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±¾ÎÄÀ´×ÔÓÚÍøÂ磬ÊìϤ¼¸¸öÀ༰²¿·ÖÊôÐÔ¡¢·½·¨£ºCSharpCode Provider ¡¢ICodeCompiler¡¢CompilerParameters ¡¢Compiler Results ¡¢Assembly¡£

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using System;
using System.Reflection;
using System.Globalization;
using Microsoft.CSharp;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Text;
namespace ConsoleApplication1
{
public class Program
{
static void Main(string[] args)
{
// 1.CSharpCodePrivoder
CSharpCodeProvider objCSharpCodePrivoder = new CSharpCodeProvider ();
// 2.ICodeComplier
ICodeCompiler objICodeCompiler = objCSharpCode Privoder .CreateCompiler ();


// 3.CompilerParameters
CompilerParameters objCompilerParameters = new CompilerParameters();
objCompilerParameters .ReferencedAssemblies.Add (" System .dll");
objCompilerParameters .GenerateExecutable = false;
objCompilerParameters .GenerateInMemory = true;
// 4.CompilerResults
CompilerResults cr = objICodeCompiler .CompileAssemblyFromSource (objCompiler Parameters , GenerateCode ());
if (cr.Errors .HasErrors)
{
Console.WriteLine ("±àÒë´íÎó£º");
foreach (CompilerError err in cr.Errors)
{
Console.WriteLine (err.ErrorText);
}
}
else
{
// ͨ¹ý·´É䣬µ÷ÓÃHelloWorldµÄʵÀý
Assembly objAssembly = cr.CompiledAssembly;
objectobjHelloWorld = objAssembly.CreateInstance (" DynamicCodeGenerate .HelloWorld ");
MethodInfo objMI = objHelloWorld .GetType () . GetMethod ( "OutPut ");
Console .WriteLine (objMI.Invoke (objHelloWorld, null ));
}
Console.ReadLine();
}
static string GenerateCode()
{
StringBuilder sb = new StringBuilder();
sb.Append ("using System;");
sb.Append (Environment.NewLine);
sb.Append ("namespace DynamicCodeGenerate");
sb.Append (Environment.NewLine);
sb.Append ("{");
sb.Append (Environment.NewLine);
sb.Append (" public class HelloWorld");
sb.Append (Environment.NewLine);
sb.Append ( " {");
sb.Append (Environment.NewLine);
sb.Append (" public string OutPut()");
sb.Append (Environment.NewLine);
sb.Append (" {");
sb.Append (Environment.NewLine);
sb.Append (" return \"Hello world!\";");
sb.Append (Environment.NewLine);
sb.Append (" }");
sb.Append (Environment.NewLine);
sb.Append (" }");
sb.Append (Environment.NewLine);
sb.Append ("}");


string code = sb.ToString();
Console.WriteLine (code);
Console.WriteLine();
return code;
}
}
}
   
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