form1.frm

IEEE浮点数转换软件

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "将IEEE浮点数转换为十六进制"
   ClientHeight    =   3090
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3090
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.TextBox Text2 
      Height          =   375
      Left            =   720
      TabIndex        =   2
      Top             =   840
      Width           =   2895
   End
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   720
      TabIndex        =   1
      Top             =   240
      Width           =   2895
   End
   Begin VB.CommandButton Command1 
      Caption         =   "转换"
      Height          =   495
      Left            =   1560
      TabIndex        =   0
      Top             =   2040
      Width           =   1335
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
  Function Dec2Hex(DecNum As Double) As String
              Dim DecArr(1)     As String
              Dim HexArr(1)     As String
              Dim Str(16)     As String
              Dim A     As Double, ID       As Long
                
              Dim I     As Long
                
              For I = 0 To 15
                      If I < 10 Then
                            Str(I) = I
                      Else
                            Str(I) = Chr(Asc("A") + I - 10)
                      End If
              Next
    
              DecArr(0) = Fix(DecNum)
              DecArr(1) = DecNum - DecArr(0)
              HexArr(0) = Hex(CStr(DecArr(0)))       '整数部分
                
              If DecArr(1) > 0 Then
                    A = CDbl(DecArr(1))
                    While Not (A = 0 Or ID >= 10)
                                ID = ID + 1
                                A = A * 16#
                                HexArr(1) = HexArr(1) & Str(Fix(A))
                                A = A - Fix(A)
                    Wend
                    Dec2Hex = HexArr(0) & "." & HexArr(1)
              Else
                    Dec2Hex = HexArr(0)
              End If
                
  End Function
    
  Private Sub Command1_Click()
          Text2.Text = Dec2Hex(Text1.Text)
  End Sub