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Table.RemoveFirstN

返回跳过了前几个计数行的表。

Syntax​

Table.RemoveFirstN(
    table as table,
    optional countOrCondition as any
) as table

Remarks​

返回一个表，该表不包含表 table 的指定数量的前几行 countOrCondition。 删除的行数依赖于可选参数 countOrCondition。

  • 如果忽略 countOrCondition，则只删除第一行。
  • 如果 countOrCondition 为数字，则将删除该数字那么多的行(从顶部开始)。
  • 如果 countOrCondition 是条件，将删除满足此条件的行，直到行不满足条件为止。

Examples​

Example #1​

删除表的第一行。

Table.RemoveFirstN(
    Table.FromRecords({
        [CustomerID = 1, Name = "Bob", Phone = "123-4567"],
        [CustomerID = 2, Name = "Jim", Phone = "987-6543"],
        [CustomerID = 3, Name = "Paul", Phone = "543-7890"],
        [CustomerID = 4, Name = "Ringo", Phone = "232-1550"]
    }),
    1
)

Result:

Table.FromRecords({
    [CustomerID = 2, Name = "Jim", Phone = "987-6543"],
    [CustomerID = 3, Name = "Paul", Phone = "543-7890"],
    [CustomerID = 4, Name = "Ringo", Phone = "232-1550"]
})

Example #2​

删除表的前两行。

Table.RemoveFirstN(
    Table.FromRecords({
        [CustomerID = 1, Name = "Bob", Phone = "123-4567"],
        [CustomerID = 2, Name = "Jim", Phone = "987-6543"],
        [CustomerID = 3, Name = "Paul", Phone = "543-7890"],
        [CustomerID = 4, Name = "Ringo", Phone = "232-1550"]
    }),
    2
)

Result:

Table.FromRecords({
    [CustomerID = 3, Name = "Paul", Phone = "543-7890"],
    [CustomerID = 4, Name = "Ringo", Phone = "232-1550"]
})

Example #3​

删除表中 [CustomerID] <=2 的前几行。

Table.RemoveFirstN(
    Table.FromRecords({
        [CustomerID = 1, Name = "Bob", Phone = "123-4567"],
        [CustomerID = 2, Name = "Jim", Phone = "987-6543"],
        [CustomerID = 3, Name = "Paul", Phone = "543-7890"],
        [CustomerID = 4, Name = "Ringo", Phone = "232-1550"]
    }),
    each [CustomerID] <= 2
)

Result:

Table.FromRecords({
    [CustomerID = 3, Name = "Paul", Phone = "543-7890"],
    [CustomerID = 4, Name = "Ringo", Phone = "232-1550"]
})

Category​

Table.Row operations