说明：不易钝化，买入、卖出有变色提示，操作要领：同色进，杂色慎，异色出.

RSV:=(CLOSE-LLV(LOW,25))/(HHV(HIGH,25)-LLV(LOW,25))*100;
K:SMA(RSV,5,1);
D:SMA(K,5,1);
J:3*K-2*D;
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partline(K,K>=ref(K,1),rgb(255,0,0),K partline(D,D>=ref(D,1),rgb(255,0,0),D partline(J,J>=ref(J,1),rgb(255,0,0),J