M:=5; 趋势线: 3*SMA((CLOSE-LLV(LOW,M))/(HHV(HIGH,M)-LLV(LOW,M))*100,5,1)-2*SMA(SMA((CLOSE-LLV(LOW,M))/(HHV(HIGH,M)-LLV(LOW,M))*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);