5-11.frm

本教材为“第2章”、“第4章”、“第7章”、“第8章”、“第10章”和“第12章”配备了附加练习题及答案

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   4110
   ClientLeft      =   60
   ClientTop       =   405
   ClientWidth     =   6900
   BeginProperty Font 
      Name            =   "宋体"
      Size            =   15.75
      Charset         =   134
      Weight          =   400
      Underline       =   0   'False
      Italic          =   0   'False
      Strikethrough   =   0   'False
   EndProperty
   LinkTopic       =   "Form1"
   ScaleHeight     =   4110
   ScaleWidth      =   6900
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command1 
      Caption         =   "生成并计算"
      Height          =   615
      Left            =   360
      TabIndex        =   2
      Top             =   3000
      Width           =   1935
   End
   Begin VB.TextBox Text1 
      Height          =   1695
      Left            =   240
      MultiLine       =   -1  'True
      TabIndex        =   1
      Top             =   960
      Width           =   3615
   End
   Begin VB.Label Label2 
      AutoSize        =   -1  'True
      Caption         =   "Label2"
      Height          =   315
      Left            =   4200
      TabIndex        =   3
      Top             =   720
      Width           =   990
   End
   Begin VB.Label Label1 
      AutoSize        =   -1  'True
      Caption         =   "5×5数组："
      Height          =   315
      Left            =   360
      TabIndex        =   0
      Top             =   480
      Width           =   1590
   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()
Dim a%(5, 5), i%, j%, sum%
Randomize
Text1.Text = ""
sum = 0
For i = 1 To 5
For j = 1 To 5
a(i, j) = Int(Rnd * 40) + 1
If i = j Or i + j = 6 Then sum = sum + a(i, j)
Text1.Text = Text1.Text & Format(a(i, j), "@@@@")
Next j
Text1.Text = Text1.Text & vbCrLf
Next i
Label2.Caption = "对角线元素" & vbCrLf & "之和=" & sum
End Sub