'Tables("表A").Compute("min(日期列)","SubString(Convert([时间],'System.String'),1,4) = 2015"'Tables("表A").Compute("max(日期列)","SubString(Convert([时间],'System.String'),1,4) = 2015"
http://www.foxtable.com/help/topics/0393.htm
http://www.foxtable.com/help/topics/1285.htm