SLOPE函数－－-指标交流

看到“请教：如何理解SLOPE函数？”，我在主图试了一下，主要是在波动市中，买卖点太多，所以在网上搜了一下，找到一个相类似的源码。我一向是看均线操作，所以改了一下均线的显示。

{N:1 180 2 ; M 1 180 21}
 VAR1:=EMA(C,N);
 VAR2:=EMA(SLOPE(C,M)*20+C,42);
 VAR3:=CROSS(VAR1,VAR2);
 VAR4:=CROSS(VAR2,VAR1);

MA10:=MA(C,10);
 MA20:=MA(C,20);
 IF(MA10>=MA20,MA20,DRAWNULL),COLORRED;
 IF(MA10<MA20,MA10,DRAWNULL),COLORGREEN;

 DRAWTEXT(VAR3,LOW*0.95,'买'),COLORYELLOW,LINETHICK3;
 DRAWTEXT(VAR4,HIGH*1.028,'卖'),COLORGREEN,LINETHICK3;

STICKLINE(VAR1=VAR2,LOW,HIGH,0,0),COLORRED;
 STICKLINE(VAR1>=VAR2,CLOSE,OPEN,2,0),COLORRED;
 STICKLINE(VAR1>=VAR2,CLOSE,OPEN,2,0),COLORRED;
 STICKLINE(VAR1>=VAR2,CLOSE,OPEN,2,0),COLORRED;
 STICKLINE(VAR1>=VAR2,CLOSE,OPEN,2,0),COLORRED;
 STICKLINE(VAR1<VAR2,CLOSE,OPEN,2,0),COLORGREEN;
 STICKLINE(VAR1<VAR2,CLOSE,OPEN,2,0),COLORGREEN;
 STICKLINE(VAR1<VAR2,CLOSE,OPEN,2,0),COLORGREEN;
 STICKLINE(VAR1<VAR2,CLOSE,OPEN,2,0),COLORGREEN;
 STICKLINE(VAR1<VAR2,LOW,HIGH,0,0),COLORGREEN;