将趋势低位金叉做一个预警

编写要求：

源码80,COLOR996699; 20,COLORGREEN; 10,COLORCC6633,LINETHICK2; 90,COLOR9966FF,LINETHICK2; A:=MA(-100*(HHV(HIGH,34)-CLOSE)/(HHV(HIGH,34)-LLV(LOW,34)),19); B:=-100*(HHV(HIGH,14)-CLOSE)/(HHV(HIGH,14)-LLV(LOW,14)); D:=EMA(-100*(HHV(HIGH,34)-CLOSE)/(HHV(HIGH,34)-LLV(LOW,34)),4); 长期线:A+100,COLOR9900FF; 短期线:B+100,COLOR888888; 中期线:D+100,COLORYELLOW,LINETHICK2; 见顶:=((REF(中期线,1)>85 AND REF(短期线,1)>85 AND REF(长期线,1)>65) AND CROSS(长期线,短期线)); 顶部区域:(中期线80) AND (REF(短期线,1)>95 OR REF(短期线,2)>95 ) AND 长期线>60 AND 短期线<83.5 AND 短期线<中期线 AND 短期线<长期线+4,COLORGREEN; 顶部:=FILTER(顶部区域,4); STICKLINE( {见顶 OR} 顶部,99,103,20,1 ),COLORRED,LINETHICK2; 底部区域:(长期线<12 AND 中期线<8 AND (短期线<7.2 OR REF(短期线,1)<5) AND (中期线>REF(中期线,1) OR 短期线>REF(短期线,1))) OR (长期线<8 AND 中期线<7 AND 短期线<15 AND 短期线>REF(短期线,1)) OR (长期线<10 AND 中期线<7 AND 短期线<1) ,COLORGREEN; STICKLINE( 底部区域,-4,0,22,0 ),COLORGREEN; 低位金叉:50*(长期线<15 AND REF(长期线,1)<15 AND 中期线<18 AND 短期线>REF(短期线,1) AND CROSS(短期线,长期线) AND 短期线>中期线 AND (REF(短期线,1)<5 OR REF(短期线,2)<5 ) AND (中期线>=长期线 OR REF( 短期线,1)<1 )),COLORRED; STICKLINE( 低位金叉,0,5,11,0 ),COLORRED;

解答：

?A:=MA(-100*(HHV(HIGH,34)-CLOSE)/(HHV(HIGH,34)-LLV(LOW,34)),19);

B:=-100*(HHV(HIGH,14)-CLOSE)/(HHV(HIGH,14)-LLV(LOW,14));