一个c#模拟时钟的源代码

 using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;using System.Drawing.Drawing2D;namespace AnalogClock{ public class AnalogClock : System.Windows.Forms.Form { private System.Windows.Forms.Timer timer1; private System.ComponentModel.IContainer components; public AnalogClock() { InitializeComponent(); //初始化； } protected override void Dispose( bool disposing ) { if( disposing ) { if (components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code private void InitializeComponent() { this.components = new System.ComponentModel.Container(); System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(AnalogClock)); this.timer1 = new System.Windows.Forms.Timer(this.components); // // timer1 // this.timer1.Enabled = true; this.timer1.Interval = 1000; this.timer1.Tick += new System.EventHandler(this.OnTick); // // AnalogClock // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.BackColor = System.Drawing.SystemColors.Control; this.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("$this.BackgroundImage"))); this.ClientSize = new System.Drawing.Size(306, 271); this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog; this.MaximizeBox = false; this.Name = "AnalogClock"; this.Text = "模拟时钟 v1.1 neowang008"; this.Load += new System.EventHandler(this.AnalogClock_Load); this.Paint += new System.Windows.Forms.PaintEventHandler(this.OnFormPaint); } #endregion [STAThread] static void Main() { Application.Run(new AnalogClock()); } private void OnFormPaint(object sender, System.Windows.Forms.PaintEventArgs e) { Graphics g = e.Graphics; g.TranslateTransform(ClientSize.Width/2, ClientSize.Height/2, MatrixOrder.Append); DrawClock( e.Graphics ); } private void DrawClock(Graphics g) { const double pai = Math.PI; Point center = new Point (0, 0); DateTime time = DateTime.Now; //读取时间； double secAng = 2.0*pai*time.Second/60.0; double minAng = 2.0*pai*(time.Minute + time.Second/60.0)/60.0; double hourAng = 2.0*pai*(time.Hour + time.Minute/60.0)/12.0; //各指针单位换算； int r = Math.Min( ClientSize.Width, ClientSize.Height ) / 2; int secHandLength = (int)(0.65*r); int minHandLength = (int)(0.6*r); int hourHandLength = (int)(0.5*r); //指针的长度定义； Point secHand = new Point((int)(secHandLength*Math.Sin(secAng)), (int)(-secHandLength*Math.Cos(secAng))); Point minHand = new Point((int)(minHandLength*Math.Sin(minAng)), (int)(-minHandLength*Math.Cos(minAng))); Point hourHand = new Point((int)(hourHandLength*Math.Sin(hourAng)), (int)(-hourHandLength*Math.Cos(hourAng))); //刷新指针； Pen SecPen = new Pen(Color.Red, 1); g.DrawLine(SecPen, center, secHand); Pen MinPen = new Pen(Color.RoyalBlue, 3); g.DrawLine(MinPen, center, minHand); Pen HourPen = new Pen(Color.CornflowerBlue, 5); g.DrawLine(HourPen, center, hourHand); //指针的样式定义； } private void OnTick(object sender, System.EventArgs e) { Invalidate(); } private void AnalogClock_Load(object sender, System.EventArgs e) { } }}