C#动态编译并执行字符串样例

usingSystem;

usingMicrosoft.CSharp;

usingSystem.CodeDom.Compiler;

classProgram

{

  publicstaticvoidMain()

  {

    // The C# code to execute

    stringcode ="using System; "+

           "using System.IO; "+

           "public class MyClass{ "+

           "  public static void PrintConsole(string message){ "+

           "    Console.WriteLine(message); "+

           "  } "+

           "} ";

    // Compiler and CompilerParameters

    CSharpCodeProvider codeProvider =newCSharpCodeProvider();

    CompilerParameters compParameters =newCompilerParameters();

    // Compile the code

    CompilerResults res = codeProvider.CompileAssemblyFromSource(compParameters, code);

    // Create a new instance of the class 'MyClass'    // 有命名空间的，需要命名空间.类名

    objectmyClass = res.CompiledAssembly.CreateInstance("MyClass");

    // Call the method 'PrintConsole' with the parameter 'Hello World'

    // "Hello World" will be written in console

    myClass.GetType().GetMethod("PrintConsole").Invoke(myClass,newobject[] {"Hello World"});

    Console.Read();

  }

}