31.winform之Timer（跑马灯效果）

效果图

实现

代码

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

namespace WindowsFormsApp2 {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
        }

        private void timer1_Tick(object sender, EventArgs e) {

            label1.Text  =label1.Text.Substring(1) + label1.Text.Substring(0, 1);
        }
    }
}

定时播放音乐

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Media;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApp2 {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
        }

        private void timer1_Tick(object sender, EventArgs e) {

            label1.Text  =label1.Text.Substring(1) + label1.Text.Substring(0, 1);
        }

        /// <summary>
        /// 每隔1秒钟就把当前时间赋值给label
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void timer2_Tick(object sender, EventArgs e) {

            lblTime.Text = DateTime.Now.ToString();

            //22:10播放音乐
            if (DateTime.Now.Hour == 22 && DateTime.Now.Minute == 10 && DateTime.Now.Second == 50) {

                //播放音乐
                SoundPlayer sp = new SoundPlayer();
                sp.SoundLocation = @"C:Users22053Desktop1.wav";
                sp.Play();
            }
        }

        /// <summary>
        /// 当窗体加载的时候，将当前系统的时间赋值给Label
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_Load(object sender, EventArgs e) {
            lblTime.Text = DateTime.Now.ToString();
        }
    }
}

运行：