仅工作日和删除周末

Question

在我的A栏中，我有整个月的日期。现在，我要删除所有周末，仅保留工作日，即仅星期一至星期五。

Answer 1

=ARRAYFORMULA(FILTER(A2:A, TEXT(A2:A, "ddd")<>"sat",
                           TEXT(A2:A, "ddd")<>"sun"))

Answer 2

一口气就是：

=ARRAYFORMULA(TEXT(FILTER(TO_DATE(ROW(
 INDIRECT("A"&DATE(2019, 1, 1)):
 INDIRECT("B"&EOMONTH(DATE(2019, 1, 1), 0)))), TEXT(TO_DATE(ROW(
 INDIRECT("A"&DATE(2019, 1, 1)):
 INDIRECT("B"&EOMONTH(DATE(2019, 1, 1), 0)))), "ddd")<>"sat", TEXT(TO_DATE(ROW(
 INDIRECT("A"&DATE(2019, 1, 1)):
 INDIRECT("B"&EOMONTH(DATE(2019, 1, 1), 0)))), "ddd")<>"sun"), "dd-mmm-yyyy"))

或更短：

=ARRAYFORMULA(TEXT(FILTER(TO_DATE(ROW(
 INDIRECT("A"&        DATE(2019, 1, 1)):
 INDIRECT("B"&EOMONTH(DATE(2019, 1, 1), 0)))), REGEXREPLACE(TEXT(TO_DATE(ROW(
 INDIRECT("A"&        DATE(2019, 1, 1)):
 INDIRECT("B"&EOMONTH(DATE(2019, 1, 1), 0)))), "ddd"),"Sat|Sun","♠")<>"♠"), "dd-mmm-yyyy"))