我是VB新手。我想测试一些旧的VB代码,但我需要能够打印到控制台,以便能够测试代码中设置的某些值。如何从VB打印到控制台?
答案 0 :(得分:21)
使用debug.print。但是VB6应用程序上没有控制台,它将打印到调试窗口。
答案 1 :(得分:10)
预计这不会是公认的答案,因为Debug.Print是进行IDE测试的方法。
然而,只是为了展示如何在VB6中轻松使用标准I / O流:
Option Explicit
'
'Reference to Microsoft Scripting Runtime.
'
Public SIn As Scripting.TextStream
Public SOut As Scripting.TextStream
'--- Only required for testing in IDE or Windows Subsystem ===
Private Declare Function AllocConsole Lib "kernel32" () As Long
Private Declare Function GetConsoleTitle Lib "kernel32" _
Alias "GetConsoleTitleA" ( _
ByVal lpConsoleTitle As String, _
ByVal nSize As Long) As Long
Private Declare Function FreeConsole Lib "kernel32" () As Long
Private Allocated As Boolean
Private Sub Setup()
Dim Title As String
Title = Space$(260)
If GetConsoleTitle(Title, 260) = 0 Then
AllocConsole
Allocated = True
End If
End Sub
Private Sub TearDown()
If Allocated Then
SOut.Write "Press enter to continue..."
SIn.ReadLine
FreeConsole
End If
End Sub
'--- End testing ---------------------------------------------
Private Sub Main()
Setup 'Omit for Console Subsystem.
With New Scripting.FileSystemObject
Set SIn = .GetStandardStream(StdIn)
Set SOut = .GetStandardStream(StdOut)
End With
SOut.WriteLine "Any output you want"
SOut.WriteLine "Goes here"
TearDown 'Omit for Console Subsystem.
End Sub
请注意,VB6中实际的Console程序只需要很少的代码。其中大部分是在程序未在控制台子系统中运行时分配控制台窗口。
答案 2 :(得分:3)
答案 3 :(得分:0)
这不是Vb6可以轻松做的事情(我确信它可以完成,但你会调用原生的Win32 API,如果你只是用它来调试它就不值得痛苦)
你最好的选择(恕我直言)是将这些值写入日志文件。