C#WindowsForm程序同时启动多个窗口类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace MVCProject
{
  /// 

  /// 多窗口同时启动类
  /// 继承ApplicationContext的原因是Application.Run(ApplicationContext context);参数的需要
  /// 另一个是关闭同时启动的窗口
  /// 
  class MultiFormApplictionStart : ApplicationContext
  {
    private void onFormClosed(object sender, EventArgs e)
    {
      if (Application.OpenForms.Count == 0)
      {
        ExitThread();
      }
    }
    public MultiFormApplictionStart()
    {
      /*
       *里面添加启动的窗口
       */
      var formList = new List
(){
      new DJControl(), 
      new DJView()
    };
      foreach (var item in formList)
      {
        item.FormClosed += onFormClosed;
      }
      foreach (var item in formList)
      {
        item.Show();
      }
    }
  }
}

  static class Program
  {
    /// 

    /// 应用程序的主入口点。
    /// 
    [STAThread]
    static void Main()
    {
      Application.EnableVisualStyles();
      Application.SetCompatibleTextRenderingDefault(false);
      Application.Run(new MultiFormApplictionStart());
    }
  }