主题：不知道哪里错了，

Dim 項目1() As String = {"1", "2", "3", "4"}

For a As Integer = 0 To 項目1.Length - 1

Dim 項目2() As String = {"5", "6", "7", "8"}

    For b As Integer = 0 To 項目2.Length - 1

Dim 項目3() As String = {"a", "b", "c", "d"}

        For c As Integer = 0 To 項目3.Length - 1

              e.Form.Controls("TextBox11").text + = 項目1(a) & "," & 項目2(b) & "," & 項目3(c)& vbCrLf

        Next

    Next

Next

e.Form.Controls("TextBox11").text +   写成这样，就出问题， 

但是 换成 output.show  就没事了， 是为什么呢

额额～～ 没错，  是我看错了，  因为不能换行，，  但为什么换行符号 不好使呢？