把支撑压力指标里的底线和铁底线做个选股
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编写要求：
VAR1:=IF(DATE>=10201201,0,1); VAR2:=EMA(SLOPE(CLOSE,21)*20+CLOSE,55); VAR3:=EMA(CLOSE,3); VAR4:=(2*CLOSE+LOW+HIGH)/4*VAR1; VAR5:=VAR2-VAR3; 风险线:EMA(VAR4,45)*1.15; 必卖线:EMA(VAR4,55)*1.3; 底线:EMA(VAR4,40)*0.85; 铁底线:EMA(VAR4,88)*0.7,COLORRED; 成本线:EMA(VAR4,55),COLORGREEN; 持仓:STICKLINE(VAR5>=0,VAR3,VAR2,0.5,0),LINETHICK2; 减仓:STICKLINE(VAR5<0,VAR3,VAR2,0.5,0),LINETHICK2,COLORYELLOW; 价值中枢: (成本线+底线)/2,COLORFFFF00;
11q.cn解答：
VAR4:=(2*CLOSE+LOW+HIGH)/4;
底线:=EMA(VAR4,40)*0.85;
铁底线:=EMA(VAR4,88)*0.7;
l<=底线 or l<=铁底线;
