红先锋1:=(CLOSE-LLV(LOW,20))/(HHV(HIGH,20)-LLV(LOW,20))*100;
红先锋2:=SMA(SMA(红先锋1,3,1),3,1)/28.57;
红先锋3:=EMA(红先锋2,5);
红先锋4:=3*红先锋2-2*红先锋3;
红先锋5:=CROSS(红先锋4,红先锋2) AND 红先锋2<2.1 AND C>O;
STICKLINE(红先锋5,100,0,5,0),colorred;
DRAWTEXT(红先锋5,58,'追'),colorred;