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老师能不能做个MACD背离预警

能不能做个MACD背离预警

 

 来源:程序化99网（ WWW.CXH99.COM ）

博易技术人员： DIFF : EMA(CLOSE,12) - EMA(CLOSE,26);
DEA  : EMA(DIFF,9);
MACD : 2*(DIFF-DEA), COLORSTICK;
DRAWTEXT(DIFF<=REF(DIFF,1) AND REF(DIFF,1)>=REF(DIFF,3) AND C>REF(C,2),DIFF,'顶背离');
DRAWTEXT(DIFF>=REF(DIFF,1) AND REF(DIFF,1)<=REF(DIFF,3) AND C<REF(C,2),DIFF,'底背离'); 老师能讲一下怎么使用吗 来源 程序化久久网