Table.RemoveFirstN

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

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。

示例:

删除表的第一行。

使用情况:

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)

输出:

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

示例:

删除表的前两行。

使用情况:

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)

输出:

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

示例:

删除表中 [CustomerID] <=2 的前几行。

使用情况:

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)

输出:

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