VB的问题，在线等答案，急！

Question

Private Sub Form_Click()
Dim a%, b%, num1%, num2%, temp
num1 = InputBox("请输入一个正整数")
num2 = InputBox("请输入一个正整数")

If 【?】 Then
temp = num1: num1 = num2: num2 = temp
End If
a = num1
b = num2

While 【?】
temp = a Mod b
a = b

【?】
Wend
Print "最大公因数为："; a
Print "最小公倍数为："; num1 * num2 / a
End Sub

吧问号改成代码，谢谢，好的答案我会加分的！

Answer 1

Private Sub Form_Click()
Dim a%, b%, num1%, num2%, temp
num1 = InputBox("请输入一个正整数")
num2 = InputBox("请输入一个正整数")

If num1 < num2 Then '填空1
temp = num1: num1 = num2: num2 = temp
End If
a = num1
b = num2

While temp <> 0 '填空2
temp = a Mod b
a = b
b = temp '填空3
Wend
Print "最大公因数为："; a
Print "最小公倍数为："; num1 * num2 / a
End Sub