LC:=REF(CLOSE,1);
rsi1:=SMA(MAX(CLOSE-LC,0),6,1)/SMA(Abs(CLOSE-LC),6,1)*100;
RSI2:=SMA(MAX(CLOSE-LC,0),12,1)/SMA(ABS(CLOSE-LC),12,1)*100;
A3:=BArslAST(REF(crOSS(RSI1,RSI2),1));
B3:=REF(C,A3+1)>C AND REF(RSI1,A3+1)<RSI1 AND CROSS(RSI1,RSI2);
RSI底背:B3>0;