TAG：
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),COLORRED,LINETHICK2;
见底信号: 10,LINETHICK1,COLOR0000FF;
买点准备: IF(趋势线<=10,50,0),LINETHICK2;
买入时间: IF(CROSS(趋势线,见底信号),100,0),COLORGREEN,LINETHICK2;
