第9講 For文以外の様々なループ文
第2話 While文によるいろいろな和の計算
Private Sub CommandButton1_Click()
Dim w As Integer, i As Integer, n As Integer
w = 0
i = 1
n = Cells(5, 2)
Do Until i > 10
w = w + i
i = i + 1
Loop
Cells(6, 2) = n
Cells(6, 4) = w
End Sub
ではシートを改良して、いろいろな計算が出来るようにしましょう。
実行例
ただし、処理が増えてきましたので、和はそれぞれプロシージャで処理することにしましょう。
解答例は、30行下。
コード例
Private Sub CommandButton1_Click()
Dim h As Long, o As Long, b As Long
h = Cells(5, 2)
o = Cells(6, 2)
b = Cells(7, 2)
f1 h, o, b '1乗の和の計算
f2 h, o, b '2乗の和の計算
f3 h, o, b '3乗の和の計算
f4 h, o, b '4乗の和の計算
End Sub
'1乗の和の計算
Sub f1(h As Long, o As Long, b As Long)
Dim i As Long, w As Long
w = 0
i = h
While i <= o
w = w + i
i = i + b
Wend
Cells(9, 4) = w
End Sub
'2乗の和の計算
Sub f2(h As Long, o As Long, b As Long)
Dim i As Long, w As Long
w = 0
i = h
While i <= o
w = w + i * i
i = i + b
Wend
Cells(10, 4) = w
End Sub
'3乗の和の計算
Sub f3(h As Long, o As Long, b As Long)
Dim i As Long, w As Long
w = 0
i = h
While i <= o
w = w + i * i * i
i = i + b
Wend
Cells(11, 4) = w
End Sub
'4乗の和の計算
Sub f4(h As Long, o As Long, b As Long)
Dim i As Long, w As Long
w = 0
i = h
While i <= o
w = w + i * i * i * i
i = i + b
Wend
Cells(12, 4) = w
End Sub
Private Sub CommandButton2_Click()
Range("B5:B7,D9:D13").Select
Selection.ClearContents
Cells(1, 1).Select
End Sub
では同じ課題をDo While...Loop文、Do...Loop While文で実現してみましょう。
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