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 2         {
 3             //設置畫布字體
 4             System.Drawing.Font drawFont = new System.Drawing.Font("宋體", 12);
 5             //實例一個畫布起始位置為1.1
 6             System.Drawing.Bitmap image = new System.Drawing.Bitmap(1, 1);
 7             System.Drawing.Graphics g = System.Drawing.Graphics.fromImage(image);
 8             //讀取文本內容 原理就跟水印字體一樣.o(∩_∩)o 哈哈....
 9             String text = System.IO.File.ReadAllText(textFile, Encoding.GetEncoding("GB2312"));
10             System.Drawing.SizeF sf = g.MeasureString(text, drawFont, 1024); //設置一個顯示的寬度   
11             image = new System.Drawing.Bitmap(image, new System.Drawing.Size(Convert.ToInt32(sf.Width), Convert.ToInt32(sf.Height)));
12             g = System.Drawing.Graphics.fromImage(image);
13             g.Clear(System.Drawing.Color.White);
14             g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
15             g.DrawString(text, drawFont, System.Drawing.Brushes.Black, new System.Drawing.RectangleF(new System.Drawing.PointF(0, 0), sf));
16             image.Save(imageFile, System.Drawing.Imaging.ImageFormat.Png);
17             g.Dispose();
18             image.Dispose();
19         }