c# winform数码管控件

C# WinForm中没有内置的数码管控件，但您可以使用自定义控件来实现数码管效果。以下是一个简单的示例：

1. 创建一个新的 WinForm 应用程序项目。

2. 右键单击项目，选择“添加”>“用户控件”。

3. 将控件重命名为“SevenSegmentDisplay”。

4. 在 SevenSegmentDisplay.cs 文件中，添加以下代码：

using System.Drawing;
using System.Windows.Forms;

public partial class SevenSegmentDisplay : UserControl
{
    private bool[] segments = new bool[7];

    public bool[] Segments
    {
        get { return segments; }
        set { segments = value; }
    }

    public SevenSegmentDisplay()
    {
        InitializeComponent();
    }

    protected override void OnPaint(PaintEventArgs e)
    {
        base.OnPaint(e);

        Graphics g = e.Graphics;
        g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;

        // Draw seven segments
        int segmentWidth = this.Width / 4;
        int segmentHeight = this.Height / 7;
        int x = 0;
        int y = 0;

        // Segment A
        if (segments[0])
            g.FillPolygon(Brushes.Red, new Point[] { new Point(x, y), new Point(x + segmentWidth, y), new Point(x + segmentWidth - segmentHeight / 2, y + segmentHeight / 2), new Point(x + segmentHeight / 2, y + segmentHeight / 2) });

        x += segmentWidth;

        // Segment B
        if (segments[1])
            g.FillPolygon(Brushes.Red, new Point[] { new Point(x + segmentHeight / 2, y), new Point(x + segmentWidth - segmentHeight / 2, y), new Point(x + segmentWidth, y + segmentHeight / 2), new Point(x + segmentWidth - segmentHeight / 2, y + segmentHeight), new Point(x + segmentHeight / 2, y + segmentHeight) });

        x += segmentWidth;

        // Segment C
        if (segments[2])
            g.FillPolygon(Brushes.Red, new Point[] { new Point(x + segmentHeight / 2, y), new Point(x + segmentWidth - segmentHeight / 2, y), new Point(x + segmentWidth, y + segmentHeight / 2), new Point(x + segmentWidth - segmentHeight / 2, y + segmentHeight), new Point(x + segmentHeight / 2, y + segmentHeight) });

        x += segmentWidth;

        // Segment D
        if (segments[3])
            g.FillPolygon(Brushes.Red, new Point[] { new Point(x, y), new Point(x + segmentWidth, y), new Point(x + segmentWidth - segmentHeight / 2, y + segmentHeight / 2), new Point(x + segmentHeight / 2, y + segmentHeight / 2) });

        x = 0;
        y += segmentHeight;

        // Segment E
        if (segments[4])
            g.FillPolygon(Brushes.Red, new Point[] { new Point(x + segmentHeight / 2, y), new Point(x + segmentWidth - segmentHeight / 2, y), new Point(x + segmentWidth, y + segmentHeight / 2), new Point(x + segmentWidth - segmentHeight / 2, y + segmentHeight), new Point(x + segmentHeight / 2, y + segmentHeight) });

        x += segmentWidth;

        // Segment F
        if (segments[5])
            g.FillPolygon(Brushes.Red, new Point[] { new Point(x + segmentHeight / 2, y), new Point(x + segmentWidth - segmentHeight / 2, y), new Point(x + segmentWidth, y + segmentHeight / 2), new Point(x + segmentWidth - segmentHeight / 2, y + segmentHeight), new Point(x + segmentHeight / 2, y + segmentHeight) });

        x += segmentWidth;

        // Segment G
        if (segments[6])
            g.FillPolygon(Brushes.Red, new Point[] { new Point(x, y + segmentHeight / 2), new Point(x + segmentWidth - segmentHeight / 2, y + segmentHeight / 2), new Point(x + segmentWidth, y + segmentHeight / 2 + segmentHeight / 2), new Point(x + segmentWidth / 2, y + segmentHeight), new Point(x + segmentHeight / 2, y + segmentHeight / 2 + segmentHeight / 2) });
    }
}

5. 在 SevenSegmentDisplay.Designer.cs 文件中，添加以下代码：

partial class SevenSegmentDisplay
{
    /// <summary> 
    /// Required designer variable.
    /// </summary>
    private System.ComponentModel.IContainer components = null;

    /// <summary> 
    /// Clean up any resources being used.
    /// </summary>
    /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
    protected override void Dispose(bool disposing)
    {
        if (disposing && (components != null))
        {
            components.Dispose();
        }
        base.Dispose(disposing);
    }

    #region Component Designer generated code

    /// <summary> 
    /// Required method for Designer support - do not modify 
    /// the contents of this method with the code editor.
    /// </summary>
    private void InitializeComponent()
    {
        this.SuspendLayout();
        // 
        // SevenSegmentDisplay
        // 
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.BackColor = System.Drawing.Color.Black;
        this.Name = "SevenSegmentDisplay";
        this.Size = new System.Drawing.Size(150, 250);
        this.ResumeLayout(false);

    }

    #endregion
}

6. 在您的主窗体上，添加一个 SevenSegmentDisplay 控件。

7. 在您的代码中，设置 SevenSegmentDisplay 控件的 Segments 属性，以显示所需的数字。

例如，要显示数字“8”，可以使用以下代码：

SevenSegmentDisplay1.Segments = new bool[] { true, true, true, true, true, true, true };

这将在 SevenSegmentDisplay 控件上显示一个数字“8”。