例7.6.frm

来自「一本学习Visual Basic编程的好书」· FRM 代码 · 共 38 行

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Form_Load()
    Show
    m = Val(InputBox("输入m的值"))
    n = Val(InputBox("输入n的值"))
    If m > n Then
        MsgBox "输入数据错误", 0, "检查错误"
        End
    End If
    Print "组合数是："; calcomb(n, m)
End Sub
Private Function calcomb(n, m)
    calcomb = jc(n) / (jc(m) * jc(n - m))
End Function
Private Function jc(x)
    t = 1
    For i = 1 To x
        t = t * i
    Next i
    jc = t
End Function