倒N副图（通达信公式 副图 源码 测试图）

 {倒N副图}

X_1:=IF(LOW>=REF(LOW,1) AND REF(LOW,1)<=REF(LOW,2),REF(LOW,1),REF(REF(LOW,1),BARSLAST(LOW>=REF(LOW,1) AND REF(LOW,1)<=REF(LOW,2))));

REF(LOW,1)>X_1 AND LOW<X_1 AND VOL>1000 AND CLOSE<REF(CLOSE,1);

 

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