例10.frm

来自「在VB5环境下开发的VB程序集,窗体控件源代码.」· FRM 代码 · 共 45 行

VERSION 5.00
Begin VB.Form frm8_7_5 
   Caption         =   "例10:利用递归求阶乘(单击窗体)"
   ClientHeight    =   2370
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4680
   BeginProperty Font 
      Name            =   "宋体"
      Size            =   12
      Charset         =   134
      Weight          =   400
      Underline       =   0   'False
      Italic          =   0   'False
      Strikethrough   =   0   'False
   EndProperty
   LinkTopic       =   "Form1"
   ScaleHeight     =   2370
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
End
Attribute VB_Name = "frm8_7_5"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Form_Click()
   Dim myn As Double
   Cls
   myn = InputBox("请输入小于171的数")
   If myn <= 170 And myn >= 0 Then
      Print myn & "!="; factorial(myn)
   Else
      Print "数据越界!"
   End If
End Sub
Public Function factorial(n As Double) As Double
   If n > 1 Then
     factorial = n * factorial(n - 1)
   Else
     factorial = 1
   End If
End Function