通达信超前抢连板选股指标

X_1:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
X_2:=SMA(X_1,3,1);{公式之家BBS.GSZB.TOP}
X_3:=X_2-REF(X_2,1);
超前抢连扳3:IF(X_3>7 AND REF(X_3,1)<0 AND X_3-REF(X_3,1)>9,1,0);