Excel VBA：查找两个表的并集

Question

I am new to vba and I've got two updating columns of text & I want to find the union of the two columns.

For Example

+---------+---------+
| ColumnA | ColumnB |
+---------+---------+
|   ABC   |    F    |
|   DE    |    F    |
|   F     |   AB    |
|   DBCA  |   CDE   |
|   E     |         |
+---------+---------+

I want to write the result in a new column columnC ( order doesn't matter )

+---------+
| ColumnC |
+---------+
|   ABC   |
|   F     |
|   DE    |
|   DBCA  |
|   E     |
|   AB    |
|   CDE   |
+---------+

How to work out this? Thanks.

Answer 1

edited : added removal of duplicated values

try this

Sub main()
    With Worksheets("Columns") '<--| change "Columns" to your actual worksheet name
        With .Range("A1", .Range("A1").End(xlDown))
            .Parent.Range("C1").Resize(.Rows.Count).Value = .Value
        End With
        With .Range("B1", .Range("B1").End(xlDown))
            .Parent.Range("C1").End(xlDown).Offset(1).Resize(.Rows.Count).Value = .Value
        End With
        .Range("C1", .Range("C1").End(xlDown)).RemoveDuplicates Array(1)
    End With
End Sub