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JX:=(MA(C,3)+MA(C,5)+MA(C,10)+MA(C,20))/4;{股票教程网-股票公式网站 www.gwgz.net}JC:C-JX;MID:=MA(JC,20);AA:=POW((JC-MID),2);BB:=MA(AA,20);CC:=SQRT(BB); SG:MID+2*CC;XG:MID-2*CC;中线:(SG+XG)/2;