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);
见底信号:10;
买点准备:IF(趋势线<=10,50,0);
买入时间:IF(CROSS(趋势线,见底信号),100,0);

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