通达信MACD底顶背离及选股指标（MACD类）指标公式

买卖信号

**买入信号：** - 底背离：REF(CLOSE,A1+1)>CLOSE AND DIFF>REF(DIFF,A1+1) AND CROSS(DIFF,DEA) - 出现位置：DIFF上穿DEA时，且满足底背离条件（前期低点高于当前低点，但DIFF低点高于前期DIFF低点） - 文字提示：DRAWTEXT(底背离,0.12,' 底背离') - 画线提示：底背离位置绘制紫色水平线 **卖出信号：** - 顶背离：REF(CLOSE,A2+1)<CLOSE AND REF(DIFF,A2+1)>DIFF AND CROSS(DEA,DIFF) - 出现位置：DEA上穿DIFF时，且满足顶背离条件（前期高点低于当前高点，但DIFF高点低于前期DIFF高点） - 画线提示：顶背位置绘制绿色水平线

用法

1. **适用场景**：用于判断MACD指标的背离信号，适合中长线趋势交易 2. **底背离买入**：当价格创出新低但MACD指标未创新低，形成底背离时，是潜在买入信号 3. **顶背离卖出**：当价格创出新高但MACD指标未创新高，形成顶背离时，是潜在卖出信号 4. **注意事项**： - 背离信号需要结合其他分析手段确认 - 底背离出现后可能还有反复，建议分批建仓 - 适用于趋势行情，在震荡行情中可能产生假信号 - 该公式包含选股公式部分，可用于条件选股

公式源码

DIFF:EMA(CLOSE,12)-EMA(CLOSE,27);
DEA:EMA(DIFF,9);
macd:2*(DIFF-DEA), COLORSTICK,LINETHICK2;
A1:=BARSLAST(REF(crOSS(DIFF,DEA),1));
底背离:=REF(CLOSE,A1+1)>CLOSE AND DIFF>REF(DIFF,A1+1) AND CROSS(DIFF,DEA);
STICKLINE(底背离,0,0.03,6,0),COLOR00FF00;
底背:DRAWLINE(A1=0,DEA,底背离,DEA,0),COLORFF00FF,LINETHICK4;
DRAWTEXT(底背离,0.12,' 底背离'),COLORFF00FF;
A2:=BARSLAST(REF(CROSS(DEA,DIFF),1));
顶背离:=REF(CLOSE,A2+1)<CLOSE AND REF(DIFF,A2+1)>DIFF AND CROSS(DEA,DIFF);
顶背:DRAWLINE(A2=0,DEA,顶背离,DEA,0),COLORGREEN,LINETHICK4;
{
选股公式:
DIFF:=EMA(CLOSE,12)-EMA(CLOSE,27);
DEA:=EMA(DIFF,9);
MACD:=2*(DIFF-DEA), COLORSTICK,LINETHICK2;
A1:=BARSLAST(REF(CROSS(DIFF,DEA),1));
底背离:REF(CLOSE,A1+1)>CLOSE AND DIFF>REF(DIFF,A1+1) AND CROSS(DIFF,DEA);
}