RSV2:=(((CLOSE - LLV(LOW,9)) / (HHV(HIGH,9) - LLV(LOW,9))) * 100); K2:=SMA(RSV2,3,1); D2:=Sma(K2,3,1); J2:=3*K2-2*D2; 买入时机:IF(crOSS(J2,3),10,0);