有意思，实际上是89日kdj的J线布林，网上还有一种作法是把布林作为基础，kdj围绕，这个是相反，看起来也不错。
{布林KDJ副图指标}
N:=9;
M1:=3;
M2:=3;
RSV:=(CLOSE-LLV(LOW,N))/(HHV(HIGH,N)-LLV(LOW,N))*100;
K:SMA(RSV,M1,1);
D:SMA(K,M2,1);
J:3*K-2*D;
MID:=MA(CLOSE,20);
UPPER:=MID+2*STD(CLOSE,20);
LOWER:=MID-2*STD(CLOSE,20);
BOLL_UP:UPPER;
BOLL_MID:MID;
BOLL_DN:LOWER;
