api 延时.frm

Windows API函数,希望大伙有用哦

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
   Begin VB.CommandButton Command1 
      Caption         =   "开  始"
      Height          =   435
      Left            =   1680
      TabIndex        =   0
      Top             =   2490
      Width           =   1395
   End
   Begin VB.Label Label1 
      AutoSize        =   -1  'True
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   15.75
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   315
      Left            =   1590
      TabIndex        =   1
      Top             =   1080
      Width           =   180
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Private Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)
Dim I As Integer
Private Sub Command1_Click()
    Me.Caption = "系统延时 10 秒"
    I = 10
    Print I
   Sleep 1000
For I = 9 To 1 Step -1
     Print I
   Sleep 1000
Next I
    Me.Caption = "时间到"
    Label1 = "时间到 !"
End Sub
Private Sub Form_Load()
    Me.Caption = "单击命令按钮开始"
End Sub