波段线:=5*SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1)-3*SMA(SMA
((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1),3,1)-SMA(SMA(SMA
((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1),3,1),2,1),LINETHICK2,COLORRED;
底部买:=LLV(波段线,2)=LLV(波段线,8);
买进:IF(crOSS(波段线,REF(波段线+0.01,1)) AND 底部买 AND 波段线<0,30,5);