简单的时钟适合初学者 using System; using System.Collections.

文件名称: 简单的时钟适合初学者

所属分类: Java

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文件大小: 35kb

下载次数: 0

上传时间: 2010-05-15

提供者: shengy*******

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详细说明： 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 Form1 : Form { public Form1() { 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(); } } } ...展开收缩

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