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asp.net GDI+绘制矩形渐变
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Web; 5 using System.Web.UI; 6 using System.Web.UI.WebControls; 7 using System.Drawing; 8 using System.Drawing.Drawing2D; 9 10 public partial class _Default : System.Web.UI.Page 11 { 12 protected void Page_Load(object sender, EventArgs e) 13 { 14 Bitmap bitmap = new Bitmap(200, 100); 15 Graphics graphics = Graphics.FromImage(bitmap); 16 graphics.Clear(Color.White); 17 Rectangle rectangle = new Rectangle(0, 0, 200, 100); 18 LinearGradientBrush mylineargradientbrush = new LinearGradientBrush(rectangle, Color.White, Color.Green, LinearGradientMode.ForwardDiagonal); 19 graphics.FillRectangle(mylineargradientbrush, 0, 0, 200, 100); 20 System.IO.MemoryStream ms = new System.IO.MemoryStream(); 21 bitmap.Save(ms,System.Drawing.Imaging.ImageFormat.Jpeg); 22 Response.ClearContent(); 23 Response.ContentType="image/Jpeg"; 24 Response.BinaryWrite(ms.ToArray()); 25 } 26 }
asp.net GDI+绘制矩形渐变
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