孙子算经.frm

算法教案

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "孙子算经"
   ClientHeight    =   3855
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   5880
   LinkTopic       =   "Form1"
   ScaleHeight     =   3855
   ScaleWidth      =   5880
   StartUpPosition =   3  '窗口缺省
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   3720
      TabIndex        =   3
      Top             =   1200
      Width           =   1095
   End
   Begin VB.CommandButton Command1 
      Caption         =   "计算"
      Height          =   495
      Left            =   3720
      TabIndex        =   1
      Top             =   2760
      Width           =   975
   End
   Begin VB.ListBox List1 
      Height          =   2760
      ItemData        =   "孙子算经.frx":0000
      Left            =   240
      List            =   "孙子算经.frx":0002
      TabIndex        =   0
      Top             =   480
      Width           =   2295
   End
   Begin VB.Label Label1 
      Caption         =   "查找范围的最大自然数："
      Height          =   495
      Left            =   3360
      TabIndex        =   2
      Top             =   720
      Width           =   2055
   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 sum As Integer
    Dim n, max As Integer
    List1.Clear
    sum = 0
    max = Val(Text1.Text)
    n = 0
    Do While n <= max
       n = n + 1         '从自然数1开始不断往上寻找
       If n Mod 3 = 2 And n Mod 5 = 3 And n Mod 7 = 2 Then
            List1.AddItem Str(n)
            sum = sum + 1    '统计个数
       End If
    Loop
    List1.AddItem ("共计" + Str(sum) + "个")
            
End Sub

Private Sub Text1_Click()
   List1.Clear
   Text1.Text = ""
End Sub