例9.frm

在VB5环境下开发的VB程序集,窗体控件源代码.

VERSION 5.00
Begin VB.Form frm8_7_4 
   Caption         =   "例9:单击窗体,求n的阶乘"
   ClientHeight    =   2190
   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     =   2190
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.TextBox Text2 
      Height          =   495
      Left            =   1920
      TabIndex        =   3
      Top             =   1200
      Width           =   1815
   End
   Begin VB.TextBox Text1 
      Height          =   495
      Left            =   1920
      TabIndex        =   0
      Top             =   360
      Width           =   1815
   End
   Begin VB.Label Label2 
      Caption         =   "阶乘="
      Height          =   255
      Left            =   1200
      TabIndex        =   2
      Top             =   1320
      Width           =   735
   End
   Begin VB.Label Label1 
      Caption         =   "n="
      Height          =   375
      Left            =   1560
      TabIndex        =   1
      Top             =   480
      Width           =   375
   End
End
Attribute VB_Name = "frm8_7_4"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Function Fac(n As Integer) As Double   '求n!的函数
    Dim i As Integer, Temp As Double
    Temp = 1
    For i = 1 To n
       Temp = Temp * i
    Next i
    Fac = Temp       '把n !的值赋给函数名Fac
End Function
Private Sub Form_Click()
   Dim k As Integer, nj As Double
   k = Text1
   nj = Fac(k)                '求5的阶乘
   Text2 = nj
End Sub