A:=(3C+L+O+H)/6;
X:=(20A+19REF(A,1)+18REF(A,2)+17REF(A,3)+16REF(A,4)+15REF(A,5)+
14REF(A,6)+13REF(A,7)+12REF(A,8)+11REF(A,9)+10REF(A,10)+9REF(A,11)+8REF(A,12)
+7REF(A,13)+6REF(A,14)+5REF(A,15)+4REF(A,16)+3REF(A,17)+2REF(A,18)+
REF(A,20))/210;
中线:=EMA(X,13);
追涨A:IF(crOSS(C,A3) AND C 中线,100,0);