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M:=17;
MID:EMA(CLOSE,M);
UPPER:MID+2*STD(CLOSE,M),colorFF;
LOWER:MID-2*STD(CLOSE,M),colorFF0000;
UPPER0:MID+3*STD(CLOSE,M),colorFF;
LOWER0:MID-3*STD(CLOSE,M),colorFF0000;
DRAWICON(HIGH>UPPER0 OR HIGH=UPPER0,HIGH*1.03,'绿宝石');
DRAWICON(LOW<LOWER0 OR LOW=LOWER0,LOW*0.99,'红宝石');
选股:=LOW<LOWER0 OR LOW=LOWER0;
202108211221.jpg
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