Program.cs

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

namespace TCSniffer
{
    static class Program
    {
        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            try
            { 
                Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
                Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(Application_ThreadException);
                AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException);
                Application.EnableVisualStyles();
                Application.SetCompatibleTextRenderingDefault(false);
                Application.Run(new Form1());

            }
            catch (Exception e)
            {
                string str = GetExceptionMsg(e, string.Empty);
                MessageBox.Show(str, "系统错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

        }


        static void Application_ThreadException(object sender, System.Threading.ThreadExceptionEventArgs e)
        {
            string str = GetExceptionMsg(e.Exception, e.ToString());
            MessageBox.Show(str, "系统错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }

        static void CurrentDomain_UnhandledException(object sender, UnhandledExceptionEventArgs e)
        {
            string str = GetExceptionMsg(e.ExceptionObject as Exception, e.ToString());
            MessageBox.Show(str, "系统错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }


        static string GetExceptionMsg(Exception ex, string backStr)
        {
            StringBuilder sb = new StringBuilder();
            sb.AppendLine("****************************异常文本****************************");
            sb.AppendLine("【出现时间】：" + DateTime.Now.ToString());
            if (ex != null)
            {
                sb.AppendLine("【异常类型】：" + ex.GetType().Name+"\n");
                sb.AppendLine("【异常信息】：" + ex.Message + "\n");
                sb.AppendLine("【堆栈调用】：" + ex.StackTrace + "\n");
            }
            else
            {
                sb.AppendLine("【未处理异常】：" + backStr);
            }
            sb.AppendLine("***************************************************************");
            return sb.ToString();
        }

    }



}