practice8_9.frm

深圳大学的vb上机与教学的课件

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "用递归方法求斐波那契数列"
   ClientHeight    =   2340
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   7515
   LinkTopic       =   "Form1"
   ScaleHeight     =   2340
   ScaleWidth      =   7515
   StartUpPosition =   2  '屏幕中心
   Begin VB.TextBox Text1 
      Height          =   975
      Left            =   360
      Locked          =   -1  'True
      MultiLine       =   -1  'True
      ScrollBars      =   1  'Horizontal
      TabIndex        =   1
      Top             =   240
      Width           =   6735
   End
   Begin VB.CommandButton Command1 
      Caption         =   "求值"
      Height          =   495
      Left            =   3000
      TabIndex        =   0
      Top             =   1560
      Width           =   1695
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Function Fibonacci(n)
  If n = 1 Then
    Fibonacci = 0
  ElseIf n = 2 Then
     Fibonacci = 1
  Else
    Fibonacci = Fibonacci(n - 1) + Fibonacci(n - 2)
  End If
End Function
Private Sub Command1_Click()
   Text1.Text = ""
   I = 1
   Fib = Fibonacci(I)
   Do While Fib < 5000
     Text1.Text = Text1.Text & Str(Fib) & "  "
     I = I + 1
     Fib = Fibonacci(I)
   Loop
End Sub