以下是通达信低位关注买入副图/选股预警源码

选股预警源码：

 买入信号:IF(CROSS(3*SMA((CLOSE-LLV(LOW,21))/(HHV(HIGH,21)-LLV(LOW,21))*100,5,1)-2*SMA(SMA((CLOSE-LLV(LOW,21))/(HHV(HIGH,21)-LLV(LOW,21))*100,5,1),3,1),10),70,0);