form1.frm

蒋加伏主编VB程序设计第四版PPT及全部课本源码 北京邮电大学出版社 Visual Basic 程序设计教程（第四版） 主编 蒋加伏 张林峰 找了好久的（不带密码的）

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "例[5-10] 求多项式和"
   ClientHeight    =   1785
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   3030
   LinkTopic       =   "Form1"
   ScaleHeight     =   1785
   ScaleWidth      =   3030
   StartUpPosition =   3  '窗口缺省
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   1560
      TabIndex        =   0
      Top             =   1200
      Width           =   1215
   End
   Begin VB.Label Label1 
      Caption         =   "输入 n 的值："
      Height          =   495
      Left            =   1560
      TabIndex        =   1
      Top             =   840
      Width           =   1215
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Form_Click()
Dim n As Integer, i As Integer
Dim sum As Single, a As Single
sum = 0#
n = Val(Text1.Text)
For i = 1 To n
a = 1# / i
sum = sum + a
Next i
Print n; "项的和是："; sum
End Sub