A:=EMA(C,14),colorwhite,LINETHICK1;
B:=(A-REF(A,1))/REF(A,1)*100,NODRAW;
支撑:IF(B>=0,REF(EMA(C,14),BARSLAST(CROSS(B,0))+1),DRAWNULL),colorblue,LINETHICK2;
阻力:IF(B<0,REF(EMA(C,14),BARSLAST(CROSS(0,B))+1),DRAWNULL),colorgreen,LINETHICK2;
