通达信“主力进场”副图源码如下：

VAR1:=REF((LOW+OPEN+CLOSE+HIGH)/4,1);
 VAR2:=SMA(ABS(LOW-VAR1),13,1)/SMA(MAX(LOW-VAR1,0),10,1);
 VAR3:=EMA(VAR2,10);
 VAR4:=LLV(LOW,33);
 VAR5:=EMA(IF(LOW<=VAR4,VAR3,0),3);
主力进场:IF(VAR5>REF(VAR5,1),VAR5,0),COLORRED;
 STICKLINE(VAR5>REF(VAR5,1),0,VAR5,3,0 ),COLORRED;
洗盘:IF(VAR5<REF(VAR5,1),VAR5,0),COLORGREEN;

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VAR1:=REF((LOW+OPEN+CLOSE+HIGH)/4,1);
 VAR2:=SMA(ABS(LOW-VAR1),13,1)/SMA(MAX(LOW-VAR1,0),10,1);
 VAR3:=EMA(VAR2,10);
 VAR4:=LLV(LOW,33);
 VAR5:=EMA(IF(LOW<=VAR4,VAR3,0),3);
主力进场:VAR5>REF(VAR5,1);