首頁
- 代碼:
Private Sub Command1_Click()
Label1.Caption = "功能:計算等差級數"
Text1.Text = "首項"
Text2.Text = "公差"
Text3.Text = "項數"
Label2.Caption = ""
End Sub
Private Sub Command2_Click()
Label1.Caption = "功能:計算費氏級數"
Text1.Text = " "
Text2.Text = " "
Text3.Text = "項數"
Label2.Caption = ""
End Sub
Private Sub Command3_Click()
Label1.Caption = "功能:計算等比級數"
Text1.Text = "首項"
Text2.Text = "公比"
Text3.Text = "項數"
Label2.Caption = ""
End Sub
Private Sub Command4_Click()
Dim a1, d, n, t, s, sum As Integer
a1 = Val(Text1.Text)
d = Val(Text2.Text)
n = Val(Text3.Text)
s = a1
sum = 0
For t = 2 To n Step 1
s = s + d
sum = sum + s
Next t
sum = sum + a1
Dim r1, r, rn, rt, rs, rsum As Integer
r1 = Val(Text1.Text)
r = Val(Text2.Text)
rn = Val(Text3.Text)
rs = r1
rsum = 0
For rt = 1 To rn Step 1
rs = r1 * r ^ (rt - 1)
rsum = rsum + rs
Next rt
Dim f1, f2, fn, ft, fs, fsum As Integer
f1 = 1
f2 = 0
fn = Val(Text3.Text)
fs = 0
For ft = 2 To fn Step 1
fs = f1 + f2
fsum = fs
f2 = f1
f1 = fs
Next ft
If Label1.Caption = "功能:計算等差級數" Then
Label2.Caption = sum
ElseIf Label1.Caption = "功能:計算等比級數" Then
Label2.Caption = rsum
ElseIf Label1.Caption = "功能:計算費氏級數" Then
Label2.Caption = fsum
Else
Label2.Caption = "請選擇想要計算的級數"
End If
End Sub
Private Sub Form_Load()
End Sub
Private Sub Text1_Click()
Text1.Text = ""
End Sub
Private Sub Text2_Click()
Text2.Text = ""
End Sub
Private Sub Text3_Click()
Text3.Text = ""
End Sub
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