本文实例为大家分享了C#实现钟表程序设计的具体代码,供大家参考,具体内容如下 工作空间: 代码如下: using System;using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Diagnostics; namespace 钟表 { public partial class frmMain : Form { bool flsMouseDown = false; Point fDownPosition; public frmMain() { InitializeComponent(); } private void ctsmiExit_Click(object sender, EventArgs e) { this.Close(); } private void frmMain_MouseDown(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { flsMouseDown = true; fDownPosition = e.Location; //Debug.WriteLine(e.Location); } } private void frmMain_MouseMove(object sender, MouseEventArgs e) { if (flsMouseDown) { this.Left = this.Location.X + (e.X - fDownPosition.X); this.Top = this.Location.Y + (e.Y - fDownPosition.Y); } } private void frmMain_Mouseup(object sender, MouseEventArgs e) { flsMouseDown = false; } private void tmrMain_Tick(object sender, EventArgs e) { this.Refresh();//调用窗体的Paint事件,根据调制的时间来刷新paint时间 } private void fDrawDot(Graphics aGraphics, double aValue, int aRadius)//画出表盘刻度 { double lAngle = ((360 - aValue * 6) + 90) * Math.PI / 180;//根据角度绘画 Point lPoint = new Point((int)(200 + 180 * Math.Cos(lAngle)),//刻度所在的为值 (int)(200 - 180 * Math.Sin(lAngle))); aGraphics.FillEllipse(Brushes.Black, new Rectangle(lPoint.X - aRadius,//FillEllipse为内部填充颜色方法,Rectangle为绘画圆,前俩为圆心坐标,后俩为宽和高 lPoint.Y - aRadius, 2 * aRadius, 2 * aRadius)); } private void fDrawLine(Graphics aGraphics, double aValue, double aLength, Pen aPen)//画出时,分,秒的线 {//aValue为角度值,小时12个刻度每个占30°,分和秒60个刻度每个站6°avalue按照的是一个圆分成60个换成角度乘于6 //aLength是指针的长度 double lAngle = ((360 - aValue * 6) + 90) * Math.PI / 180;//角度转化为数值 Point lPoint = new Point((int)(200 + aLength * Math.Cos(lAngle)),//指针线的终点,坐标x,y通过直角三角求得 (int)(200 - aLength * Math.Sin(lAngle))); aGraphics.DrawLine(aPen, new Point(200, 200), lPoint);//绘制俩点连成一条直线,起点相同都为(200,200) } private void frmMain_Paint(object sender, PaintEventArgs e) { e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;//使指针转动显得平滑 e.Graphics.DrawImage(this.BackgroundImage, 0, 0, 400, 400);//规定表盘的大小和位置 for (int i = 0; i < 60; i++) if (i % 5 == 0) fDrawDot(e.Graphics, i, 6);//绘制钟表刻度,大点和小点 else fDrawDot(e.Graphics, i, 2); DateTime dt = DateTime.Now;//获取时间 Pen pSecond = new Pen(Color.Black, 2); Pen pMinute = new Pen(Color.Red, 2); Pen pHour = new Pen(Color.Blue, 4); fDrawLine(e.Graphics, ((dt.Hour % 12) + dt.Minute / 60.0) * 5, 100, pHour);//绘画时,分,秒指针 fDrawLine(e.Graphics, dt.Minute+dt.Second/60.0,160, pMinute); fDrawLine(e.Graphics, dt.Second+dt.Millisecond/1000.0, 170, pSecond); } Form1.Designer.cs 需添加:(以下代码) this.DoubleBuffered = true;this.Deactivate += new System.EventHandler(this.ctsmiExit_Click); this.Paint += new System.Windows.Forms.PaintEventHandler(this.frmMain_Paint); this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.frmMain_MouseDown); this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.frmMain_MouseMove); this.MouseUp += new System.Windows.Forms.MouseEventHandler(this.frmMain_Mouseup); 以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。 |