X_3:=(3CLOSE+OPEN+LOW+HIGH)/6;
X_4:=(20X_3+19REF(X_3,1)+18REF(X_3,2)+17REF(X_3,3)+16REF(X_3,4)+15REF(X_3,5)+14REF(X_3,6)+13REF(X_3,7)+12REF(X_3,8)+11REF(X_3,9)+10REF(X_3,10)+9REF(X_3,11)+8REF(X_3,12)+7REF(X_3,13)+6REF(X_3,14)+5REF(X_3,15)+4REF(X_3,16)+3REF(X_3,17)+2REF(X_3,18)+REF(X_3,20))/210;
X_5:=CLOSE/REF(CLOSE,1) =1.058;
X_6:=crOSS(CLOSE,X_4) OR CROSS(CLOSE,X_1) OR CROSS(CLOSE,X_2);
牛出栏:X_5 AND X_6;