4.22.frm

来自「VB6.0应用例题」· FRM 代码 · 共 41 行

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "函数的递归调用"
   ClientHeight    =   2175
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   6270
   LinkTopic       =   "Form1"
   ScaleHeight     =   2175
   ScaleWidth      =   6270
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command1 
      Caption         =   "产生斐波那契级数的前25项"
      Height          =   420
      Left            =   1920
      TabIndex        =   0
      Top             =   1440
      Width           =   2535
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
  Dim N As Integer
  Static M As Integer
  For N = 1 To 30
      Form1.Print Fibo(N),        '调用上例斐波那契级数第N项递归算法
      M = M + 1
      If M = 5 Then Form1.Print: M = 0        '打印换行
  Next N
End Sub
Function Fibo(N As Integer) As Long
    If N = 1 Then Fibo = 1
    If N = 2 Then Fibo = 1
    If N > 2 Then Fibo = Fibo(N - 1) + Fibo(N - 2)
End Function