遊戲人生 人生遊戲

public static void DisplayTypeAndAddress()
        {
            IPGlobalProperties computerProperties = IPGlobalProperties.GetIPGlobalProperties();
            NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
            Console.WriteLine("Interface information for {0}.{1}     ",
                    computerProperties.HostName, computerProperties.DomainName);
            foreach (NetworkInterface adapter in nics)
            {
                IPInterfaceProperties properties = adapter.GetIPProperties();
                Console.WriteLine(adapter.Description);
                Console.WriteLine(String.Empty.PadLeft(adapter.Description.Length, '='));
                Console.WriteLine("  Interface type .......................... : {0}", adapter.NetworkInterfaceType);
                Console.WriteLine("  Physical Address(網卡實體位置) ........................ : {0}",
                           adapter.GetPhysicalAddress().ToString());
                Console.WriteLine("  Is receive only.......................... : {0}", adapter.IsReceiveOnly);
                Console.WriteLine("  Multicast................................ : {0}", adapter.SupportsMulticast);
            }
            Console.WriteLine("===============================================================");
            //Console.WriteLine("");
            Console.WriteLine("在Physical Address(網卡實體位置)有一個12碼英文加數字的才是正確的!!");
            Console.ReadKey();
        }

讀取大的圖檔時發生記憶體不足的問題。(轉載)
最近常遇到配置Bitmap時發生記憶體不足的怪問題。但程式才使用不到900MB
配置的記憶體也不過才40MB，怎麼算都不會不夠呀。索性測試了一下，發現有一下幾種問題存在。

        /// 程序中System.Text.Encoding.Default是指操作系統的當前 ANSI 代碼頁的編碼。
        public System.Text.Encoding 取得檔案類型(string filename)
        {
            System.IO.FileStream fs = new System.IO.FileStream(filename, System.IO.FileMode.Open, System.IO.FileAccess.Read);
            System.IO.BinaryReader br = new System.IO.BinaryReader(fs);
            Byte[] buffer = br.ReadBytes(2);
            if (buffer[0] >= 0xEF)
            {
                if (buffer[0] == 0xEF && buffer[1] == 0xBB)
                {
                    return System.Text.Encoding.UTF8;
                }
                else if (buffer[0] == 0xFE && buffer[1] == 0xFF)
                {
                    return System.Text.Encoding.BigEndianUnicode;
                }
                else if (buffer[0] == 0xFF && buffer[1] == 0xFE)
                {
                    return System.Text.Encoding.Unicode;
                }
                else
                {
                    return System.Text.Encoding.Default;
                }
            }
            else
            {
                return System.Text.Encoding.Default;
            }
        }

private bool 是否為JPG檔案(string 檔案)
        {
            if (!File.Exists(檔案))
                return false;
            using (System.Drawing.Image img = System.Drawing.Image.FromFile(檔案))
            {
                if (img.RawFormat.Equals(System.Drawing.Imaging.ImageFormat.Jpeg))
                    return  true;
            }
            return false;
        }

PictureBox picture = new PictureBox();
picture.Image = Image.FromFile(@"D:\01.png");
picture.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize;
picture.Location = new Point(30, 10);//加入這一行之後，panel就會出現水平和垂直的Bar
Panel panel = new Panel();

VB.NET
使用 Hex 函數返回數字的十六進制值。
Dim MyHex As String
MyHex = Hex(5) ' Returns 5.
MyHex = Hex(10) ' Returns A.
MyHex = Hex(459) ' Returns 1CB.

2012. 3. 18 更新，版本1.0.2
下載網址:
http://115.com/file/anig1e15#work.zip
說明:

C#:
string s3 = "Visual C# Express";
System.Console.WriteLine(s3.Substring(7, 2)); // outputs "C#"
System.Console.WriteLine(s3.Replace("C#", "Basic")); // outputs "Visual Basic Express"
Substring從0開始算