frmtip.frm

用VB做的一个数据库管理系统

VERSION 5.00
Begin VB.Form frmTip 
   AutoRedraw      =   -1  'True
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "日积月累"
   ClientHeight    =   3180
   ClientLeft      =   2355
   ClientTop       =   2385
   ClientWidth     =   5415
   Icon            =   "frmTip.frx":0000
   LinkTopic       =   "Form1"
   LockControls    =   -1  'True
   MaxButton       =   0   'False
   MDIChild        =   -1  'True
   MinButton       =   0   'False
   ScaleHeight     =   3180
   ScaleWidth      =   5415
   ShowInTaskbar   =   0   'False
   WhatsThisButton =   -1  'True
   WhatsThisHelp   =   -1  'True
   Begin VB.CheckBox chkLoadTipsAtStartup 
      Caption         =   "启动时显示(&S)"
      Height          =   315
      Left            =   150
      TabIndex        =   2
      Top             =   2805
      Width           =   1665
   End
   Begin VB.CommandButton cmdNextTip 
      Caption         =   "下一个(&N)"
      Height          =   375
      Left            =   4080
      TabIndex        =   1
      Top             =   570
      Width           =   1215
   End
   Begin VB.PictureBox Picture1 
      BackColor       =   &H00FFFFFF&
      Height          =   2625
      Left            =   120
      Picture         =   "frmTip.frx":08CA
      ScaleHeight     =   2565
      ScaleWidth      =   3675
      TabIndex        =   3
      Top             =   120
      Width           =   3735
      Begin VB.Label Label1 
         BackColor       =   &H00FFFFFF&
         Caption         =   "您知道吗？"
         Height          =   255
         Left            =   540
         TabIndex        =   5
         Top             =   180
         Width           =   2655
      End
      Begin VB.Label lblTipText 
         BackColor       =   &H00FFFFFF&
         Height          =   1665
         Left            =   180
         TabIndex        =   4
         Top             =   840
         Width           =   3255
      End
   End
   Begin VB.CommandButton cmdOK 
      Cancel          =   -1  'True
      Caption         =   "确定"
      Default         =   -1  'True
      Height          =   375
      Left            =   4080
      TabIndex        =   0
      Top             =   120
      Width           =   1215
   End
   Begin VB.Label Label2 
      AutoSize        =   -1  'True
      Caption         =   "查看 Readme"
      ForeColor       =   &H000000FF&
      Height          =   180
      Left            =   1845
      MouseIcon       =   "frmTip.frx":0BD4
      MousePointer    =   99  'Custom
      TabIndex        =   6
      ToolTipText     =   "单击打开 Readme"
      Top             =   2865
      Width           =   990
   End
End
Attribute VB_Name = "frmTip"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

' 技巧的数据库。
Dim Tips As New Collection

' 技巧文件名称。
Const TIP_FILE = "STORE.WXY"

' 当前被显示的技巧集合索引。
Dim CurrentTip As Long


Private Sub DoNextTip()

    ' 随机选择一个技巧。
    CurrentTip = Int((Tips.Count * Rnd) + 1)
    
    ' 或者，按顺序在所有技巧中循环选择。

'    CurrentTip = CurrentTip + 1
'    If Tips.Count < CurrentTip Then
'        CurrentTip = 1
'    End If
    
    ' 显示。
    frmTip.DisplayCurrentTip
    
End Sub

Function LoadTips(sFile As String) As Boolean
    Dim NextTip As String   ' 从文件读取每一个技巧。
    Dim InFile As Integer   ' 文件描述符。
    
    ' 获得下一个空文件描述符。
    InFile = FreeFile
    
    ' 确保一个文件被指定。
    If sFile = "" Then
        LoadTips = False
        Exit Function
    End If
    
    ' 试图打开一个文件前，确保该文件存在。
    If Dir(sFile) = "" Then
        LoadTips = False
        Exit Function
    End If
    
    ' 从文本文件读取该集合。
    Open sFile For Input As InFile
    While Not EOF(InFile)
        Line Input #InFile, NextTip
        Tips.Add NextTip
    Wend
    Close InFile

    ' 随机显示一个技巧。
    DoNextTip
    
    LoadTips = True
    
End Function

Private Sub chkLoadTipsAtStartup_Click()
    ' 保存启动时该窗体是否显示。
SaveSetting App.EXEName, "Options", "Show Tips at Startup", chkLoadTipsAtStartup.Value
End Sub

Private Sub cmdNextTip_Click()
    DoNextTip
End Sub

Private Sub cmdOK_Click()
    Unload Me
End Sub

Private Sub Form_Load()
frmTip.Top = 0
frmTip.Left = 0
   Me.chkLoadTipsAtStartup.Value = vbChecked
    ' 为 Rnd 重置种子
    Randomize
    ' 读技巧文件并随机显示一个技巧。
    If LoadTips(App.Path & "\" & TIP_FILE) = False Then
        lblTipText.Caption = "" & TIP_FILE & " 文件未找到？" & vbCrLf & vbCrLf & _
           "使用记事本，创建一个名为 " & TIP_FILE & " 的文本文件，其中每行一个技巧。 " & _
           "然后，放在应用程序所在目录下。"
    End If

    
End Sub

Public Sub DisplayCurrentTip()
    If Tips.Count > 0 Then
        lblTipText.Caption = Tips.Item(CurrentTip)
    End If
End Sub

Private Sub Label2_Click()
Dim Rok As Double
Rok = Shell("notepad.exe " & Browser + "Readme.txt", vbNormalFocus)
If Rok = 0 Then
   MsgBox "Windows 的 Notepad 没有安装!", vbOKOnly + 16, "错误"
   Exit Sub
End If
End Sub