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编写要求：

BBI:=(MA(CLOSE,3)+MA(CLOSE,6)+MA(CLOSE,12)+MA(CLOSE,24))/4,COLORWHITE; UPR:=BBI+P*STD(BBI,N),COLORYELLOW; DWN:=BBI-P*STD(BBI,N),COLORFF00FF; A:(UPR-DWN)/DWN

股票网解答：

N:=11;P:=6;

BBI:=(MA(CLOSE,3)+MA(CLOSE,6)+MA(CLOSE,12)+MA(CLOSE,24))/4;

UPR:=BBI+P*STD(BBI,N);

DWN:=BBI-P*STD(BBI,N);

 

A:(UPR-DWN)/DWN<0.03;

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