通达信上证K线幅图公式

{大盘指数}指数:INDEXC,NODRAW; 涨跌:INDEXC-REF(INDEXC,1), NODRAW;涨幅(%):((INDEXC/REF(INDEXC,1))-1)* 100, NODRAW;大盘:DRAWKLINE(INDEXH,INDEXO,INDEXL,INDEXC); MA5:MA(INDEXC,5),COLORWHITE;MA20:MA(INDEXC,20),COLORMAGENTA;MA60:MA(INDEXC,60),COLORGREEN; ---------------------------------------------------指数:INDEXC,NODRAW; 涨跌:INDEXC-REF(INDEXC,1), NODRAW;涨幅(%):((INDEXC/REF(INDEXC,1))-1)* 100, NODRAW;大盘:DRAWKLINE(INDEXH,INDEXO,INDEXL,INDEXC); MA5:MA(INDEXC,5),COLORWHITE;MA20:MA(INDEXC,20),COLORMAGENTA;MA60:MA(INDEXC,60),COLORGREEN;DRAWTEXT(REFDATE(INDEXC,1100104)=3243.76 AND CURRBARSCOUNT=7,HHV(INDEXH,60),'上证指数');DRAWTEXT(REFDATE(INDEXC,1100104)!=3243.76 AND CURRBARSCOUNT=7,HHV(INDEXH,60),'深证指数');_{{上证指数K线副图指标}}
DRAWKLINE("999999$H","999999$O","999999$L","999999$C");
上证:"999999$C",COLORWHITE,NODRAW;
_±:"999999$C"-REF("999999$C",1),COLORLIGRAY,NODRAW;
五:MA("999999$C",5),COLORWHITE;
十:MA("999999$C",10),COLORYELLOW;
二十:MA("999999$C",20),COLORMAGENTA;
六十:MA("999999$C",60),COLORGREEN;


{大盘指数K线副图指标}
DRAWKLINE(INDEXH,INDEXO,INDEXL,INDEXC);
大盘:INDEXC,COLORWHITE,NODRAW;
±:INDEXC-REF(INDEXC,1),COLORLIGRAY,NODRAW;
沪深:"000300$CLOSE",NODRAW;
_±:"000300$CLOSE"-REF("000300$CLOSE",1),COLORLIGRAY,NODRAW;
五:MA(INDEXC,5),COLORWHITE;
十:MA(INDEXC,10),COLORYELLOW;
三十:MA(INDEXC,30),COLORMAGENTA;
六十:MA(INDEXC,60);

求助：k线图上，副图的大盘指数，如何随个股自动切换？A:=REF(INDEXC,1);

指数:INDEXC,NODRAW;
指数涨幅:IF(A>0,(INDEXC-A)*100/A,0),NODRAW;
DRAWKLINE(INDEXH,INDEXO,INDEXL,INDEXC);