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);
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