洪星的博客（原创版，新闻除外）

 1 DateTime n = DateTime.Now;
 2 Console.WriteLine(n);//2010/3/15 14:07:41
 3  Console.WriteLine(n.Kind);//Local
 4  Console.WriteLine();
 5 
 6  string s = n.ToString("u");
 7 Console.WriteLine(s);//2010-03-15 14:07:41Z
 8  DateTime t = DateTime.Parse(s);
 9 Console.WriteLine(t);//2010/3/15 22:07:41
10  Console.WriteLine(t.Kind);//Local
11  Console.WriteLine();
12 
13 string ss = n.ToString("o");
14 Console.WriteLine(ss);//2010-03-15T14:07:41.8178047+08:00
15 DateTime tt = DateTime.Parse(ss);
16 Console.WriteLine(tt);//2010/3/15 14:07:41
17 Console.WriteLine(tt.Kind);//Local

 1 //可以通过比较 NetworkInterface 的 NetworkInterfaceType 筛选不需要的内容
 2  NetworkInterface[] nis = NetworkInterface.GetAllNetworkInterfaces();
 3 foreach (NetworkInterface ni in nis)
 4 {
 5     PhysicalAddress pa = ni.GetPhysicalAddress();
 6     string mac = pa.ToString();
 7 }
 8 
 9 string myHostName = Dns.GetHostName();
10 IPHostEntry ips = Dns.GetHostEntry(myHostName);
11 foreach (IPAddress ip in ips.AddressList)
12 {
13     string ipString = ip.ToString();
14 }
15 

<UserControl x:Class="Hongcing.Silverlight.Create_And_Run_Animation"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Canvas Loaded="LayoutRoot_Loaded" />
</UserControl>

 1 using System;
 2  using System.Windows;
 3  using System.Windows.Controls;
 4  using System.Windows.Media;
 5 using System.Windows.Media.Animation;
 6 using System.Windows.Shapes;
 7 
 8 namespace Hongcing.Silverlight
 9 {
10     public partial class Create_And_Run_Animation : UserControl
11     {
12         public Create_And_Run_Animation()
13         {
14             InitializeComponent();
15         }
16 
17         private void LayoutRoot_Loaded(object sender, RoutedEventArgs e)
18         {
19             var redRectangle = new Rectangle
20             {
21                 Width = 300,
22                 Height = 200,
23                 Fill = new SolidColorBrush(Colors.Red),
24                 Stroke = new SolidColorBrush(Colors.Black)
25             };
26 
27             (sender as Panel).Children.Add(redRectangle);
28 
29             var leftAnimation = new DoubleAnimation
30             {
31                 Duration = new Duration(TimeSpan.FromSeconds(5)),
32                 From = 700,
33                 To = 0
34             };
35 
36             var topAnimation = new DoubleAnimation
37             {
38                 Duration = leftAnimation.Duration,
39                 From = 350,
40                 To = 0
41             };
42 
43             Storyboard.SetTarget(leftAnimation, redRectangle);
44             Storyboard.SetTarget(topAnimation, redRectangle);
45 
46             //属性路径也可以用 new PropertyPath("(Canvas.Left)")、new PropertyPath("(Canvas.Top)")
47             Storyboard.SetTargetProperty(leftAnimation, new PropertyPath(Canvas.LeftProperty));
48             Storyboard.SetTargetProperty(topAnimation, new PropertyPath(Canvas.TopProperty));
49 
50             //此处没有添加到资源中，而是直接启动动画。
51             new Storyboard { Children = { leftAnimation, topAnimation } }.Begin();
52         }
53     }
54 }
55