C # anonymous method delegate action delegate delegate delegate

Original address: Https://msdn.microsoft.com/zh-cn/library/bb882516.aspx

An anonymous function is an "inline" statement or expression that can be used anywhere a delegate type is required. You can use anonymous functions to initialize a named delegate, or to pass a named delegate (not a named delegate type) as a method parameter.

C # 2.0 introduces anonymous methods, whereas in C # 3.0 and later, LAMBDA expressions replace anonymous methods as the preferred way to write inline code.

Example reference:

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingSystem.Runtime.CompilerServices;5 usingSystem.Security.Cryptography.X509Certificates;6 usingSystem.Text;7 usingSystem.Threading.Tasks;8 9 namespaceconsoletestTen { One     Internal class Program A     { -         Private Static voidMain (string[] args) -         { the      //action Encapsulates a method that has only one parameter and does not return a value.
 See here for more examples: https://msdn.microsoft.com/zh-cn/library/018hxwa8.aspx -             varDD =Newaction<string> (Item) = -             { -                 vars =string. Concat ("AA", item); + Console.Write (s.tostring ()); -             }); +  Add"BB"); at  - Console.readkey (); -         } -  -  -     } in}

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Runtime.CompilerServices;usingSystem.Security.Cryptography.X509Certificates;usingSystem.Text;usingSystem.Threading.Tasks;namespaceconsoletest{Internal classProgram {Private Delegate BOOLDelegateage (intAge ); Private Static voidMain (string[] args) {            //lambda expression notationDelegateage delegateAge1 = (age) + Age > -; Delegateage DelegateAge2= (age) = =            {                returnAge > -;            }; Console.WriteLine (DelegateAge1 ( *)); Console.WriteLine (DelegateAge2 ( the));        Console.readkey (); }    }}

usingSystem;namespaceconsoletest{Internal classProgram {Private Delegate voidDel (); Private Static voidMain (string[] args) {            intn =0; //This can be played without parameters.Del d = () ={System.Console.WriteLine ("Copy #:{0}", ++N);            };            D ();        Console.readkey (); }    }}

usingSystem;usingSystem.IO;namespaceconsoletest{Internal classProgram {Private Delegate voidDel (intAintb); Private Static voidMain (string[] args) {            //multiple parameters in case you can play like thisDel d = (A, b) = ={System.Console.WriteLine ("a+b="+ (A +b).            ToString ());            }; //You can play it like that.Del D2 =Delegate(intAintb) {System.Console.WriteLine ("a+b="+ (A +b).            ToString ());            }; D (4,7); D2 (4,7);        Console.readkey (); }    }}

C # anonymous method delegate action delegate delegate delegate