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在 Excel 中建立從第一個輸入數字到第二個輸入數字的數字序列

tag-icon • tag-icon microsoft-excel
在 Excel 中建立從第一個輸入數字到第二個輸入數字的數字序列

我想在訊息框中寫出我選擇的兩個數字之間的數字。在檢查它們是否是偶數時，它們必須是從最小到最大的數。這 2 個數字必須為正且小於 100。

我在 Excel 中使用 Visual Basic，但我以前從未使用過它。

Private Sub CommandButton1_Click()

Dim a, b, P, i As Integer

a = InputBox("Write number from 1 to 100 ")
If a <= 0 Or a >= 100 Then
MsgBox "Wrong input"
Exit Sub
End If
b = InputBox("Write number from 1 to 100 ")
If b <= 0 Or b >= 100 Then
MsgBox "Wrong input"
Exit Sub
End If

For i = a To b
If a <> 0 & a <= b Then
a = a + 1
Else
P = a
a = a + 1
Exit For
End If
Next i

MsgBox P


End Sub

答案1

我會做得有點不一樣。您當然可以使用命令按鈕觸發此操作。請注意，我檢查偶數（而且我也不認為零是正數（或負數）。

Option Explicit
Sub CreateSequence()

   'Note each variable must have a type declaration,
   '   else they will be of type Variant
    Dim x As Long, y As Long, z As Long
    Dim S As String

x = InputBox("First Number")
y = InputBox("Second Number")

If Not CheckNum(x) Or Not CheckNum(y) Then
        MsgBox "Both numbers must be positive and less than 100"
        Exit Sub
    End If

If x > y Then 'reverse x and y
    z = y
    y = x
    x = z
End If

For z = x To y
    'check if even and add to string if they are
    If z Mod 2 = 0 Then S = S & vbLf & z
Next z

'Remove the leading separator (vbLf)
S = Mid(S, 2)

MsgBox S

End Sub

Function CheckNum(L As Long) As Boolean
    If L > 0 And L < 100 Then
        CheckNum = True
    Else
        CheckNum = False
    End If

End Function

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