咨詢內容：DIFF : EMA(CLOSE,12) - EMA(CLOSE,26),NODRAW;//短周期與長周期的收盤價的指數平滑移動平均值做差。DEA? : EMA(DIFF,9),NODRAW;//DIFF的M個周期指數平滑移動平均AA:BARSLAST(CROSS(DIFF,DEA)),NODRAW;DD:BARSLAST(CROSSDOWN(DIFF,DEA)),NODRAW;DD1:REF(DD,AA)+AA,NODRAW;ZD:REF(LV(L,DD),AA),NODRAW;YY:REF(BARSLAST(L=LLV(L,DD)),DD)+DD,NODRAW;ZDD:REF(DIFF,YY),NODRAW;BB:BARSLAST(DIFF<REF(DIFF,1) AND DIFF<DEA AND DEA<0),NODRAW;CC:L<ZD AND DIFF>ZDD AND L=LLV(L,DD+1),ICON(0,'ICO72');CC,SELECT;
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金字塔客服：
ICON,SELECT? 函數是什么意思？
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?來源:程序化久久網（ m.weiqiv.net.cn ）
用戶回復：
這個好像是選擇出來的意思 如果去掉會妨礙整體嗎？
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網友回復：DIFF : EMA(CLOSE,12) - EMA(CLOSE,26),NODRAW;DEA? : EMA(DIFF,9),NODRAW;AA:BARSLAST(CROSS(DIFF,DEA)),NODRAW;DD:BARSLAST(cross(DEA,DIFF)),NODRAW;DD1:REF(DD,AA)+AA,NODRAW;ZD:REF(LlV(L,DD),AA),NODRAW;YY:REF(BARSLAST(L=LLV(L,DD)),DD)+DD,NODRAW;ZDD:REF(DIFF,YY),NODRAW;BB:BARSLAST(DIFF<REF(DIFF,1) AND DIFF<DEA AND DEA<0),NODRAW;CC:L<ZD AND DIFF>ZDD AND L=LLV(L,DD+1);
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