第二題 (使用VB 2005) 總和寫法;平均值我不懂是什麼意思,所以沒寫...
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim i, sum As Integer
For i = 0 To 100 step 2
sum += i
Next
TextBox3.Text = sum
End Sub
End Class