1、在D:E列添加辅助列,D2单元格输入=MONTH(C2)-MONTH(B2)+1E2单元格输入=SUM(D$2:D2)-D2然后向下填充公式;
2、在G2单元格输入以下公式,然后向下填充公式=IF(ROW(A1)SUM(D:D),"",LOOKUP(ROW(A1)-1,E:E,A:A))
3、在H2单元格输入以下公式,然后向下填充公式=IF(ROW(A1)SUM(D:D),"",TEXT(DATE(YEAR(LOOKUP(ROW(A1)-1,E:E,B:B)),MONTH(LOOKUP(ROW(A1)-1,E:E,B:B))+COUNTIF(G$1:G1,G2),1),"yyyy-m"))
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