X_1:=EMA(CLOSE,12)-EMA(CLOSE,26);
X_2:=EMA(X_1,9);
X_3:=BArslAST(REF(crOSS(X_2,X_1),1));
X_4:=BARSLAST(REF(CROSS(X_1,X_2),1));
X_5:=MA(CLOSE,20);
黄金坑洗盘:CROSS(X_2,X_1) AND CLOSE X_5 AND X_5 REF(X_5,1) AND X_1 REF(X_1,X_4+1);