N:=20;P:=2; 顶:1,COLORYELLOW; 底:0,COLORRED; VAR1:=MA(CLOSE,N); VAR2:=VAR1+P*STD(CLOSE,N); VAR3:=VAR1-P*STD(CLOSE,N); 布林趋势: (CLOSE-VAR3)/(VAR2-VAR3); DRAWICON(CROSS(布林趋势,0),0,1); DRAWICON(CROSS(1,布林趋势),1,2);
