N:=30; VAR1:=IF(YEAR>2010 AND MONTH>=2,0,1); VAR2:=MA(CLOSE,N); VAR3:=VAR2+2*STD(CLOSE,N); VAR4:=VAR2-2*STD(CLOSE,N); (VAR3-VAR4)/VAR2*100*VAR1;
投股票 网 ww w.tou18.cn