【通达信】底初选股指标公式跌停的股票能卖吗

VAR1:=(MA(CLOSE,80)-MA(CLOSE,13)/3);
VAR2:=( MA((CLOSE-VAR1)/VAR1,1));
MMA:=EMA(VAR2,12)*0.7;
MMB:=EMA(VAR2,3);
CROSS(0, LLV(MMB-MMA,12));