form1.frm

这里有很多很实用的VB编程案例,方便大家学习VB.

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "定时器"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command3 
      Caption         =   "消除"
      Height          =   495
      Left            =   3000
      TabIndex        =   3
      Top             =   1920
      Width           =   1215
   End
   Begin VB.CommandButton Command2 
      Caption         =   "停止"
      Height          =   495
      Left            =   1560
      TabIndex        =   2
      Top             =   1920
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "计时"
      Height          =   495
      Left            =   120
      TabIndex        =   1
      Top             =   1920
      Width           =   1215
   End
   Begin VB.Timer Timer1 
      Interval        =   300
      Left            =   480
      Top             =   240
   End
   Begin VB.Label Label1 
      Caption         =   "0"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ForeColor       =   &H00FF0000&
      Height          =   495
      Left            =   1440
      TabIndex        =   0
      Top             =   240
      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 Command1_Click()
    '使定时器有效
    Timer1.Enabled = True
End Sub

Private Sub Command2_Click()
    '使定时器无效
    Timer1.Enabled = flase
End Sub

Private Sub Command3_Click()
    '清0
    Label1.Caption = "0"
End Sub

Private Sub Timer1_Timer()
    Dim count As Long
    count = Label1.Caption
    '累加
    count = count + 1
    Label1.Caption = count
End Sub