c#代码实例1（删除某个文件下后缀名为gif或者jpg的图片）

这段代码还可以扩展成为删除指定文件夹下的指定后缀名的文件

public void deltempupload()
    {
        try
        {
            DirectoryInfo di = new DirectoryInfo(@Server.MapPath("upload/tempupload/"));
            FileInfo[] dii = di.GetFiles();
            if (dii.Length != 0)
            {
                foreach (FileInfo fi in dii)
                {
                    if (fi.Extension == ".gif" || fi.Extension == ".jpg")
                    {
                        fi.Delete();
                    }
                }
            }
        }
        catch (Exception ex)
        {
           
        }
    }