C# 窗口程序控制台输出

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace Form1
{
    static class Program
    {
        [DllImport("kernel32.dll")]
        static extern bool FreeConsole();
        [DllImport("kernel32.dll")]
        public static extern bool AllocConsole();

        /// 

        /// 应用程序的主入口点。
        /// 
        [STAThread]
        static void Main()
        {
            AllocConsole();//调用系统API，调用控制台窗口
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
            FreeConsole();//释放控制台
        }
    }
}