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以下是通达信抄底大跌后抄底和铁底选股说明贴图（无源码的请下载附件导入）
{大跌后抄底和铁底}
去除ST股:=EXIST((C-REF(C,1))/REF(C,1)*100>5.6,100);
去除星股:=IF(NAMELIKE('*'),0,1);
VAR5:=EMA(AMOUNT/VOL/100,3);
伏击线:=EMA(VAR5,88)*0.85;
走势铁底:=伏击线*0.87;
VAR6:=LOW<=走势铁底 AND CLOSE>REF(CLOSE,1)*1.02;
DIF1:=EMA(CLOSE,3)-EMA(CLOSE,8);
X1:=EMA(DIF1,5)*5;
X2:=((EMA(CLOSE,3)-EMA(CLOSE,8)))*5;
X3:=CROSS(X2,X1) AND X1<-0.25 AND (REF(C,20)-C)/C>0.30;
XG1:X3 AND VAR6 AND 去除ST股 AND 去除星股;
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