通达信底部来临公式，至今见到最准公式无未来

{砸锅卖田}
趋线:(CLOSE-MA(CLOSE,40))/MA(CLOSE,40)*100,COLORAABBDD,NODRAW;
 AA:=((REF(趋线,1)<REF(趋线,2) AND 趋线<-30) AND 趋线>=REF(趋线,1)) OR (REF(CROSS(-30,趋线),1) AND CROSS(趋线,-30)) OR 趋线=-30;
卖田:=IF(AA,65,12),COLORYELLOW,LINETHICK2;
 BB:=((REF(趋线,1)<REF(趋线,2) AND 趋线<-20 AND 趋线>-25) AND 趋线>=REF(趋线,1)) OR (REF(CROSS(-20,趋线),1) AND CROSS(趋线,-20));
见底:=IF(BB,58,12),COLORRED,LINETHICK2;
 CC:=((REF(趋线,1)<REF(趋线,2) AND 趋线<-25 AND 趋线>-30) AND 趋线>=REF(趋线,1)) OR (REF(CROSS(-25,趋线),1) AND CROSS(趋线,-25));
机会:IF(CC,40,12),COLOR00FF00;

快到底:IF(CROSS(-20,趋线),75,12),LINETHICK2,COLORF0F000;
 DRAWTEXT(CROSS(-20,趋线),80,'快到底'),COLORF0F000;
来临:IF(CROSS(-25,趋线),80,12),LINETHICK2,COLORF00FF0;
 DRAWTEXT(CROSS(-25,趋线),90,'来临'),COLORF00FF0;
砸锅:IF(CROSS(-30,趋线),55,12),LINETHICK2,COLORWHITE;
 DRAWTEXT(CROSS(-30,趋线),55,'砸锅'),COLORWHITE;

{临界点}
C1:=((MA(C,30)-L)/MA(C,60))*200;
临界点:IF(C1>30,30,12),LINETHICK2,COLORRED;