指标长期由前期的长期在低位出现绿柱变成，开始出现红柱。如果此时个股走势止跌企稳，可以积极关注。
n:=5;
TB:=IF(HIGH>REF(CLOSE,1),HIGH-REF(CLOSE,1)+CLOSE-LOW,CLOSE-LOW);
TS:=IF(REF(CLOSE,1)>LOW,REF(CLOSE,1)-LOW+HIGH-CLOSE,HIGH-CLOSE);
vol_:=(TB-TS)*VOL/(TB+TS)/10000;
VOL_0:=DMA(VOL_,0.1);
VOL_1:=DMA(VOL_,0.05);
SHORT:VOL_0-VOL_1,COLORSTICK;
MA1:MA(SHORT,N);
