把白线下穿黄线做个预警选股
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编写要求：

白线:= 100*(HHV(HIGH,60)-CLOSE)/(HHV(HIGH,60)-LLV(LOW,60));AA3:=(HHV(HIGH,21)-CLOSE)/(HHV(HIGH,21)-LLV(LOW,21))*100-10;AA4:=(CLOSE-LLV(LOW,21))/(HHV(HIGH,21)-LLV(LOW,21))*100;AA5:=SMA(AA4,13,8);黄线:=CEILING(SMA(AA5,13,8)),COLORRED,LINETHICK2;白线1:白线,COLORFFFFFF,LINETHICK1;黄线1:黄线,COLORRED,LINETHICK3;

解答：

 白线:= 100*(HHV(HIGH,60)-CLOSE)/(HHV(HIGH,60)-LLV(LOW,60));

AA4:=(CLOSE-LLV(LOW,21))/(HHV(HIGH,21)-LLV(LOW,21))*100;
AA5:=SMA(AA4,13,8);
黄线:=CEILING(SMA(AA5,13,8));
XG:CROSS(黄线,白线);
 

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