同花顺指标――买卖特灵（副图）
买卖特灵副图源码：
趋势线: 3*SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1)-2*SMA(SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1),3,1),colorblue;
见底信号: 10,colorred;
买点准备: IF(趋势线<=10,50,0),colorgreen;
买入时间: IF(CROSS(趋势线,见底信号),100,0),coloryellow;
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