跪求高手老师将通达信的主图指标公式改为选股公式，万分感激：

Question

N:=20;M:=32;P1:=80;P2:=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<HIGH,卖出,MAX(卖出,MAX(OPEN,CLOSE)),3,0),COLORGREEN;
STICKLINE(卖出>MIN(C,O) AND 卖出<MAX(C,O),卖出,MAX(OPEN,CLOSE),3,0),COLORGREEN;
STICKLINE(卖出>LOW AND 卖出<HIGH,卖出,HIGH,0,0),COLORGREEN;
STICKLINE(卖出<LOW,OPEN,CLOSE,3,0),COLORGREEN;
STICKLINE(卖出<LOW,HIGH,LOW,0,0),COLORGREEN;
STICKLINE(买入>LOW AND 买入<HIGH,买入,MIN(MIN(OPEN,CLOSE),买入),3,0),COLORMAGENTA;
STICKLINE(买入>MIN(C,O) AND 买入<MAX(C,O),买入,MIN(OPEN,CLOSE),3,0),COLORMAGENTA;
STICKLINE(买入>LOW AND 买入<HIGH,买入,LOW,0,0),COLORMAGENTA;
STICKLINE(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,'买'),COLORRED,LINETHICK2;
DRAWTEXT(CROSS(卖出,HIGH),HIGH*1.02,'卖'),COLORGREEN;

选股条件：当日股价碰到粉色的买入线。买入:XMA(VAR1,M)*(1-P2/1000),COLORMAGENTA,LINETHICK2;

Answer 1

有未来函数.最好别用来做选股

Answer 2

N:=20;
M:=32;
P1:=80;
P2:=100;
VAR1:=(C+H+O+L)/4;
卖出:=XMA(VAR1,N)*(1+P1/1000);
买入:=XMA(VAR1,M)*(1-P2/1000);
CROSS(LOW,买入);