通达信、文华、博弈的主图和副图都可以用，显示支撑和压力点，高抛低吸很好用
{多空判势通道}
N:=20;
MID:=MA(CLOSE,N);
UPPER:=MID + 2*STD(CLOSE,N);
LOWER:=MID - 2*STD(CLOSE,N);
UPPER2:=MID + 3*STD(CLOSE,N);
LOWER2:=MID - 3*STD(CLOSE,N);
STICKLINE(C>=O,C,O,3,0),COLORRED;
STICKLINE(C<O,C,O,3,0),COLORGREEN;
STICKLINE(C>=O,O,L,0,0),COLORRED;
STICKLINE(C<O,C,H,0,0),COLORGREEN;
DRAWKLINE(HIGH,OPEN,LOW,CLOSE);
MID,COLORWHITE,LINETHICK2;
UPPER,COLORYELLOW;
LOWER,COLORYELLOW;
UPPER2,COLORCYAN;
LOWER2,COLORCYAN;
