LC:=REF(CLOSE,1); TEMP1:=maX(CLOSE-LC,0); TEMP2:=Abs(CLOSE-LC); rsi:=SMA(TEMP1,16,1)/SMA(TEMP2,16,1)*100,COLORWHITE; ERSI:=EMA(RSI,2); 选股:crOSS(30,ERSI);