form1.frm

蒋加伏主编VB程序设计第四版PPT及全部课本源码 北京邮电大学出版社 Visual Basic 程序设计教程（第四版） 主编 蒋加伏 张林峰 找了好久的（不带密码的）

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "例[5-9] 成绩统计"
   ClientHeight    =   1800
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   3945
   LinkTopic       =   "Form1"
   ScaleHeight     =   1800
   ScaleWidth      =   3945
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command3 
      Caption         =   "结束"
      Height          =   400
      Left            =   2640
      TabIndex        =   7
      Top             =   1080
      Width           =   975
   End
   Begin VB.CommandButton Command1 
      Caption         =   "开始"
      Height          =   400
      Left            =   2640
      TabIndex        =   6
      Top             =   360
      Width           =   975
   End
   Begin VB.TextBox Text3 
      Height          =   400
      Left            =   1080
      TabIndex        =   5
      Top             =   1200
      Width           =   1215
   End
   Begin VB.TextBox Text2 
      Height          =   400
      Left            =   1080
      TabIndex        =   4
      Top             =   720
      Width           =   1215
   End
   Begin VB.TextBox Text1 
      Height          =   400
      Left            =   1080
      TabIndex        =   3
      Top             =   240
      Width           =   1215
   End
   Begin VB.Label Label3 
      Caption         =   "总平均分"
      Height          =   285
      Left            =   120
      TabIndex        =   2
      Top             =   1320
      Width           =   1215
   End
   Begin VB.Label Label2 
      Caption         =   "及格人数"
      Height          =   285
      Left            =   120
      TabIndex        =   1
      Top             =   840
      Width           =   1215
   End
   Begin VB.Label Label1 
      Caption         =   "学生人数"
      Height          =   285
      Left            =   120
      TabIndex        =   0
      Top             =   360
      Width           =   1215
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'Dim n As Integer, m As Integer, total As Single
 Private Sub Command1_Click()
Dim Score As Single, PassN As Integer, n As Integer
Dim i As Integer, Sum As Single
Sum = 0: PassN = 0: n = 0
For i = 1 To 50             ' 统计人数大于50时停止循环
Score = InputBox("请输入学生成绩")
If Score < 0 Then       ' 输入负数时停止循环
Exit For
Else
If Score >= 60 Then PassN = PassN + 1   '统计及格人数
n = n + 1                   '统计总人数
Sum = Sum + Score           '统计总分
End If
Next i
Text1.Text = Str$(n)
Text2.Text = Str$(PassN)
Text3.Text = Str$(Sum / n)
End Sub