form1.frm

Visual Basic程序设计视频教程

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3180
   ClientLeft      =   60
   ClientTop       =   360
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3180
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command1 
      Caption         =   "Command1"
      Height          =   495
      Left            =   1800
      TabIndex        =   0
      Top             =   1320
      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()
L10:
    A = Val(InputBox("请输入“数学”成绩(0～100)"))
    If A < 0 Or A > 100 Then
        MsgBox "超出范围, 请重输入!"
        GoTo L10
    End If
L20:
    B = Val(InputBox("请输入“物理”成绩(0～100)"))
    If B < 0 Or B > 100 Then
        MsgBox "超出范围, 请重输入!"
        GoTo L20
    End If
L30:
    C = Val(InputBox("请输入“化学”成绩(0～100)"))
    If C < 0 Or C > 100 Then
        MsgBox "超出范围, 请重输入!"
        GoTo L30
    End If
       
    Average = (A + B + C) / 3
    If Average >= 60 Then
        MsgBox "平均分数=" & Average & ", 及格"
    Else
        MsgBox "平均分数=" & Average & ", 不及格"
    End If

End Sub