主力控盘系统自带，稍做优化！

VAR1:=C-L;
VAR2:=H-L;
VAR3:=C-H;
VAR4:=IF(H>L,(VAR1/VAR2+VAR3/VAR2)*VOL,0);
CYW:=SUM(VAR4,10)/10000;
DRAWBAND(CYW,255,0,RGB(34,139,34));