visual studio2022绘制正弦函数图形使用c#语言

您可以使用以下代码绘制正弦函数图形：

using System;
using System.Drawing;
using System.Windows.Forms;

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

        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            Pen blackPen = new Pen(Color.Black, 2);
            Pen redPen = new Pen(Color.Red, 2);

            int width = this.ClientSize.Width;
            int height = this.ClientSize.Height;
            float xScale = width / (float)Math.PI;
            float yScale = height / 2;

            e.Graphics.DrawLine(blackPen, 0, height / 2, width, height / 2);
            e.Graphics.DrawLine(blackPen, width / 2, 0, width / 2, height);

            float x1, y1, x2, y2;
            for (float x = -width / 2; x < width / 2; x += 0.01f)
            {
                x1 = (x + width / 2) / xScale;
                y1 = (float)Math.Sin(x) * yScale + height / 2;
                x2 = (x + width / 2 + 0.01f) / xScale;
                y2 = (float)Math.Sin(x + 0.01f) * yScale + height / 2;
                e.Graphics.DrawLine(redPen, x1, y1, x2, y2);
            }
        }
    }
}

在窗体的构造方法中添加以下代码：

this.Paint += new PaintEventHandler(Form1_Paint);

这样就可以在窗体上绘制正弦函数图形了。