d7r4.frm

常用的数值算法的VB程序

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   6345
   ClientLeft      =   1860
   ClientTop       =   750
   ClientWidth     =   7170
   LinkTopic       =   "Form1"
   ScaleHeight     =   6345
   ScaleWidth      =   7170
   Begin VB.CommandButton Command1 
      Caption         =   "Command1"
      Height          =   375
      Left            =   5280
      TabIndex        =   0
      Top             =   5640
      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()
    'PROGRAM D7R4
    'for routine SORT
    Dim A(100)
    Open "D:\VB常用数值算法集\DATA\TARRAY.DAT" For Input As #2
    For I = 1 To 10
        Line Input #2, DUM$
        For J = 1 To 10
            A(10 * (I - 1) + J) = Val(Mid(DUM$, 6 * J - 5, 6))
        Next J
    Next I
    Close (2)
    'Print Original array
    Print "Original array:"
    For I = 1 To 10
        For J = 1 To 10
            Print Tab(7 * (J - 1) + 2); Format$(A(10 * (I - 1) + J), "###.#0");
        Next J
        Print
    Next I
    'Sort array
    Call SORT(100, A())
    'Print sorted array
    Print "Sorted array:"
    For I = 1 To 10
        For J = 1 To 10
            Print Tab(7 * (J - 1) + 2); Format$(A(10 * (I - 1) + J), "###.#0"); "  ";
        Next J
        Print
    Next I
End Sub
Sub SORT(N, RA())
    L = Int(N / 2) + 1
    IR = N
    Do
        If L > 1 Then
            L = L - 1
            RRA = RA(L)
        Else
            RRA = RA(IR)
            RA(IR) = RA(1)
            IR = IR - 1
            If IR = 1 Then
              RA(1) = RRA
              Exit Sub
            End If
        End If
        I = L
        J = L + L
        While J <= IR
            If J < IR Then
                If RA(J) < RA(J + 1) Then J = J + 1
            End If
            If RRA < RA(J) Then
                RA(I) = RA(J)
                I = J
                J = J + J
            Else
                J = IR + 1
            End If
        Wend
        RA(I) = RRA
    Loop
End Sub