M1:3;MA2=DEVSQ(CLOSE,M1)/M1; //方差MA3:=POW(MA2,0.5); //标准差//UPPER1: CLOSE+2*MA3,colorred;//2倍标准差的点LOWER1: CLOSE-1.5*MA3,colorgreen;//2倍标准差的点//UPPER2: CLOSE+1*MA3,coloryellow;//LOWER2: CLOSE-1*MA3,colorblue;