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   源码介绍

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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;
using System.Drawing.Drawing2D;

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

           

           


        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }
        private void form1_Paint(object sender, PaintEventArgs e)
        {

               
        
        
        }

        private void button1_Click(object sender, EventArgs e)
        {

            try
            {
                int x = int.Parse(textBox1.Text);
                int y = int.Parse(textBox2.Text);
                int l = int.Parse(textBox3.Text);

                Pen pen = new Pen(Color.Red);
                pen.Width = 1;
                Point point1 = new Point(x, y);
                Point point2 = new Point(x   l, y);
                Graphics g = this.CreateGraphics();
                g.DrawLine(pen, point1, point2);   



            }
            catch { }             
                  
        }

        private void textBox2_TextChanged(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {
            try
            {
                int x = int.Parse(textBox1.Text);
                int y = int.Parse(textBox2.Text);
                int l = int.Parse(textBox3.Text);

                Pen pen = new Pen(Color.Red);
                pen.Width = 1;
                Point point1 = new Point(x, y);
                Point point2 = new Point(x, y   l);
                Graphics g = this.CreateGraphics();
                g.DrawLine(pen, point1, point2);



            }
            catch { }
                       
        }

        private void button3_Click(object sender, EventArgs e)
        {
            Graphics g = this.CreateGraphics();



            g.Clear(this.BackColor);
        }

        private void button4_Click(object sender, EventArgs e)
        {

            try { 
            
                int x = int.Parse(textBox1.Text);
                int y = int.Parse(textBox2.Text);
                int l = int.Parse(textBox4.Text);
                int w = int.Parse(textBox5.Text);


                Graphics g = this.CreateGraphics();
                Pen pen = new Pen(Color.Red);
                pen.Width = 1;
                Point point1= new Point (x,y);
                Size size1 = new Size(l, w);
                Rectangle r= new Rectangle (point1 , size1);
                g.DrawRectangle(pen,r );
            
             }
            catch{ }





        }

        private void textBox4_TextChanged(object sender, EventArgs e)
        {

        }

        private void button5_Click(object sender, EventArgs e)
        {
             try { 
            
                int x = int.Parse(textBox1.Text);
                int y = int.Parse(textBox2.Text);
                int l = int.Parse(textBox6.Text);
                int w = int.Parse(textBox7.Text);


                Graphics g = this.CreateGraphics();
                Pen pen = new Pen(Color.Red);
                pen.Width = 1;
                Point point1= new Point (x,y);
                Size size1 = new Size(l, w);
                Rectangle r= new Rectangle (point1 , size1);
                g.DrawEllipse(pen, r);
            
             }
            catch{ }
        }
    }
}