c#绘图实现公章-唐大仕课程

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing.Drawing2D;

namespace homework8
{
    public partial class Form1 : Form
    {
        Graphics g;
        Pen pen;
        Brush brush;
        Font font;
        int angle = 0;
        public Form1（）
        {
            InitializeComponent（）;
        }

        private void button2_Click（object sender EventArgs e）
        {
            Random rand = new Random（）;
            g = this.CreateGraphics（）;
            pen = new Pen（Color.FromArgb（100 rand.Next（256） rand.Next（256） rand.Next（256）） 8）;
            brush = new SolidBrush（Color.FromArgb（100 rand.Next（256） rand.Next（256） rand.Next（256）））;
            font = new Font（“方正舒体“ 50）;

            

            Rectangle rect = new Rectangle（20+angle50+angle180180）;
            
            //rect.Offset（new Point（angleangle））;      
            g.DrawRectangle（pen rect）;
            g.DrawString（“白 痴“ font brush new PointF（30+angle 60+angle））;
            g.DrawString（“印 章“ font brush new PointF（30+angle 130+angle））;


            g.RotateTransform（angle）;
            angle += 10;


            
        }

        private void timer1_Tick（object sender EventArgs e）
        {
            g.Clear（this.BackColor）;
            button2_Click（sender e）;
        }

        private void Form1_Load（object sender EventArgs e）
        {

        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件      176681  2017-11-23 15:25  第八章\03_BankSystemV1.pdf
     文件       48396  2017-11-23 14:40  第八章\homework8.rar
     目录           0  2017-11-23 14:40  第八章\homework8\
     目录           0  2017-11-23 14:40  第八章\homework8\.vs\
     目录           0  2017-11-23 14:40  第八章\homework8\.vs\homework8\
     目录           0  2017-11-23 14:40  第八章\homework8\.vs\homework8\v14\
     文件       41472  2017-11-15 15:54  第八章\homework8\.vs\homework8\v14\.suo
     文件         994  2017-11-09 20:36  第八章\homework8\homework8.sln
     目录           0  2017-11-23 14:40  第八章\homework8\homework8\
     文件         189  2017-11-09 20:35  第八章\homework8\homework8\App.config
     目录           0  2017-11-23 14:40  第八章\homework8\homework8\bin\
     目录           0  2017-11-23 14:40  第八章\homework8\homework8\bin\Debug\
     文件        9216  2017-11-15 15:53  第八章\homework8\homework8\bin\Debug\homework8.exe
     文件         189  2017-11-09 20:35  第八章\homework8\homework8\bin\Debug\homework8.exe.config
     文件       19968  2017-11-15 15:53  第八章\homework8\homework8\bin\Debug\homework8.pdb
     文件       22696  2017-11-15 15:54  第八章\homework8\homework8\bin\Debug\homework8.vshost.exe
     文件         189  2017-11-09 20:35  第八章\homework8\homework8\bin\Debug\homework8.vshost.exe.config
     文件         490  2016-07-16 19:44  第八章\homework8\homework8\bin\Debug\homework8.vshost.exe.manifest
     文件        1660  2017-11-15 15:53  第八章\homework8\homework8\Form1.cs
     文件        2508  2017-11-09 21:54  第八章\homework8\homework8\Form1.Designer.cs
     文件        6011  2017-11-09 21:54  第八章\homework8\homework8\Form1.resx
     文件        3916  2017-11-09 20:50  第八章\homework8\homework8\homework8.csproj
     目录           0  2017-11-23 14:40  第八章\homework8\homework8\obj\
     目录           0  2017-11-23 14:40  第八章\homework8\homework8\obj\Debug\
     文件        1464  2017-11-15 11:11  第八章\homework8\homework8\obj\Debug\DesignTimeResolveAssemblyReferences.cache
     文件        7132  2017-11-09 20:36  第八章\homework8\homework8\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件         636  2017-11-15 15:54  第八章\homework8\homework8\obj\Debug\homework8.csproj.FileListAbsolute.txt
     文件        1012  2017-11-09 21:54  第八章\homework8\homework8\obj\Debug\homework8.csproj.GenerateResource.Cache
     文件        2384  2017-11-09 20:50  第八章\homework8\homework8\obj\Debug\homework8.csprojResolveAssemblyReference.cache
     文件        9216  2017-11-15 15:53  第八章\homework8\homework8\obj\Debug\homework8.exe
     文件         180  2017-11-09 21:54  第八章\homework8\homework8\obj\Debug\homework8.Form1.resources
............此处省略245个文件信息