板后双枪缩量源码：
REF(CLOSE,2)/REF(CLOSE,3)>1.099 AND CLOSE>=(REF(CLOSE,2)+REF(OPEN,2))/2 AND REF(CLOSE,1)>=(REF(CLOSE,2)+REF(OPEN,2))/2 AND COUNT(VOL<REF(VOL,1) AND ((HIGH-MAX(CLOSE,OPEN))/ABS(OPEN-CLOSE)>=1 OR (MIN(OPEN,CLOSE)-LOW)/ABS(OPEN-CLOSE)>=1),2)=2;
