在主图中只显示当天的融胜轨道线
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编写要求：

源码是融胜轨道的晴天老师的版本：DD:=DMA(CLOSE,ABS((2*CLOSE+HIGH+LOW)/4-MA(CLOSE,20))/MA(CLOSE,20));融上:(1+7/100)*DD,COLORYELLOW;融下:(1-7/100)*DD,COLORYELLOW;融中:(融上+融下)/2,COLORYELLOW;晴上:(1+N/100)*DD,COLORGREEN,DOTLINE;晴下:(1-N/100)*DD,COLORGREEN,DOTLINE;EPPP:=(HIGH+LOW+OPEN+2*CLOSE)/5;DRAWNUMBER(ISLASTBAR,融上,融上),COLOR00FFFF;DRAWNUMBER(ISLASTBAR,融下,融下),COLORFFFF00;DRAWNUMBER(ISLASTBAR,融中,融中),COLOR00FF00;DRAWNUMBER(ISLASTBAR,晴上,晴上),COLOR0000FF;DRAWNUMBER(ISLASTBAR,晴下,晴下),COLORWHITE; 希望修改成只显示当天的轨道线和价格，以前的轨道线不显示。

解答：

 s:=3;

DD:=DMA(CLOSE,ABS((2*CLOSE+HIGH+LOW)/4-MA(CLOSE,20))/MA(CLOSE,20));
融上:(1+7/100)*DD,COLORYELLOW,NODRAW;
融下:(1-7/100)*DD,COLORYELLOW,NODRAW;
融中:(融上+融下)/2,COLORYELLOW,NODRAW;
晴上:(1+N/100)*DD,COLORGREEN,NODRAW;
晴下:(1-N/100)*DD,COLORGREEN,NODRAW;
EPPP:=(HIGH+LOW+OPEN+2*CLOSE)/5;
DRAWNUMBER(ISLASTBAR,融上,融上),COLOR00FFFF;
DRAWNUMBER(ISLASTBAR,融下,融下),COLORFFFF00;
DRAWNUMBER(ISLASTBAR,融中,融中),COLOR00FF00;
DRAWNUMBER(ISLASTBAR,晴上,晴上),COLOR0000FF;
DRAWNUMBER(ISLASTBAR,晴下,晴下),COLORWHITE;  
IF(CURRBARSCOUNT<S,融上,DRAWNULL),COLOR00FFFF;
IF(CURRBARSCOUNT<S,融下,DRAWNULL),COLORFFFF00;
IF(CURRBARSCOUNT<S,融中,DRAWNULL),COLOR00FF00;
IF(CURRBARSCOUNT<S,晴上,DRAWNULL),COLOR0000FF;
IF(CURRBARSCOUNT<S,晴下,DRAWNULL),COLORWHITE;

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