C#编写的clock

C#编写的clock

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms;namespace MyClockApp {     public partial class Clock : Form     {         public Clock()         {             InitializeComponent();         }        ///

        /// 得到当前系统时间，并将其拼接成一个字符串         ///

        /// 数字时钟要显示的字符串         public string GetTime()         {             String TimeInString = "";             int hour = DateTime.Now.Hour;             int min = DateTime.Now.Minute;             int sec = DateTime.Now.Second;             //将时，分，秒连成一个字符串             TimeInString = (hour < 10) ? "0" + hour.ToString() : hour.ToString();             TimeInString += ":" + ((min < 10) ? "0" + min.ToString() : min.ToString());             TimeInString += ":" + ((sec < 10) ? "0" + sec.ToString() : sec.ToString());             return TimeInString;         }         ///

        /// 在窗体上画表盘时钟的图形         ///

        ///         ///         ///         private void MyDrawClock(int h, int m, int s)         {             Graphics g = this.CreateGraphics();             Rectangle rect = this.ClientRectangle;            g.Clear(Color.White);            Pen myPen = new Pen(Color.Black, 1);             g.DrawEllipse(myPen, this.ClientRectangle.Width / 2 - 75, this.ClientRectangle.Height / 2-75, 150, 150);//画表盘            Point centerPoint = new Point(this.ClientRectangle.Width / 2, this.ClientRectangle.Height / 2);//表的中心点             //计算出秒针，时针，分针的另外一个商点             Point secPoint = new Point((int)(centerPoint.X + (Math.Sin(s * Math.PI / 30) * 50)), (int)(centerPoint.Y - (Math.Cos(s * Math.PI / 30) * 50)));             Point minPoint = new Point((int)(centerPoint.X + (Math.Sin(m * Math.PI / 30) * 40)), (int)(centerPoint.Y - (Math.Cos(m * Math.PI / 30) * 40)));             Point hourPoint = new Point((int)(centerPoint.X + (Math.Sin(h * Math.PI / 6) * 30) - m * Math.PI / 360), (int)(centerPoint.Y - (Math.Cos(h * Math.PI / 6) * 30) - m * Math.PI / 360));             //以不同颜色和宽度绘制表针             myPen = new Pen(Color.Red, 1);             g.DrawLine(myPen, centerPoint, secPoint);             myPen = new Pen(Color.Green, 2);             g.DrawLine(myPen, centerPoint, minPoint);             myPen = new Pen(Color.Orange, 4);             g.DrawLine(myPen, centerPoint, hourPoint);         }         ///

        /// 定时刷新显示时间         ///

        ///         ///         private void timer1_Tick(object sender, EventArgs e)         {             int h = DateTime.Now.Hour;             int s = DateTime.Now.Second;             int m = DateTime.Now.Minute;            MyDrawClock(h, m, s);             toolStripStatusLabel1.Text = string.Format("{0}:{1}:{2}", h, m, s);             lblTime.Text = GetTime();         }         ///

        /// 若无此方法，时钟也能显示，但要等窗体显示几秒以后表盘才会显示。有了此方法窗体和表盘同时显示         ///

        ///         ///         private void Form1_Paint(object sender, PaintEventArgs e)         {             int h = DateTime.Now.Hour;             int s = DateTime.Now.Second;             int m = DateTime.Now.Minute;            MyDrawClock(h, m, s);             toolStripStatusLabel1.Text = string.Format("{0}:{1}:{2}", h, m, s);             lblTime.Text = GetTime();         }     } }

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