圖片，服務器的MapPath

Question

爲什麼這項工作：

System.Drawing.Image imageBmp = 
System.Drawing.Image.FromFile(Server.MapPath("~/Images/Image.jpg")); 
imageBmp.Save(Server.MapPath("~/Images2/Image.jpg"), 
System.Drawing.Imaging.ImageFormat.Bmp); 
Bitmap bmp = new Bitmap(imageBmp); 

這不？ （文件名是正確的）

var fileName = Request.QueryString["name"]; 
System.Drawing.Image imageBmp = 
System.Drawing.Image.FromFile(Server.MapPath("~/Images/" + fileName)); 
imageBmp.Save(Server.MapPath("~/Images/" + fileName), 
System.Drawing.Imaging.ImageFormat.Bmp); 
Bitmap bmp = new Bitmap(imageBmp); 

Answer 1

這條線將嘗試將文件保存到本身imageBmp.Save(Server.MapPath("~/Images/" + fileName), System.Drawing.Imaging.ImageFormat.Bmp);

應該imageBmp.Save(Server.MapPath("~/Images2/" + fileName), System.Drawing.Imaging.ImageFormat.Bmp);