C# WPF程序增加终端串口打印调试信息

打开 WPF工程该文件

 增加 如下代码：

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Threading.Tasks;
using System.Windows;

public static class ConsoleManager  
{  
    private const string Kernel32_DllName = "kernel32.dll";  
    [DllImport(Kernel32_DllName)]  
    private static extern bool AllocConsole();  
    [DllImport(Kernel32_DllName)]  
    private static extern bool FreeConsole();  
    [DllImport(Kernel32_DllName)]  
    private static extern IntPtr GetConsoleWindow();  
    [DllImport(Kernel32_DllName)]  
    private static extern int GetConsoleOutputCP();  
    public static bool HasConsole  
    {  
        get { return GetConsoleWindow() != IntPtr.Zero; }  
    }  
    /// Creates a new console instance if the process is not attached to a console already.    
    public static void Show()  
    {  
        #if DEBUG    
        if (!HasConsole)  
        {  
            AllocConsole();  
            InvalidateOutAndError();  
        }  
        #endif    
    }  
    /// If the process has a console attached to it, it will be detached and no longer visible. Writing to the System.Console is still possible, but no output will be shown.     
    public static void Hide()  
    {  
        #if DEBUG    
        if (HasConsole)  
        {  
            SetOutAndErrorNull();  
            FreeConsole();  
        }  
        #endif    
    }  
    public static void Toggle()  
    {  
        if (HasConsole)  
        {  
            Hide();  
        }  
        else  
        {  
            Show();  
        }  
    }  
    static void InvalidateOutAndError()  
    {  
        Type type = typeof(System.Console);  
        System.Reflection.FieldInfo _out = type.GetField("_out",  
            System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.NonPublic);  
        System.Reflection.FieldInfo _error = type.GetField("_error",  
            System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.NonPublic);  
        System.Reflection.MethodInfo _InitializeStdOutError = type.GetMethod("InitializeStdOutError",  
            System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.NonPublic);  
        Debug.Assert(_out != null);  
        Debug.Assert(_error != null);  
        Debug.Assert(_InitializeStdOutError != null);  
        _out.SetValue(null, null);  
        _error.SetValue(null, null);  
        _InitializeStdOutError.Invoke(null, new object[] { true });  
    }  
    static void SetOutAndErrorNull()  
    {  
        Console.SetOut(TextWriter.Null);  
        Console.SetError(TextWriter.Null);  
    }  
}  

修改增加运行语句：

    /// <summary>
    /// Interaction logic for App.xaml
    /// </summary>
    public partial class App : Application
    {
        App()
        {
            ConsoleManager.Show();
        }
    }

OK