c# 精致时钟的代码

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建立一个：项目-windows窗体应用程序

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Drawing;

using System.Data;

using System.Text;

using System.Windows.Forms;

using System.Drawing.Drawing2D;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);

this.SetStyle(ControlStyles.DoubleBuffer, true);

this.SetStyle(ControlStyles.ResizeRedraw, true);

this.SetStyle(ControlStyles.Selectable, true);

this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);

this.SetStyle(ControlStyles.UserPaint, true);

myTimer = new Timer();

myTimer.Interval = 1000;

myTimer.Enabled = true;

myTimer.Tick += new EventHandler(myTimer_Tick);

}

private void myTimer_Tick(object sender, EventArgs e)
{

this.Invalidate();

}

private Timer myTimer;//定义时钟，定时重新绘制

private Graphics g;//创建画布

private Pen pen;//创建画笔

private int width;//画布高度

private int height;//画布宽度

Color hourColor = Color.Red;

/// <summary>

/// 时钟颜色

/// </summary>

[CategoryAttribute("颜色"), Description("时钟颜色")]

public Color HourColor
{

get { return hourColor; }

set { hourColor = value; }

}

Color minuteColor = Color.Green;

/// <summary>

/// 分钟颜色

/// </summary>

[CategoryAttribute("颜色"), Description("分钟颜色")]

public Color MinuteColor
{

get { return minuteColor; }

set { minuteColor = value; }

}

Color secondColor = Color.Blue;

/// <summary>

/// 秒钟颜色

/// </summary>

[CategoryAttribute("颜色"), Description("秒钟颜色")]

public Color SecondColor
{

get { return secondColor; }

set { secondColor = value; }

}

Color bigScaleColor = Color.DarkGreen;

/// <summary>

/// 大刻度颜色

/// </summary>

[CategoryAttribute("颜色"), Description("大刻度颜色")]

public Color BigScaleColor
{

get { return bigScaleColor; }

set { bigScaleColor = value; }

}

Color litterScaleColor = Color.Olive;

/// <summary>

/// 小刻度颜色

/// </summary>

[CategoryAttribute("颜色"), Description("小刻度颜色")]

public Color LitterScaleColor
{

get { return litterScaleColor; }

set { litterScaleColor = value; }

}

Color textColor = Color.White;

/// <summary>

/// 刻度值颜色

/// </summary>

[CategoryAttribute("颜色"), Description("刻度值颜色")]

public Color TextColor
{

get { return textColor; }

set { textColor = value; }

}

Color bigBackColor = Color.Black;

/// <summary>

/// 外圆背景色

/// </summary>

[CategoryAttribute("颜色"), Description("外圆背景颜色")]

public Color BigBackColor
{

get { return bigBackColor; }

set { bigBackColor = value; }

}

Color litterBackColor = Color.White;

/// <summary>

/// 内圆颜色

/// </summary>

[CategoryAttribute("颜色"), Description("内圆颜色")]

public Color LitterBackColor
{

get { return litterBackColor; }

set { litterBackColor = value; }

}

protected override void OnPaint(PaintEventArgs e)
{

base.OnPaint(e);

g = e.Graphics;

g.SmoothingMode = SmoothingMode.AntiAlias; //

g.SmoothingMode = SmoothingMode.HighQuality;//绘图模式默认为粗糙模式，将会出现锯齿！

width = this.Width;//时钟宽度

height = this.Height;//时钟高度

int x1 = 0;//开始绘制时钟起点X坐标

int y1 = 0;//开始绘制时钟起点Y坐标

/*------------------------------------------------------------------------------

计算：整点刻度12个，每个刻度偏移角度为360/12 = 30 度及为小时偏移角度

分秒刻度为60个，每个刻度偏移角度为360/60 = 6 度及为分、秒偏移角度

--------------------------------------------------------------------------------*/

g.FillEllipse(new SolidBrush(bigBackColor), x1 + 2, y1 + 2, width - 4, height - 4); //外圆

pen = new Pen(new SolidBrush(litterBackColor), 2);

g.DrawEllipse(pen, x1 + 7, y1 + 7, width - 13, height - 13);// 内圆

g.TranslateTransform(x1 + (width / 2), y1 + (height / 2));//重新设置坐标原点

g.FillEllipse(Brushes.White, -5, -5, 10, 10);//绘制表盘中心

for (int x = 0; x < 60; x++) //小刻度
{

g.FillRectangle(new SolidBrush(litterScaleColor), new Rectangle(-2, (System.Convert.ToInt16(height - 8) / 2 - 2) * (-1), 3, 10));

g.RotateTransform(6);//偏移角度

}

for (int i = 12; i > 0; i--) //大刻度
{

string myString = i.ToString();

//绘制整点刻度

g.FillRectangle(new SolidBrush(bigScaleColor), new Rectangle(-3, (System.Convert.ToInt16(height - 8) / 2 - 2) * (-1), 6, 20));

//绘制数值

g.DrawString(myString, new Font(new FontFamily("Times New Roman"), 14, FontStyle.Bold, GraphicsUnit.Pixel), new SolidBrush(textColor), new PointF(myString.Length * (-6), (height - 8) / -2 + 26));

//顺时针旋转30度

g.RotateTransform(-30);//偏移角度

}

//获得系统时间值

int second = DateTime.Now.Second;

int minute = DateTime.Now.Minute;

int hour = DateTime.Now.Hour;

/*------------------------------------------------------------------------------------

每秒偏移6度，秒针偏移=当前秒*6

每分偏移6读，分针偏移 = 当前分*6+当前秒*（6/60）

每小时偏移60读，时针偏移 = 当前时*30+当前分*（6/60）+当前秒*（6/60/60）

--------------------------------------------------------------------------------------*/

//绘秒针

pen = new Pen(secondColor, 1);

pen.EndCap = LineCap.ArrowAnchor;

g.RotateTransform(6 * second);

float y = (float)((-1) * (height / 2.75));

g.DrawLine(pen, new PointF(0, 0), new PointF((float)0, y));

////绘分针

pen = new Pen(minuteColor, 4);

pen.EndCap = LineCap.ArrowAnchor;

g.RotateTransform(-6 * second); //恢复系统偏移量，再计算下次偏移

g.RotateTransform((float)(second * 0.1 + minute * 6));

y = (float)((-1) * ((height - 30) / 2.75));

g.DrawLine(pen, new PointF(0, 0), new PointF((float)0, y));

////绘时针

pen = new Pen(hourColor, 6);

pen.EndCap = LineCap.ArrowAnchor;

g.RotateTransform((float)(-second * 0.1 - minute * 6));//恢复系统偏移量，再计算下次偏移

g.RotateTransform((float)(second * 0.01 + minute * 0.1 + hour * 30));

y = (float)((-1) * ((height - 45) / 2.75));

g.DrawLine(pen, new PointF(0, 0), new PointF((float)0, y));

}

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