X_3:=(X_1-X_2)*2;
X_4:=crOSS(X_2,X_1) AND X_2
X_5:=REF(HIGH,BArslAST(X_4));
X_6:=CLOSE X_5 AND REF(CLOSE,1)
X_7:=X_3 0 AND REF(X_3,1) 0 AND REF(X_3,2) 0 AND X_3-REF(X_3,1) 0.01 AND REF(X_3,2)-REF(X_3,1) 0.01 AND REF(X_3,3)-REF(X_3,2) 0.01;
买进:X_6 OR X_7;