using System;

Console.WriteLine("Hello World");

​

int i = 2 + 2;

iusing 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;

​

​

namespace cursor_pointusing 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;

namespace cursor_point

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        Graphics paper;

        Point p = new Point(0, 0);

        Pen pen = new Pen(Color.Red);

        private void drawLine(Graphics paper)

        {

            paper.DrawLine(pen, new Point(0, 0), p);

        }

        private void moveLine(int mouseX, int mouseY)

        {

            p.X = mouseX;

            p.Y = mouseY;

        }

        private void Form1_MouseMove(object sender, MouseEventArgs e)

        {

            lblXX.Text = e.X.ToString();

            lblYY.Text = e.Y.ToString();

            lblXX.Location = new Point(e.X - lblXX.Width, e.Y);

            lblYY.Location = new Point(e.X, e.Y - lblYY.Height);

            moveLine(e.X, e.Y);

            this.Invalidate();

        }

        private void Form1_Paint(object sender, PaintEventArgs e)

        {

            paper = e.Graphics;

            drawLine(paper);

        }

    }

}

​

{

​

    public partial class Form1 : Form

​

    {

​

        public Form1()

​

        {

​

            InitializeComponent();

​

        }

​

        Graphics paper;

​

        Point p = new Point(0, 0);

​

        Pen pen = new Pen(Color.Red);

​

        private void drawLine(Graphics paper)

​

        {

​

            paper.DrawLine(pen, new Point(0, 0), p);

​

​

        }

​

​

        private void moveLine(int mouseX, int mouseY)

​

        {

​

            p.X = mouseX;

​

            p.Y = mouseY;

​

        }

​

        private void Form1_MouseMove(object sender, MouseEventArgs e)

​

        {

​

            lblXX.Text = e.X.ToString();

​

            lblYY.Text = e.Y.ToString();

​

​

            lblXX.Location = new Point(e.X - lblXX.Width, e.Y);

​

            lblYY.Location = new Point(e.X, e.Y - lblYY.Height);

​

​

            moveLine(e.X, e.Y);

​

            this.Invalidate();

​

        }

​

​

        private void Form1_Paint(object sender, PaintEventArgs e)

​

        {

​

            paper = e.Graphics;

​

            drawLine(paper);

​

        }

​

    }

​

}