winform弹出消息自动消失

• 弹出消息后，在指定时间毫秒后消失.
• 消息中包含异常消息，自动一直展示，点击关闭显示；

效果如图

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;

using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Threading;
using System.IO;
using System.Collections;
using System.Drawing.Drawing2D;
using System.Management;

namespace Whl.Tool
{
    /// <summary>
    /// 弹出消息展示，
    /// </summary>
    /// 创建时间：2023-7-7 14:33:05， 
    public class ShowMsgHelpter
    {
        static int lastX = 480;
        static int lastY = 88;

        /// <summary>
        /// 弹出消息展示，消息在8秒后自动消失
        /// </summary>
        /// <param name="msg"></param>
        /// 创建时间：2023-7-7 14:53:21， 
        public static void ShowMsgAutoHide(string msg)
        {
            Label label = new Label();
            label.Text = msg;
            label.AutoSize = true;
            label.BackColor = System.Drawing.Color.White;
            label.Dock = System.Windows.Forms.DockStyle.Fill;
            label.Font = new System.Drawing.Font("宋体", 23F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134)));
            label.Location = new System.Drawing.Point(2, 2);
            //label.Margin = new System.Windows.Forms.Padding(2, 2, 2, 0);
            label.Margin = new System.Windows.Forms.Padding(20);
            label.Name = "label578838";
            label.Size = new System.Drawing.Size(316, 51);
            label.TabIndex = 999;
            label.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;

            Form frm = new Form();
            frm.Padding = new System.Windows.Forms.Padding(20);
            frm.Width = 400;
            frm.Height = 60;
            frm.AutoSize = true;
            frm.FormBorderStyle = FormBorderStyle.None; /*  隐藏边框*/
            frm.BackColor = System.Drawing.Color.GreenYellow;
            frm.StartPosition = FormStartPosition.Manual;
            //frm.SetDesktopLocation(lastX, lastY);
            frm.Location=new Point(lastX, lastY);
            frm.ControlBox = false;
            frm.ShowInTaskbar = false;

            lastX += 100;
            lastY += 88;

            //label点击关闭窗口
            label.Click += (sendr, ev) =>
            {
                frm.Close();
            };

            if (msg.Contains("失败") || msg.Contains("错误") || msg.Contains("异常"))
            {
                label.ForeColor = System.Drawing.Color.Red;

                //点击了关闭窗口
                frm.Click += (sendr, ev) =>
                {
                    frm.Close();
                };
            }
            else
            {
                System.Timers.Timer timer = new System.Timers.Timer(3333);
                timer.AutoReset = false;
                timer.Elapsed += (a, e) =>
                {
                    frm.BeginInvoke(new Action(() => {
                        frm.Close();
                    }));                  
                };
                timer.Start();
            }

            frm.Controls.Add(label);
            frm.Show();

        }

    }
}