vb題，三個標簽，壹個文本框，兩個命令按鈕，編寫壹計算機自動出題並判斷對錯的程序，單擊出題按鈕，

Randomize

Label1 = Int(Rnd * 9) + 1 '如果要兩位數就把9改成99

Randomize

Label3 = Int(Rnd * 9) + 1

Select Case Int(Rnd * 4) + 1

Case 1

Label2 = "＋"

Case 2

Label2 = "－"

Case 3

Label2 = "×"

Case 4

Label2 = "÷"

End Select

End Sub

Private Sub Command2_Click()

Select Case Label2.Caption

Case "＋"

If Text1 = CInt(Label1) + CInt(Label3) Then

MsgBox "正確"

Else

MsgBox "錯誤"

End If

Case "－"

If Text1 = CInt(Label1) - CInt(Label3) Then

MsgBox "正確"

Else

MsgBox "錯誤"

End If

Case "×"

If Text1 = CInt(Label1) * CInt(Label3) Then

MsgBox "正確"

Else

MsgBox "錯誤"

End If

Case "÷"

If Text1 = CInt(Label1) / CInt(Label3) Then

MsgBox "正確"

Else

MsgBox "錯誤"

End If

End Select

End Sub