买卖信号
1. **花开短买（买入信号）**：CROSS(J,1) AND DLX1>REF(DLX1,1)，即J线从下向上穿越1且DLX1上升时买入，输出黄色信号 2. **预警（买入信号）**：DDX>0 AND MA(V,5)>MA(MA(V,5),5) AND CROSS(DDX1,DDX2)，即DDX为正、5日均量线上穿其5日均线、DDX1上穿DDX2时触发预警，输出★信号 3. **顶背离（卖出信号）**：REF(CLOSE,A1+1)<CLOSE AND REF(RSI1,A1+1)>RSI1 AND CC，股价创新低但RSI1未创新低时显示红色顶背离 4. **底背离（买入信号）**：REF(CLOSE,A2+1)>CLOSE AND REF(RSI1,A2+1)<RSI1 AND CC2，股价创新高但RSI1未创新高时显示青色底背离 5. **天:=COUNT(DDX>0,5)（辅助信号）**：统计5天内DDX>0的天数，红色显示市场多头状态
用法
1. **适用场景**：主要用于资金流向分析，结合DDX（买卖差）判断主力资金动向 2. **核心指标**：N日内净流入（5日周期）用于衡量资金流入流出情况 3. **买入时机**：花开短买信号出现时可考虑买入；底背离信号出现是买入提示；预警信号出现是较强的买入确认 4. **卖出时机**：顶背离信号出现时考虑卖出或减仓 5. **注意事项**：DDX为正表示当日买方力量较强；STICKLINE显示DDX红绿柱状图，红色为买方主导；该指标包含未来函数BACKSET和FILTER，背离信号可能存在漂移 6. **配合使用**：可结合成交量均线交叉、DDX1与DDX2的金叉
公式源码
WJ:=(H+L+C)/3;
V1:=IF(H=L,1,H-MAX(O,C));
V2:=IF(H=L,1,MAX(C,O)-WJ);
V3:=IF(H=L,1,MIN(O,C)-L);
V4:=IF(H=L,1,WJ-MIN(C,O));
V5:=vol/IF(H=L,4,H-L);
V6:=(V1*V5);
V7:=(V2*V5);
V8:=(V3*V5);
V9:=(V4*V5);
买盘:=(V9+V8);
卖盘:=(V6+V7);
买卖差:=买盘-卖盘;
ddx:=买卖差;
DX:=MA(买卖差,5)*20;
N:=5;
M:=13;
N日内净流入:=SUM(DDX,N)*3;
流入:=IF(N日内净流入>REF(N日内净流入,1),N日内净流入,DRAWNULL);
DRAWBAND(N日内净流入,RGB(100,100,100),0,RGB(0,100,150));
{波段转向}{5天3%}
DLX1:=SMA(DX,3,1),LINETHICK,COLORWHITE;
RSV:=((C-LLV(L,6))/(HHV(H,6)-LLV(L,6)))*100;
K:=POW(SMA(RSV,2,1),5)/POW(10,8);
D:=POW(SMA(RSV,2,1),5)/POW(10,10);
J:=(K+ D)/2;
花开短买:IF(crOSS(J,1),1,0) AND DLX1>REF(DLX1,1),COLORYELLOW;
IF(花开短买,150000,DRAWNULL),CROSSDOT,LINETHICK6,COLORFF33FF;
IF(花开短买,150000,DRAWNULL),POINTDOT,LINETHICK4,COLOR00CCFF;
{IF(macd>=0 AND REF(MACD,1)<0,1,DRAWNULL),CROSSDOT,LINETHICK6,COLORFF33FF;
IF(MACD>=0 AND REF(MACD,1)<0,1,DRAWNULL),POINTDOT,LINETHICK4,COLOR00CCFF;}
rsi1:=N日内净流入;
AA:=REF(RSI1,N)=HHV(RSI1,2*N+1);
BB:=BACKSET(AA,N+1);
CC:=FILTER(BB,N) AND RSI1=HHV(RSI1,N+1);
A1:=BARSLAST(REF(CC,1));
顶背离:REF(CLOSE,A1+1)<CLOSE AND REF(RSI1,A1+1)>RSI1 AND CC,COLORRED;
DRAWLINE(CC,RSI1,FILTER(顶背离>0,5),RSI1,0),COLORRED;
AA2:=REF(RSI1,N)=LLV(RSI1,2*N+1);
BB2:=BACKSET(AA2,N+1);
CC2:=FILTER(BB2,N) AND RSI1=LLV(RSI1,N+1);
A2:=BARSLAST(REF(CC2,1));
底背离:REF(CLOSE,A2+1)>CLOSE AND REF(RSI1,A2+1)<RSI1 AND CC2,COLORCYAN;
DRAWLINE(CC2,RSI1,FILTER(底背离>0,5),RSI1,0),COLORCYAN;
STICKLINE(DDX<0,0,DDX,4,0),COLORFF6600;
STICKLINE(DDX<0,0,DDX,3,0),COLORFF9900;
STICKLINE(DDX<0,0,DDX,1.5,0),COLORFFCC00;
STICKLINE(DDX<0,0,DDX,0,0),COLOR66CCFF;
STICKLINE(DDX>0,0,DDX,4,0),COLOR000099;
STICKLINE(DDX>0,0,DDX,3,0),COLOR0000CC;
STICKLINE(DDX>0,0,DDX,1.5,0),COLOR0000FF;
STICKLINE(DDX>0,0,DDX,0,0),COLORCC66FF;
DDX1:SMA(DX,3,1),COLORFFFFFF;
DDX2:SMA(DDX1,3,1),COLOR00FFFF;
DDX3:(5*DDX2+4*REF(DDX2,1)+3*REF(DDX2,2)+2*REF(DDX2,3)+REF(DDX2,4))/15;
预警:DDX>0 AND MA(V,5)>MA(MA(V,5),5) AND CROSS(DDX1,DDX2),LINETHICK;
天:=COUNT(DDX>0,5),COLORRED;
DRAWTEXT(预警,DDX*1.06,'★'),LINETHICK3,COLOR00FFFF;