C# 绘制直线/圆形/矩形 （Graphics）

画图工具

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;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }

        private void pictureBox1_Click（object sender EventArgs e）
        {

        }

        private void toolStripMenuItem1_Click（object sender EventArgs e）
        {

        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        569  2018-05-19 08:20  画图软件\Form1.cs

     文件       3259  2018-05-19 08:20  画图软件\Form1.Designer.cs

     文件       6210  2018-05-19 08:20  画图软件\Form1.resx

     文件      12800  2018-06-17 12:48  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.exe

     文件      30208  2018-06-17 12:48  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.pdb

     文件      11600  2018-06-17 12:57  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe

     文件        490  2017-09-29 21:43  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\bin\Debug\WindowsFormsApplication1.vshost.exe.manifest

     文件       3735  2018-06-17 12:56  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\Form1.cs

     文件      11556  2018-06-17 12:55  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\Form1.Designer.cs

     文件       5817  2018-06-17 12:55  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\Form1.resx

     文件       5420  2018-06-11 21:43  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

     文件       6468  2018-06-17 12:48  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件       1186  2018-06-17 12:57  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.csproj.FileListAbsolute.txt

     文件        975  2018-06-17 12:47  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.csproj.GenerateResource.Cache

     文件       9174  2018-06-11 21:45  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.csprojResolveAssemblyReference.cache

     文件      12800  2018-06-17 12:48  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.exe

     文件        180  2018-06-17 12:47  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.Form1.resources

     文件      30208  2018-06-17 12:48  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.pdb

     文件        180  2018-06-03 17:47  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\WindowsFormsApplication1.Properties.Resources.resources

     文件        505  2018-06-03 16:59  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\Program.cs

     文件       1380  2018-06-03 16:59  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\Properties\AssemblyInfo.cs

     文件       2900  2018-06-03 16:59  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\Properties\Resources.Designer.cs

     文件       5612  2018-06-03 16:59  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\Properties\Resources.resx

     文件       1111  2018-06-03 16:59  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\Properties\Settings.Designer.cs

     文件        249  2018-06-03 16:59  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\Properties\Settings.settings

     文件       3707  2018-06-03 16:59  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\WindowsFormsApplication1.csproj

     文件        914  2018-06-03 16:59  画图软件\WindowsFormsApplication1\WindowsFormsApplication1.sln

    ..A..H.     19968  2018-06-17 12:57  画图软件\WindowsFormsApplication1\WindowsFormsApplication1.suo

     目录          0  2018-06-03 16:59  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug\TempPE

     目录          0  2018-06-17 12:48  画图软件\WindowsFormsApplication1\WindowsFormsApplication1\obj\x86\Debug

............此处省略11个文件信息