each [a=Text.BetweenDelimiters(_,"[","](",{0, RelativePosition.FromStart}),b=Text.BetweenDelimiters(_,"](",")", {0, RelativePosition.FromEnd},0)]}),

{0, RelativePosition.FromStart} 这里什么意思，我试了下去掉也不影响结果。能解释下么，参数是index。我以为是个数值，这里{}是个列表么？
RelativePosition.FromStart 我看了文档没明白什么作用。

。这样其他步骤也不显示了。。。我只想隐藏 month 和year 两步。

let
    源 = Excel.CurrentWorkbook(){[Name="表1"]}[Content],
    更改的类型 = Table.TransformColumnTypes(源,{{"name", type text}, {"date", type date}}),
    month = Date.Month(DateTime.LocalNow()),
    year = Date.Year(DateTime.LocalNow()),
    筛选的行 = Table.SelectRows(更改的类型, each Date.Month([date]) = month and Date.Year([date]) = year),
    a = Table.TransformColumns(筛选的行,{{"name", each _}, {"date", each Date.ToText(_, "M月d日")}})

in
    Table.Group(a, {"name"}, {{"计数", each Text.Combine([date], ",")}})