主题：关于getvalues的使用

不能这样比较的。

Dim Arys As List(Of String()) = DataTables("明细").GetValues("月|材料") '列名用符号|分割
'注意循环变量是字符型数组,所以类型是String(),而不是String
For Each s As String() In DataTables("期初").GetValues("月|材料")
    Dim contains As Boolean = False
    For Each ary() As String In arys
        If ary(0) = s(0) AndAlso ary(1) = s(1) Then
            contains = True
            Exit For
        End If
    Next
    If contains = False Then
        arys.add(s)
    End If
Next