主题：字典匹配如何忽略字母大小写？

全部弄成大写不就行了？

Dim dic As new Dictionary(of String,String)
Dim dicfile As String =  Forms("窗口1").Controls("TextBox2").value
Dim Book As New XLS.Book(dicfile)
Dim Sheet As XLS.Sheet = Book.Sheets(0)
For i As Integer = 0 To Sheet.Rows.Count-1
    If dic.ContainsKey(Sheet(i, 0).Text.ToUpper) = False Then
        dic.add(Sheet(i, 0).Text.ToUpper,Sheet(i, 1).Text)
    End If
Next

If dic.ContainsKey(Sheet1(i, j).Text.ToUpper) Then
  Sheet1(i, j).Value = Sheet1(i, j).Text & "|" & dic(Sheet1(i, j).Text)
End If

 这句忘记改了

Sheet1(i, j).Value = Sheet1(i, j).Text & "|" & dic(Sheet1(i, j).Text.ToUpper)