form1.frm

求最大数

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4395
   LinkTopic       =   "Form1"
   ScaleHeight     =   3195
   ScaleWidth      =   4395
   StartUpPosition =   3  'Windows Default
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   1800
      TabIndex        =   6
      Top             =   960
      Width           =   2055
   End
   Begin VB.TextBox Text3 
      Height          =   375
      Left            =   1800
      TabIndex        =   5
      Top             =   2400
      Width           =   2055
   End
   Begin VB.TextBox Text2 
      Height          =   375
      Left            =   1800
      TabIndex        =   4
      Top             =   1680
      Width           =   2055
   End
   Begin VB.CommandButton Command4 
      Caption         =   "平均值"
      Height          =   375
      Left            =   360
      TabIndex        =   3
      Top             =   2400
      Width           =   1095
   End
   Begin VB.CommandButton Command3 
      Caption         =   "最小值"
      Height          =   375
      Left            =   360
      TabIndex        =   2
      Top             =   1680
      Width           =   1095
   End
   Begin VB.CommandButton Command2 
      Caption         =   "最大值"
      Height          =   375
      Left            =   360
      TabIndex        =   1
      Top             =   960
      Width           =   1095
   End
   Begin VB.CommandButton Command1 
      Caption         =   "生成随机数"
      Height          =   495
      Left            =   1200
      TabIndex        =   0
      Top             =   120
      Width           =   1935
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim shu(1 To 10000) As Long

Private Sub Command1_Click()
Dim i As Integer
Dim shu As Long
Open App.Path + "\a.txt" For Output As #1
For i = 1 To 10000
Randomize
shu = Int(Rnd * (999999 - 100000 + 1) + 100000)
Print #1, shu
Next i
Close #1

End Sub

Private Sub Command2_Click()
Dim i, j As Integer
Dim temp As Long
Open App.Path + "\a.txt" For Input As #1
For i = 1 To 10000
Input #1, shu(i)
Next i
Close #1
For i = 1 To 9999
For j = i + 1 To 10000
If shu(i) > shu(j) Then
temp = shu(i)
shu(i) = shu(j)
shu(j) = temp
End If
Next j
Next i
Text1.Text = shu(10000)

End Sub

Private Sub Command3_Click()
Dim i, j As Integer
Dim temp As Long
Open App.Path + "\a.txt" For Input As #1
For i = 1 To 10000
Input #1, shu(i)
Next i
Close #1
For i = 1 To 9999
For j = i + 1 To 10000
If shu(i) > shu(j) Then
temp = shu(i)
shu(i) = shu(j)
shu(j) = temp
End If
Next j
Next i
Text2.Text = shu(1)

End Sub

Private Sub Command4_Click()
Dim i As Integer
Dim sum As Double
Open App.Path + "\a.txt" For Input As #1
For i = 1 To 10000
Input #1, shu(i)
Next i
Close #1
For i = 1 To 10000
sum = sum + shu(i)
Next i
Text3.Text = sum / 10000
End Sub