研究这个的最初目的是，使用net 6做blazor网站，希望在登录界面实现验证码生成功能，因一直找不到字体文件，所以切换项目实验一下。

winform实现

1.新建窗体程序，使用net 6框架

2.使用Nuget安装相关程序包，SixLabors.ImageSharp和SixLabors.ImageSharp.Drawing(这个使用的是预发行版)

3.在项目根目录中放置字体文件（*.ttf,设置文件属性—复制到输出目录—始终复制）

4.在项目根目录中新建文件保存路径

5.主要生成代码

private void button1_Click(object sender, EventArgs e){pictureBox1.Image = null;int codeW = 100;int codeH = 36;int fontSize = 32;string chkCode = string.Empty;SixLabors.ImageSharp.Color[] color = { SixLabors.ImageSharp.Color.Black, SixLabors.ImageSharp.Color.Red, SixLabors.ImageSharp.Color.Blue, SixLabors.ImageSharp.Color.Green, SixLabors.ImageSharp.Color.Orange, SixLabors.ImageSharp.Color.Brown, SixLabors.ImageSharp.Color.DarkBlue };//string[] font = { "Times New Roman" };//需要将字体放到项目中string[] fonts = { "Arial.ttf" };char[] character = { '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'd', 'e', 'f', 'h', 'k', 'm', 'n', 'r', 'x', 'y', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', 'P', 'R', 'S', 'T', 'W', 'X', 'Y' };//生成验证码字符串Random rnd = new Random();for (int i = 0; i < 4; i++){chkCode += character[rnd.Next(character.Length)];}//写入Session用于验证码校验，可以对校验码进行加密，提高安全性//System.Web.HttpContext.Current.Session["verifyCode"] = chkCode;try{//创建画布var image = new Image<Rgba32>(codeW, codeH);image.Mutate(x => x.BackgroundColor(SixLabors.ImageSharp.Color.White));//Bitmap bmp = new Bitmap(codeW, codeH - 3);//Graphics g = Graphics.FromImage(bmp);//填充背景颜色为白色//g.Clear(Color.White);//画噪线for (int i = 0; i < 3; i++){int x1 = rnd.Next(codeW);int y1 = rnd.Next(codeH);int x2 = rnd.Next(codeW);int y2 = rnd.Next(codeH);image.Mutate(x => x//画实线.DrawLines(color[rnd.Next(color.Length)], //字体颜色1,   //字体大小new SixLabors.ImageSharp.PointF[]{new Vector2(x1, y1),new Vector2(x2, y2)} //两点一线坐标));//Color clr = color[rnd.Next(color.Length)];//g.DrawLine(new Pen(clr), x1, y1, x2, y2);}//画验证码//string bPath = $"{Directory.GetCurrentDirectory()}font/";//string bPath = "C:\\Windows\\Fonts";for (int i = 0; i < chkCode.Length; i++){string fnt = fonts[rnd.Next(fonts.Length)];//var install_Family = new FontCollection().Add(System.IO.Path.Combine(bPath, fnt));var fontTmp = new FontCollection();//var bPath = Environment.CurrentDirectory;//var install_Family = fontTmp.Add($"font/ARIAL.TTF");//var install_Family = fontTmp.Add($"ARIAL.TTF");var install_Family = fontTmp.Add($"./font/Arial.ttf");//var install_Family = fontTmp.Add($"C:/Windows/Fonts/ARIAL.TTF");//var install_Family = fontTmp.Add($"C:/Windows/Fonts/Arial/ARIAL.TTF");var font = new SixLabors.Fonts.Font(install_Family, fontSize);image.Mutate(x => x.DrawText(chkCode[i].ToString(),   //文字内容font,color[rnd.Next(color.Length)],new Vector2((float)i * 20, (float)0)));//将文字写到画布上//Font ft = new Font(fnt, fontSize);//   Color clr = color[rnd.Next(color.Length)];//   g.DrawString(chkCode[i].ToString(), ft, new SolidBrush(clr), (float)i * 18, (float)0);}//画图片的前景噪音点for (int i = 0; i < 15; i++){int x1 = rnd.Next(codeW);int y1 = rnd.Next(codeH);int x2 = x1 + 2;int y2 = y1 + 2;image.Mutate(x => x//画实线.DrawLines(color[rnd.Next(color.Length)], //字体颜色2,   //字体大小new SixLabors.ImageSharp.PointF[]{new Vector2(x1, y1),new Vector2(x2, y2)} //两点一线坐标));}//SixLabors.ImageSharp.Formats.Png.PngTextData//IImageFormat bFormat = new Formats;//ImgStr = image.ToBase64String(SixLabors.ImageSharp.Formats.Png.PngFormat.Instance);image.SaveAsJpeg($"./img/test.jpg");System.Drawing.Image bImg = System.Drawing.Image.FromFile($"./img/test.jpg");pictureBox1.Image = bImg;}catch (Exception ex){string aMsg = ex.Message;}}

blazor server实现

1.新建Blazor Server项目

2.使用Nuget安装相关程序包，SixLabors.ImageSharp和SixLabors.ImageSharp.Drawing(这个使用的是预发行版)

3.在wwwroot中放置字体文件

4.修改Index.razor文件，准备实现生成图片，字体按照相对路径可以进行寻找

@page "/"
@using SixLabors.Fonts;
@using SixLabors.ImageSharp.Drawing.Processing;
@using System.Numerics;<PageTitle>ImageSharp生成图片</PageTitle><button @onclick=CreateImg>生成图片</button>
<img src="@ImgStr"/>
<div>@Yzm</div>
@code{public string ImgStr;public string Yzm;public void CreateImg(){int codeW = 100;int codeH = 36;int fontSize = 32;string chkCode = string.Empty;SixLabors.ImageSharp.Color[] color = { SixLabors.ImageSharp.Color.Black, SixLabors.ImageSharp.Color.Red, SixLabors.ImageSharp.Color.Blue, SixLabors.ImageSharp.Color.Green, SixLabors.ImageSharp.Color.Orange, SixLabors.ImageSharp.Color.Brown, SixLabors.ImageSharp.Color.DarkBlue };//string[] font = { "Times New Roman" };//需要将字体放到项目中string[] fonts = { "Arial.ttf" };char[] character = { '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'd', 'e', 'f', 'h', 'k', 'm', 'n', 'r', 'x', 'y', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', 'P', 'R', 'S', 'T', 'W', 'X', 'Y' };//生成验证码字符串Random rnd = new Random();for (int i = 0; i < 4; i++){chkCode += character[rnd.Next(character.Length)];}//写入Session用于验证码校验，可以对校验码进行加密，提高安全性//System.Web.HttpContext.Current.Session["verifyCode"] = chkCode;try{//创建画布var image = new Image<Rgba32>(codeW, codeH);image.Mutate(x => x.BackgroundColor(SixLabors.ImageSharp.Color.White));//Bitmap bmp = new Bitmap(codeW, codeH - 3);//Graphics g = Graphics.FromImage(bmp);//填充背景颜色为白色//g.Clear(Color.White);//画噪线for (int i = 0; i < 3; i++){int x1 = rnd.Next(codeW);int y1 = rnd.Next(codeH);int x2 = rnd.Next(codeW);int y2 = rnd.Next(codeH);image.Mutate(x => x//画实线.DrawLines(color[rnd.Next(color.Length)], //字体颜色1,   //字体大小new SixLabors.ImageSharp.PointF[]{new Vector2(x1, y1),new Vector2(x2, y2)} //两点一线坐标));//Color clr = color[rnd.Next(color.Length)];//g.DrawLine(new Pen(clr), x1, y1, x2, y2);}//画验证码//string bPath = $"{Directory.GetCurrentDirectory()}font/";//string bPath = "C:\\Windows\\Fonts";for (int i = 0; i < chkCode.Length; i++){string fnt = fonts[rnd.Next(fonts.Length)];//var install_Family = new FontCollection().Add(System.IO.Path.Combine(bPath, fnt));var fontTmp = new FontCollection();//var bPath = Environment.CurrentDirectory;//var install_Family = fontTmp.Add($"font/ARIAL.TTF");//var install_Family = fontTmp.Add($"ARIAL.TTF");var install_Family = fontTmp.Add($"./wwwroot/font/Arial.ttf");//var install_Family = fontTmp.Add($"C:/Windows/Fonts/ARIAL.TTF");//var install_Family = fontTmp.Add($"C:/Windows/Fonts/Arial/ARIAL.TTF");var font = new SixLabors.Fonts.Font(install_Family, fontSize);image.Mutate(x => x.DrawText(chkCode[i].ToString(),   //文字内容font,color[rnd.Next(color.Length)],new Vector2((float)i * 20, (float)0)));//将文字写到画布上//Font ft = new Font(fnt, fontSize);//   Color clr = color[rnd.Next(color.Length)];//   g.DrawString(chkCode[i].ToString(), ft, new SolidBrush(clr), (float)i * 18, (float)0);}//画图片的前景噪音点for (int i = 0; i < 15; i++){int x1 = rnd.Next(codeW);int y1 = rnd.Next(codeH);int x2 = x1 + 2;int y2 = y1 + 2;image.Mutate(x => x//画实线.DrawLines(color[rnd.Next(color.Length)], //字体颜色2,   //字体大小new SixLabors.ImageSharp.PointF[]{new Vector2(x1, y1),new Vector2(x2, y2)} //两点一线坐标));}//SixLabors.ImageSharp.Formats.Png.PngTextData//IImageFormat bFormat = new Formats;//ImgStr = image.ToBase64String(SixLabors.ImageSharp.Formats.Png.PngFormat.Instance);//保存成文件//image.SaveAsJpeg($"./wwwroot/img/test.jpg");//保存成base64字符串using var memoryStream = new MemoryStream();image.Save(memoryStream, SixLabors.ImageSharp.Formats.Png.PngFormat.Instance);var base64String = Convert.ToBase64String(memoryStream.ToArray());ImgStr = $"data:image/jpeg;base64,{base64String}";Yzm = chkCode;}catch (Exception ex){string aMsg = ex.Message;}}}

5.可以正常保存，生成相关图片

blazor webAssembly 实现

1.新建项目

2.使用Nuget安装相关程序包，SixLabors.ImageSharp和SixLabors.ImageSharp.Drawing(这个使用的是预发行版)

3.在wwwroot中放置字体文件

4.修改Index.razor文件，准备实现生成图片，同样的代码，使用上面的那种方式，总是找不到路径，不太理解其运行机制。