XA_1:=(HIGH+LOW+CLOSE*2)/4;
XA_2:=EMA(XA_1,10);
XA_3:=STD(XA_1,10);
XA_4:=(XA_1-XA_2)*100/XA_3;
XA_5:=EMA(XA_4,5);
XA_6:=EMA(XA_5+55,9);
XA_7:=XA_6>100 AND CLOSE>MA(CLOSE,21) AND MA(CLOSE,13)>MA(CLOSE,21) AND MA(CLOSE,21)>MA(CLOSE,55) AND MA(CLOSE,55)>MA(CLOSE,144);
黄金牛股:XA_7 AND REF(XA_7,1)=0;
