎么走那要看市场的，别把简单的事想复杂，复杂的事想简单。
不知道有木有未来函数，
运气好的能骑牛，不好的别跳楼设好止损就行了。

A:=LLV(L,34);
XD:=SMA(ABS(L-REF(L,1)),34,1);
CD:=SMA(MAX(L-REF(L,1),0),34,2);
收盘买:=-(EMA(IF(L<=A,XD/CD,-3),9));
抢反弹:收盘买<0 AND 收盘买>REF(收盘买,1) AND REF(EVERY(收盘买<REF(收盘买,1),3),1),COLORYELLOW;
RSV:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
K:=SMA(RSV,3,1);
D:=SMA(K,3,1);
J:=3*K-2*D;
X2:=LLV(J,2)=LLV(J,8);
B:CROSS(J,REF(J+0.01,1)) AND X2 AND J<20 AND 收盘买<0 AND 收盘买>REF(收盘买,1),COLORRED;
B2:CROSS(J,REF(J+0.01,1)) AND X2 AND J<20,COLORMAGENTA;DRAWTEXT(B2,0.35,'★关注★'),COLOR109090;
B3:=抢反弹 AND REF(B2,1);DRAWBAND(B2,RGB(255,100,30),B3,RGB(255,20,20));
DRAWTEXT(B3,0.45,'★不买更后悔★');
B4:=抢反弹 AND REF(B2,1)OR REF(B2,2);DRAWTEXT(B3,0.35,'★反弹确认★'),COLORYELLOW;
STICKLINE(B3,0,0.43,2,0),COLORYELLOW;
STICKLINE(B,0,0.43,2,0),COLORRED;
DRAWTEXT(B,0.35,'★不买后悔★'),COLORRED;
B8:=REF((CROSS(J,REF(J+0.01,1)) AND X2 AND J<20),2) AND 抢反弹;DRAWTEXT(B8,0.8,'★阶段底部确认★'),COLORYELLOW;
DRAWBAND(B2,RGB(255,100,50),B8,RGB(255,30,30));
STICKLINE(B2,0,0.36,2,0),COLOR109090;
STICKLINE(B2 AND REF(PSY<=10,1),0,0.68,2,0),COLOR801090;DRAWTEXT(B2 AND REF(PSY<=10,1),0.68,'★买点★'),COLOR801090;
STICKLINE(B2 AND H>O AND C=H AND L<O AND  L>REF(L,1)  AND C>O AND REF((C<O),1),0,0.18,2,0)COLOR801090;
DRAWTEXT(B2 AND H>O AND C=H AND L<O AND  L>REF(L,1)  AND C>O AND REF((C<O),1),0.18,'阶段底部低吸★'),COLOR801090;
STICKLINE(B2 AND REF(RSI<=20,1),0,0.10,2,0),COLOR900000;