Excel常用函数 判断最值与四舍五入字符处理SubstotalSumif CountifsCountaCountRightFindLeftMidSubtituteCountifSumifsSumTrimIntRoundTextMinEmonthLargeDaySmallTodayMaxYear统计求和日期查找IfIferrorAndOrSumproductAverageifsAverageifAverageModMonthDateNetworkdays.intlDatedifEdateRowLookupColumn MatchIndirectIndexOffsetVlookup
