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公式简介：
下面这个指标其他的用法我不敢妄加评论，对于波段操作的把握他是非常到位的，它就是文华主图指标波段之子。只见图中两条看似轨道一样的均线，让人惊呼“神指标”，尽管我并不理解为什么作者要搞这么宽，但是每次当商品价格或指数价格高于轨道上方时做多，低于双轨下方做多，均能获益出局，如图：
波段之子买卖公式
S:=CROSS(CLOSE,EMA2(HIGH,30));
X:=CROSS(EMA2(LOW,30),CLOSE);
WS:=BARSLAST(S)+1;
WX:=BARSLAST(X)+1;
SS:=CROSS(SUM(S,WX),0.5);
XX:=CROSS(SUM(X,WS),0.5);
STICKLINE(CLOSE>EMA2(HIGH,30),EMA2(HIGH,30),EMA2(LOW,30),COLORMAGENTA,1);
STICKLINE(CLOSE<EMA2(LOW,30),EMA2(LOW,30),EMA2(HIGH,30),COLORBLUE,1);
STICKLINE(CLOSE>EMA2(HIGH,150),EMA2(HIGH,150),EMA2(LOW,150),COLORLIGHTRED,1);
STICKLINE(CLOSE<EMA2(LOW,150),EMA2(LOW,150),EMA2(HIGH,150),COLORLIGHTGREEN,1);
PARTLINE(CLOSE>EMA2(HIGH,30),EMA2(HIGH,30),COLORMAGENTA);
PARTLINE(CLOSE<EMA2(HIGH,30),EMA2(HIGH,30),COLORBLUE);
PARTLINE(CLOSE>EMA2(LOW,30),EMA2(LOW,30),COLORMAGENTA);
PARTLINE(CLOSE<EMA2(LOW,30),EMA2(LOW,30),COLORBLUE);
PARTLINE(CLOSE>EMA2(HIGH,150),EMA2(HIGH,150),COLORLIGHTRED);
PARTLINE(CLOSE<EMA2(HIGH,150),EMA2(HIGH,150),COLORLIGHTGREEN);
PARTLINE(CLOSE>EMA2(LOW,150),EMA2(LOW,150),COLORLIGHTRED);
PARTLINE(CLOSE<EMA2(LOW,150),EMA2(LOW,150),COLORLIGHTGREEN);
STICKLINE(OPEN>=CLOSE,CLOSE,OPEN,COLORRED,0);
STICKLINE(CLOSE>=OPEN,CLOSE,OPEN,COLORCYAN,0);
DRAWTEXT(SS,LOW,'买入');
DRAWTEXT(XX,HIGH,'卖出');
我们不难可以发现当价格低于快线轨道时它的色会又由粉变篮，高于时亦反之，当价格低于慢线轨道时它会由红变绿，并且每次都会有“买入”和“卖出”的信号提示，这一点认为还是比较科学的，这款波段之子指标是本人花了很大力气，又经检测和修改才得来的，认为不错的朋友可免费下载，觉得好的给个赞哦
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