M1:=5;
M2:=30;
M3:=70;
M4:=90;
现价: EMA(CLOSE,2),COLORYELLOW;
底部: COST(M1),COLORBLUE,LINETHICK2;
买入: COST(M2),COLORRED,LINETHICK2;
卖出: COST(M3),COLORGREEN,LINETHICK2;
顶部: COST(M4),COLORFFFF33,LINETHIC