(五十六)c#Winform自定义控件-瓶子(工业)

用处及效果

准备工作

依然是GDI+  不了解请先百度一下

开始

添加一个类UCBottle,继承UserControl

添加几个控制属性

//瓶身区域
        /// <summary>
        /// The m working rect
        /// </summary>
        Rectangle m_workingRect;

        /// <summary>
        /// The title
        /// </summary>
        string title = "瓶子1";

        /// <summary>
        /// Gets or sets the title.
        /// </summary>
        /// <value>The title.</value>
        [Description("标题"), Category("自定义")]
        public string Title
        {
            get { return title; }
            set
            {
                title = value;
                ResetWorkingRect();
                Refresh();
            }
        }

        /// <summary>
        /// The bottle color
        /// </summary>
        private Color bottleColor = Color.FromArgb(255, 77, 59);

        /// <summary>
        /// Gets or sets the color of the bottle.
        /// </summary>
        /// <value>The color of the bottle.</value>
        [Description("瓶子颜色"), Category("自定义")]
        public Color BottleColor
        {
            get { return bottleColor; }
            set
            {
                bottleColor = value;
                Refresh();
            }
        }

        /// <summary>
        /// The bottle mouth color
        /// </summary>
        private Color bottleMouthColor = Color.FromArgb(105, 105, 105);

        /// <summary>
        /// Gets or sets the color of the bottle mouth.
        /// </summary>
        /// <value>The color of the bottle mouth.</value>
        [Description("瓶口颜色"), Category("自定义")]
        public Color BottleMouthColor
        {
            get { return bottleMouthColor; }
            set { bottleMouthColor = value; }
        }

        /// <summary>
        /// The liquid color
        /// </summary>
        private Color liquidColor = Color.FromArgb(3, 169, 243);

        /// <summary>
        /// Gets or sets the color of the liquid.
        /// </summary>
        /// <value>The color of the liquid.</value>
        [Description("液体颜色"), Category("自定义")]
        public Color LiquidColor
        {
            get { return liquidColor; }
            set
            {
                liquidColor = value;
                Refresh();
            }
        }


        /// <summary>
        /// 获取或设置控件显示的文字的字体。
        /// </summary>
        /// <value>The font.</value>
        /// <PermissionSet>
        ///   <IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
        ///   <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
        ///   <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence" />
        ///   <IPermission class="System.Diagnostics.PerformanceCounterPermission, System, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
        /// </PermissionSet>
        [Description("文字字体"), Category("自定义")]
        public override Font Font
        {
            get
            {
                return base.Font;
            }
            set
            {
                base.Font = value;
                ResetWorkingRect();
                Refresh();
            }
        }

        /// <summary>
        /// 获取或设置控件的前景色。
        /// </summary>
        /// <value>The color of the fore.</value>
        /// <PermissionSet>
        ///   <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
        /// </PermissionSet>
        [Description("文字颜色"), Category("自定义")]
        public override System.Drawing.Color ForeColor
        {
            get
            {
                return base.ForeColor;
            }
            set
            {
                base.ForeColor = value;
                Refresh();
            }
        }

        /// <summary>
        /// The maximum value
        /// </summary>
        private decimal maxValue = 100;

        /// <summary>
        /// Gets or sets the maximum value.
        /// </summary>
        /// <value>The maximum value.</value>
        [Description("最大值"), Category("自定义")]
        public decimal MaxValue
        {
            get { return maxValue; }
            set
            {
                if (value < m_value)
                    return;
                maxValue = value;
                Refresh();
            }
        }

        /// <summary>
        /// The m value
        /// </summary>
        private decimal m_value = 50;

        /// <summary>
        /// Gets or sets the value.
        /// </summary>
        /// <value>The value.</value>
        [Description("值"), Category("自定义")]
        public decimal Value
        {
            get { return m_value; }
            set
            {
                if (value <= 0 || value > maxValue)
                    return;
                m_value = value;
                Refresh();
            }
        }

        /// <summary>
        /// The m no
        /// </summary>
        private string m_NO;
        /// <summary>
        /// Gets or sets the NO.
        /// </summary>
        /// <value>The no.</value>
        [Description("编号"), Category("自定义")]
        public string NO
        {
            get { return m_NO; }
            set
            {
                m_NO = value;
                Refresh();
            }
        }

重绘

protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
            var g = e.Graphics;
            g.SetGDIHigh();
            //写文字
            var size = g.MeasureString(title, Font);
            g.DrawString(title, Font, new SolidBrush(ForeColor), new PointF((this.Width - size.Width) / 2, 2));

            //画空瓶子
            GraphicsPath pathPS = new GraphicsPath();
            Point[] psPS = new Point[] 
            {       
                new Point(m_workingRect.Left, m_workingRect.Top),
                new Point(m_workingRect.Right - 1, m_workingRect.Top),
                new Point(m_workingRect.Right - 1, m_workingRect.Bottom - 15),
                new Point(m_workingRect.Right - 1 - m_workingRect.Width / 4, m_workingRect.Bottom),
                new Point(m_workingRect.Left + m_workingRect.Width / 4, m_workingRect.Bottom),
                new Point(m_workingRect.Left, m_workingRect.Bottom - 15),
            };
            pathPS.AddLines(psPS);
            pathPS.CloseAllFigures();
            g.FillPath(new SolidBrush(bottleColor), pathPS);
            //画液体
            decimal decYTHeight = (m_value / maxValue) * m_workingRect.Height;
            GraphicsPath pathYT = new GraphicsPath();
            Rectangle rectYT = Rectangle.Empty;
            if (decYTHeight < 15)
            {
                PointF[] psYT = new PointF[] 
                { 
                    new PointF((float)(m_workingRect.Left+(15-decYTHeight))+3,(float)(m_workingRect.Bottom-decYTHeight)),                   
                    new PointF((float)(m_workingRect.Right-(15-decYTHeight))-3,(float)(m_workingRect.Bottom-decYTHeight)),  
                    new PointF(m_workingRect.Right-1-m_workingRect.Width/4, m_workingRect.Bottom),
                    new PointF(m_workingRect.Left+m_workingRect.Width/4, m_workingRect.Bottom),
                };
                pathYT.AddLines(psYT);
                pathYT.CloseAllFigures();
                rectYT = new Rectangle((m_workingRect.Left + (15 - (int)decYTHeight)) + 3, m_workingRect.Bottom - (int)decYTHeight - 5, m_workingRect.Width - (int)(15 - decYTHeight) * 2 - 8, 10);
            }
            else
            {
                PointF[] psYT = new PointF[] 
                { 
                    new PointF(m_workingRect.Left,(float)(m_workingRect.Bottom-decYTHeight)),
                    new PointF(m_workingRect.Right-1,(float)(m_workingRect.Bottom-decYTHeight)),
                    new PointF(m_workingRect.Right-1,m_workingRect.Bottom-15),
                    new PointF(m_workingRect.Right-1-m_workingRect.Width/4, m_workingRect.Bottom),
                    new PointF(m_workingRect.Left+m_workingRect.Width/4, m_workingRect.Bottom),
                    new PointF(m_workingRect.Left,m_workingRect.Bottom-15),
                };
                pathYT.AddLines(psYT);
                pathYT.CloseAllFigures();
                rectYT = new Rectangle(m_workingRect.Left, m_workingRect.Bottom - (int)decYTHeight - 5, m_workingRect.Width, 10);
            }

            g.FillPath(new SolidBrush(liquidColor), pathYT);
            g.FillPath(new SolidBrush(Color.FromArgb(50, bottleMouthColor)), pathYT);
            //画液体面
            g.FillEllipse(new SolidBrush(liquidColor), rectYT);
            g.FillEllipse(new SolidBrush(Color.FromArgb(50, Color.White)), rectYT);

            //画高亮
            int intCount = m_workingRect.Width / 2 / 4;
            int intSplit = (255 - 100) / intCount;
            for (int i = 0; i < intCount; i++)
            {
                int _penWidth = m_workingRect.Width / 2 - 4 * i;
                if (_penWidth <= 0)
                    _penWidth = 1;
                g.DrawLine(new Pen(new SolidBrush(Color.FromArgb(10, Color.White)), _penWidth), new Point(m_workingRect.Width / 2, m_workingRect.Top), new Point(m_workingRect.Width / 2, m_workingRect.Bottom - 15));
                if (_penWidth == 1)
                    break;
            }

            //画瓶底
            g.FillEllipse(new SolidBrush(bottleColor), new RectangleF(m_workingRect.Left, m_workingRect.Top - 5, m_workingRect.Width - 2, 10));
            g.FillEllipse(new SolidBrush(Color.FromArgb(50, Color.White)), new RectangleF(m_workingRect.Left, m_workingRect.Top - 5, m_workingRect.Width - 2, 10));
            //画瓶口
            g.FillRectangle(new SolidBrush(bottleMouthColor), new Rectangle(m_workingRect.Left + m_workingRect.Width / 4, m_workingRect.Bottom, m_workingRect.Width / 2, 15));
            //画瓶颈阴影
            GraphicsPath pathPJ = new GraphicsPath();
            Point[] psPJ = new Point[] 
            {       
                new Point(m_workingRect.Left, m_workingRect.Bottom-15),
                new Point(m_workingRect.Right-1, m_workingRect.Bottom-15),
                new Point(m_workingRect.Right-1-m_workingRect.Width/4, m_workingRect.Bottom),
                new Point(m_workingRect.Left+m_workingRect.Width/4, m_workingRect.Bottom)               
            };
            pathPJ.AddLines(psPJ);
            pathPJ.CloseAllFigures();
            g.FillPath(new SolidBrush(Color.FromArgb(50, bottleMouthColor)), pathPJ);

            //写编号
            if (!string.IsNullOrEmpty(m_NO))
            {
                var nosize = g.MeasureString(m_NO, Font);
                g.DrawString(m_NO, Font, new SolidBrush(ForeColor), new PointF((this.Width - nosize.Width) / 2, m_workingRect.Top + 10));
            }
        }

代码就这么多

完整代码

// ***********************************************************************
// Assembly         : HZH_Controls
// Created          : 2019-09-05
//
// ***********************************************************************
// <copyright file="UCBottle.cs">
//     Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
// </copyright>
//
// Blog: https://www.cnblogs.com/bfyx
// GitHub:https://github.com/kwwwvagaa/NetWinformControl
// gitee:https://gitee.com/kwwwvagaa/net_winform_custom_control.git
//
// If you use this code, please keep this note.
// ***********************************************************************
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.ComponentModel;

namespace HZH_Controls.Controls
{
    /// <summary>
    /// Class UCBottle.
    /// Implements the <see cref="System.Windows.Forms.UserControl" />
    /// </summary>
    /// <seealso cref="System.Windows.Forms.UserControl" />
    public class UCBottle : UserControl
    {
        //瓶身区域
        /// <summary>
        /// The m working rect
        /// </summary>
        Rectangle m_workingRect;

        /// <summary>
        /// The title
        /// </summary>
        string title = "瓶子1";

        /// <summary>
        /// Gets or sets the title.
        /// </summary>
        /// <value>The title.</value>
        [Description("标题"), Category("自定义")]
        public string Title
        {
            get { return title; }
            set
            {
                title = value;
                ResetWorkingRect();
                Refresh();
            }
        }

        /// <summary>
        /// The bottle color
        /// </summary>
        private Color bottleColor = Color.FromArgb(255, 77, 59);

        /// <summary>
        /// Gets or sets the color of the bottle.
        /// </summary>
        /// <value>The color of the bottle.</value>
        [Description("瓶子颜色"), Category("自定义")]
        public Color BottleColor
        {
            get { return bottleColor; }
            set
            {
                bottleColor = value;
                Refresh();
            }
        }

        /// <summary>
        /// The bottle mouth color
        /// </summary>
        private Color bottleMouthColor = Color.FromArgb(105, 105, 105);

        /// <summary>
        /// Gets or sets the color of the bottle mouth.
        /// </summary>
        /// <value>The color of the bottle mouth.</value>
        [Description("瓶口颜色"), Category("自定义")]
        public Color BottleMouthColor
        {
            get { return bottleMouthColor; }
            set { bottleMouthColor = value; }
        }

        /// <summary>
        /// The liquid color
        /// </summary>
        private Color liquidColor = Color.FromArgb(3, 169, 243);

        /// <summary>
        /// Gets or sets the color of the liquid.
        /// </summary>
        /// <value>The color of the liquid.</value>
        [Description("液体颜色"), Category("自定义")]
        public Color LiquidColor
        {
            get { return liquidColor; }
            set
            {
                liquidColor = value;
                Refresh();
            }
        }


        /// <summary>
        /// 获取或设置控件显示的文字的字体。
        /// </summary>
        /// <value>The font.</value>
        /// <PermissionSet>
        ///   <IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
        ///   <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
        ///   <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode, ControlEvidence" />
        ///   <IPermission class="System.Diagnostics.PerformanceCounterPermission, System, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
        /// </PermissionSet>
        [Description("文字字体"), Category("自定义")]
        public override Font Font
        {
            get
            {
                return base.Font;
            }
            set
            {
                base.Font = value;
                ResetWorkingRect();
                Refresh();
            }
        }

        /// <summary>
        /// 获取或设置控件的前景色。
        /// </summary>
        /// <value>The color of the fore.</value>
        /// <PermissionSet>
        ///   <IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" />
        /// </PermissionSet>
        [Description("文字颜色"), Category("自定义")]
        public override System.Drawing.Color ForeColor
        {
            get
            {
                return base.ForeColor;
            }
            set
            {
                base.ForeColor = value;
                Refresh();
            }
        }

        /// <summary>
        /// The maximum value
        /// </summary>
        private decimal maxValue = 100;

        /// <summary>
        /// Gets or sets the maximum value.
        /// </summary>
        /// <value>The maximum value.</value>
        [Description("最大值"), Category("自定义")]
        public decimal MaxValue
        {
            get { return maxValue; }
            set
            {
                if (value < m_value)
                    return;
                maxValue = value;
                Refresh();
            }
        }

        /// <summary>
        /// The m value
        /// </summary>
        private decimal m_value = 50;

        /// <summary>
        /// Gets or sets the value.
        /// </summary>
        /// <value>The value.</value>
        [Description("值"), Category("自定义")]
        public decimal Value
        {
            get { return m_value; }
            set
            {
                if (value <= 0 || value > maxValue)
                    return;
                m_value = value;
                Refresh();
            }
        }

        /// <summary>
        /// The m no
        /// </summary>
        private string m_NO;
        /// <summary>
        /// Gets or sets the NO.
        /// </summary>
        /// <value>The no.</value>
        [Description("编号"), Category("自定义")]
        public string NO
        {
            get { return m_NO; }
            set
            {
                m_NO = value;
                Refresh();
            }
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="UCBottle" /> class.
        /// </summary>
        public UCBottle()
        {
            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);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
            this.SizeChanged += UCBottle_SizeChanged;
            this.Size = new Size(100, 150);
        }

        /// <summary>
        /// Handles the SizeChanged event of the UCBottle control.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
        void UCBottle_SizeChanged(object sender, EventArgs e)
        {
            ResetWorkingRect();
        }

        /// <summary>
        /// Resets the working rect.
        /// </summary>
        private void ResetWorkingRect()
        {
            var g = this.CreateGraphics();
            var size = g.MeasureString(title, Font);
            m_workingRect = new Rectangle(0, (int)size.Height + 10, this.Width, this.Height - ((int)size.Height + 10) - 15);
        }

        /// <summary>
        /// 引发 <see cref="E:System.Windows.Forms.Control.Paint" /> 事件。
        /// </summary>
        /// <param name="e">包含事件数据的 <see cref="T:System.Windows.Forms.PaintEventArgs" />。</param>
        protected override void OnPaint(PaintEventArgs e)
        {
            base.OnPaint(e);
            var g = e.Graphics;
            g.SetGDIHigh();
            //写文字
            var size = g.MeasureString(title, Font);
            g.DrawString(title, Font, new SolidBrush(ForeColor), new PointF((this.Width - size.Width) / 2, 2));

            //画空瓶子
            GraphicsPath pathPS = new GraphicsPath();
            Point[] psPS = new Point[] 
            {       
                new Point(m_workingRect.Left, m_workingRect.Top),
                new Point(m_workingRect.Right - 1, m_workingRect.Top),
                new Point(m_workingRect.Right - 1, m_workingRect.Bottom - 15),
                new Point(m_workingRect.Right - 1 - m_workingRect.Width / 4, m_workingRect.Bottom),
                new Point(m_workingRect.Left + m_workingRect.Width / 4, m_workingRect.Bottom),
                new Point(m_workingRect.Left, m_workingRect.Bottom - 15),
            };
            pathPS.AddLines(psPS);
            pathPS.CloseAllFigures();
            g.FillPath(new SolidBrush(bottleColor), pathPS);
            //画液体
            decimal decYTHeight = (m_value / maxValue) * m_workingRect.Height;
            GraphicsPath pathYT = new GraphicsPath();
            Rectangle rectYT = Rectangle.Empty;
            if (decYTHeight < 15)
            {
                PointF[] psYT = new PointF[] 
                { 
                    new PointF((float)(m_workingRect.Left+(15-decYTHeight))+3,(float)(m_workingRect.Bottom-decYTHeight)),                   
                    new PointF((float)(m_workingRect.Right-(15-decYTHeight))-3,(float)(m_workingRect.Bottom-decYTHeight)),  
                    new PointF(m_workingRect.Right-1-m_workingRect.Width/4, m_workingRect.Bottom),
                    new PointF(m_workingRect.Left+m_workingRect.Width/4, m_workingRect.Bottom),
                };
                pathYT.AddLines(psYT);
                pathYT.CloseAllFigures();
                rectYT = new Rectangle((m_workingRect.Left + (15 - (int)decYTHeight)) + 3, m_workingRect.Bottom - (int)decYTHeight - 5, m_workingRect.Width - (int)(15 - decYTHeight) * 2 - 8, 10);
            }
            else
            {
                PointF[] psYT = new PointF[] 
                { 
                    new PointF(m_workingRect.Left,(float)(m_workingRect.Bottom-decYTHeight)),
                    new PointF(m_workingRect.Right-1,(float)(m_workingRect.Bottom-decYTHeight)),
                    new PointF(m_workingRect.Right-1,m_workingRect.Bottom-15),
                    new PointF(m_workingRect.Right-1-m_workingRect.Width/4, m_workingRect.Bottom),
                    new PointF(m_workingRect.Left+m_workingRect.Width/4, m_workingRect.Bottom),
                    new PointF(m_workingRect.Left,m_workingRect.Bottom-15),
                };
                pathYT.AddLines(psYT);
                pathYT.CloseAllFigures();
                rectYT = new Rectangle(m_workingRect.Left, m_workingRect.Bottom - (int)decYTHeight - 5, m_workingRect.Width, 10);
            }

            g.FillPath(new SolidBrush(liquidColor), pathYT);
            g.FillPath(new SolidBrush(Color.FromArgb(50, bottleMouthColor)), pathYT);
            //画液体面
            g.FillEllipse(new SolidBrush(liquidColor), rectYT);
            g.FillEllipse(new SolidBrush(Color.FromArgb(50, Color.White)), rectYT);

            //画高亮
            int intCount = m_workingRect.Width / 2 / 4;
            int intSplit = (255 - 100) / intCount;
            for (int i = 0; i < intCount; i++)
            {
                int _penWidth = m_workingRect.Width / 2 - 4 * i;
                if (_penWidth <= 0)
                    _penWidth = 1;
                g.DrawLine(new Pen(new SolidBrush(Color.FromArgb(10, Color.White)), _penWidth), new Point(m_workingRect.Width / 2, m_workingRect.Top), new Point(m_workingRect.Width / 2, m_workingRect.Bottom - 15));
                if (_penWidth == 1)
                    break;
            }

            //画瓶底
            g.FillEllipse(new SolidBrush(bottleColor), new RectangleF(m_workingRect.Left, m_workingRect.Top - 5, m_workingRect.Width - 2, 10));
            g.FillEllipse(new SolidBrush(Color.FromArgb(50, Color.White)), new RectangleF(m_workingRect.Left, m_workingRect.Top - 5, m_workingRect.Width - 2, 10));
            //画瓶口
            g.FillRectangle(new SolidBrush(bottleMouthColor), new Rectangle(m_workingRect.Left + m_workingRect.Width / 4, m_workingRect.Bottom, m_workingRect.Width / 2, 15));
            //画瓶颈阴影
            GraphicsPath pathPJ = new GraphicsPath();
            Point[] psPJ = new Point[] 
            {       
                new Point(m_workingRect.Left, m_workingRect.Bottom-15),
                new Point(m_workingRect.Right-1, m_workingRect.Bottom-15),
                new Point(m_workingRect.Right-1-m_workingRect.Width/4, m_workingRect.Bottom),
                new Point(m_workingRect.Left+m_workingRect.Width/4, m_workingRect.Bottom)               
            };
            pathPJ.AddLines(psPJ);
            pathPJ.CloseAllFigures();
            g.FillPath(new SolidBrush(Color.FromArgb(50, bottleMouthColor)), pathPJ);

            //写编号
            if (!string.IsNullOrEmpty(m_NO))
            {
                var nosize = g.MeasureString(m_NO, Font);
                g.DrawString(m_NO, Font, new SolidBrush(ForeColor), new PointF((this.Width - nosize.Width) / 2, m_workingRect.Top + 10));
            }
        }
    }
}

最后的话

如果你喜欢的话,请到 https://gitee.com/kwwwvagaa/net_winform_custom_control 点个星星吧

作者:冰封一夏
出处: http://www.hzhcontrols.com/doc.html
本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,
且在文章页面明显位置给出原文连接,否则保留追究法律责任的权利。
GitHub:https://github.com/kwwwvagaa/NetWinformControl
码云:https://gitee.com/kwwwvagaa/net_winform_custom_control.git

原文出处:冰封一夏

原文链接:https://www.cnblogs.com/bfyx/p/11463252.html

本文观点不代表Dotnet9立场,转载请联系原作者。

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