N:=9; RSV1:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100; K:SMA(RSV1,3,1); 超卖:max(k,20); RSV:=(CLOSE-LLV(LOW,n))/(HHV(HIGH,n)-LLV(LOW,n))*100; 高点:LLVBARS(rsv,n),colorred; 低点:HHVBARS(rsv,n),colorgreen;
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