原文链接：
在 WPF 中，使用控制台输出日志信息_SaylorLee 的博客 - CSDN 博客_wpf 打印日志
此方法仅在附加了 VS 调试时有效，直接运行（不管是 DEBUG 编译还是 RELEASE 编译）都无效。
核心代码
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>
/// 在程序启动时，执行一次即可
/// </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>
/// 该方法只在退出程序时，调用
/// </summary>
public static void CloseConsole()
{
FreeConsole();
}
public static void WriteLine(string msg)
{
Console.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
Console.WriteLine(msg);
Console.ForegroundColor = ConsoleColor.White;
}
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)
{
Console.ForegroundColor = ConsoleColor.Cyan;
WriteLine(msg);
}
}