Winform基础：Timer组件

属性：
Enabled：启用Elapsed事件的发生。
Interval：Elapsed事件的频率（ms为单位）。

事件：
Tick：每当经过指定的时间间隔时发生。

跑马灯练习：

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        /// <summary>
        /// 跑马灯事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void timer1_Tick(object sender, EventArgs e)
        {
            label1.Text = label1.Text.Substring(1) + label1.Text.Substring(0, 1);
            //MessageBox.Show("Timer组件里的Tick事件//1s");
        }
    }

闹钟：（未完成：1、更改音乐的功能，2、关闭音乐）

public partial class Form1 : Form
    {
        public static int hour;
        public static int minute;
        public static int second;
        public Form1()
        {
            InitializeComponent();
        }
        /// <summary>
        /// 跑马灯事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void timer1_Tick(object sender, EventArgs e)
        {
            label1.Text = label1.Text.Substring(1) + label1.Text.Substring(0, 1);
            //MessageBox.Show("Timer组件里的Tick事件//1s");
        }
        /// <summary>
        /// 把当前时间赋值给labelTime
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void timer2_Tick(object sender, EventArgs e)
        {
            //实时时间
            labelTime.Text = DateTime.Now.ToString();
            //hour:minute:second播放音乐
            if (DateTime.Now.Hour == hour && DateTime.Now.Minute == minute && DateTime.Now.Second == second)
            {
                //播放音乐
                SoundPlayer sp = new SoundPlayer();
                sp.SoundLocation = @"C:\Users\Public\Documents\Adobe\Premiere Pro\14.0\Tutorial\Going Home project\Audio\APM_Adobe_Going Home_v3.wav";
                sp.Play();
            }
        }
        private void labelTime_Click(object sender, EventArgs e)
        {
        }
        /// <summary>
        /// 当窗体加载的时候触发，使label获得现在的本地时间
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_Load(object sender, EventArgs e)
        {
            labelTime.Text = DateTime.Now.ToString();
        }
        private void label1_Click(object sender, EventArgs e)
        {
        }
        private void label3_Click(object sender, EventArgs e)
        {
        }
        /// <summary>
        /// 将用户输入的时分秒赋值
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnSet_Click(object sender, EventArgs e)
        {
            hour = Convert.ToInt32(txtHour.Text);
            minute = Convert.ToInt32(txtMin.Text);
            second = Convert.ToInt32(txtSec.Text);
            MessageBox.Show("设置成功");
        }
        /// <summary>
        /// 关闭程序
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnQuit_Click(object sender, EventArgs e)
        {
            this.Close();
            //MessageBox.Show("关闭成功");
        }
        /// <summary>
        /// 重置用户输入
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnReset_Click(object sender, EventArgs e)
        {
            //用户点击后清空三个文本框
            txtHour.Clear();
            txtMin.Clear();
            txtSec.Clear();
            //让焦点到TxtHour中
            txtHour.Focus();
        }
    }