子过程求方阵元素之和.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[8-9]求方阵所有元素之和"
   ClientHeight    =   2280
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4725
   LinkTopic       =   "Form1"
   ScaleHeight     =   2280
   ScaleWidth      =   4725
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command2 
      Caption         =   "求和"
      Height          =   615
      Left            =   3360
      TabIndex        =   5
      Top             =   1440
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "产生方阵"
      Height          =   615
      Left            =   3360
      TabIndex        =   4
      Top             =   240
      Width           =   1215
   End
   Begin VB.TextBox Text1 
      Height          =   1215
      Left            =   960
      MultiLine       =   -1  'True
      TabIndex        =   1
      Top             =   240
      Width           =   2175
   End
   Begin VB.Label Label3 
      BorderStyle     =   1  'Fixed Single
      Height          =   375
      Left            =   960
      TabIndex        =   3
      Top             =   1680
      Width           =   2175
   End
   Begin VB.Label Label2 
      Caption         =   "元素和："
      Height          =   375
      Left            =   120
      TabIndex        =   2
      Top             =   1800
      Width           =   735
   End
   Begin VB.Label Label1 
      Caption         =   "方阵为："
      Height          =   375
      Left            =   120
      TabIndex        =   0
      Top             =   240
      Width           =   735
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim a() As Integer
Private Sub Command1_Click()
  Dim i As Integer, j As Integer
  ReDim a(6, 6)
  For i = 1 To 6
    For j = 1 To 6
      a(i, j) = 89 * Rnd + 10
      Text1.Text = Text1.Text & a(i, j) & "  "
    Next j
    Text1.Text = Text1.Text & vbCrLf
  Next i
End Sub
Private Sub Command2_Click()
  Call suma(a())
End Sub
Private Sub suma(a() As Integer)
  Dim i As Integer, j As Integer
  Dim sum As Integer
  For i = 1 To UBound(a, 1)
    For j = 1 To UBound(a, 2)
      sum = sum + a(i, j)
    Next j
  Next i
  Label3.Caption = Str(sum)
End Sub