wpf 打印控制檯消息

在wpf項目下創建一個類文件 代碼如下：

using System;
using System.Runtime.InteropServices;

namespace xxxxxxx
{
    public class ConsoleLogHelper
    {

        [System.Security.SuppressUnmanagedCodeSecurity]
        [DllImport("kernel32", CharSet = CharSet.Auto)]
        internal static extern bool AllocConsole();

        [System.Security.SuppressUnmanagedCodeSecurity]
        [DllImport("kernel32", CharSet = CharSet.Auto)]
        internal static extern bool FreeConsole();

        /// <summary>
        /// 在程序啓動時，執行一次即可
        /// </summary>
        public static void OpenConsole()
        {
            try
            {
                var consoleTitle = "App Runtime Log";
                AllocConsole();
                Console.BackgroundColor = ConsoleColor.Black;

                Console.CursorVisible = false;
                Console.Title = consoleTitle;
            }
            catch (Exception)
            {
                throw;
            }
        }


        /// <summary>
        /// 該方法只在退出程序時，調用
        /// </summary>
        public static void CloseConsole()
        {
            FreeConsole();
        }

        public static void WriteLine(string msg, ConsoleColor color=ConsoleColor.White)
        {
            Console.ForegroundColor = color;
            Console.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
            Console.WriteLine(msg);
        }
        public static void WriteLineError(string msg)
        {
            Console.ForegroundColor = ConsoleColor.Red;
            WriteLine(msg);
        }

        public static void WriteLineError(Exception ex)
        {
            WriteLineError(ex.Message);
        }

        public static void WriteLineInfo(string msg)
        {
            WriteLine(msg, ConsoleColor.Cyan);
        }

    }
}

App.xaml.cs類 啓動關閉

public partial class App : Application
    {
        protected override void OnStartup(StartupEventArgs e)
        {
            base.OnStartup(e);
            ConsoleLogHelper.OpenConsole();
        }

        protected override void OnExit(ExitEventArgs e)
        {
            base.OnExit(e);
            ConsoleLogHelper.CloseConsole();
        }
    }

ok 可以使用啦

ConsoleLogHelper.WriteLine("Hello World");