3-5.frm

Visual Basic课程举例1 有很好的例题

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "3-5"
   ClientHeight    =   2220
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   3675
   BeginProperty Font 
      Name            =   "宋体"
      Size            =   12
      Charset         =   134
      Weight          =   400
      Underline       =   0   'False
      Italic          =   0   'False
      Strikethrough   =   0   'False
   EndProperty
   LinkTopic       =   "Form1"
   ScaleHeight     =   2220
   ScaleWidth      =   3675
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command1 
      Caption         =   "开始输入数据"
      Height          =   375
      Left            =   480
      TabIndex        =   0
      Top             =   120
      Width           =   2775
   End
   Begin VB.Label Label2 
      Appearance      =   0  'Flat
      BackColor       =   &H80000005&
      BorderStyle     =   1  'Fixed Single
      ForeColor       =   &H80000008&
      Height          =   1095
      Left            =   480
      TabIndex        =   1
      Top             =   840
      Width           =   2895
   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()
    
mx = 0
Do
    n = InputBox("请输入一个数据")
    If Not IsNumeric(n) Then Exit Do
    If mx < Val(n) Then mx = Val(n)
Loop
Label2.Caption = "最大的数是" & Format(mx)

End Sub