做个股价跌到买入线的选股公式

编写要求：

N 1 100 20 M 1 100 32 P1 1 100 80 P2 1 100 100 VAR1:=(C+H+O+L)/4; 卖出:XMA(VAR1,N)*(1+P1/1000),COLORGREEN,LINETHICK2; 买入:XMA(VAR1,M)*(1-P2/1000),COLORMAGENTA,LINETHICK2; 幅度:100*(卖出-买入)/买入,NODRAW; MA1:=MA(VAR1,3); STICKLINE(卖出>LOW AND 卖出MIN(C,O) AND 卖出LOW AND 卖出LOW AND 买入MIN(C,O) AND 买入LOW AND 买入HIGH,OPEN,CLOSE,3,0),COLORMAGENTA; STICKLINE(买入>HIGH,HIGH,LOW,0,0),COLORMAGENTA; DRAWTEXT(CROSS(LOW,买入),LOW*0.95,'Ｂ'),COLORRED,LINETHICK2; DRAWTEXT(CROSS(卖出,HIGH),HIGH*1.02,'Ｓ'),COLORGREEN; AA1:=AMOUNT/V; BB1:=L1.2; DD1:=L

解答：

?VAR1:=(C+H+O+L)/4;

买入:=XMA(VAR1,32)*(1-100/1000);