C#dynamicは動的言語実行時のクラス(強い言語での弱い言語実装)をサポートする

dynamic str="abc";
int number= str; //           ,              (implicitly Convert)   

string json = @"[
  {
    'Title': 'Json.NET is awesome!',
    'Author': {
      'Name': 'James Newton-King',
      'Twitter': '@JamesNK',
      'Picture': '/jamesnk.png'
    },
    'Date': '2013-01-23T19:30:00',
    'BodyHtml': '<h3>Title!</h3>\r
<p>Content!</p>'
  }
]";

dynamic blogPosts = JArray.Parse(json);

dynamic blogPost = blogPosts[0];

string title = blogPost.Title;

Console.WriteLine(title);
// Json.NET is awesome!

string author = blogPost.Author.Name;

Console.WriteLine(author);
// James Newton-King

DateTime postDate = blogPost.Date;

Console.WriteLine(postDate);

//  dynamic          objec   ，    object       ， dynamic           ， object   。 
dynamic nd= 123;
int val  = nd;//                 
objetct obj = 123;
int count = obj; //             ，   Convert.int()            

dynamic d1 = 7;
dynamic d2 = "a string";
dynamic d3 = System.DateTime.Today;
dynamic d4 = System.Diagnostics.Process.GetProcesses();
int i = d1;
string str = d2;
DateTime dt = d3;
System.Diagnostics.Process[] procs = d4;

// dynamic    Dictionary
dynamic data = new Person();
IDictionary<string,object> dic =data as IDictionary<string,object>;
 
// Dictionary      dynamic 
for(KeyValuePair<string,object> item in dic)
{
      ((IDictionary<string,object> )data).add(item.key,item.value);
}

//dynamic    
 dynamic p = Activator.CreateInstance(typeof(person));
 p.talk("muse");


 //  
 var p1 = new person();
 var takdMethod = typeof(person).GetMethod("talk");
 takdMethod.Invoke(p1,new object[] { "kitty"});