C#動態載入建立程式集

using System;<br />using System.Collections.Generic;<br />using System.Linq;<br />using System.Text;<br />using System.CodeDom.Compiler ;<br />using Microsoft.CSharp ;<br />using System.Reflection ;<br />using System.IO ;</p><p>namespace WpfApplication2<br />{<br /> class CodeDriver<br /> {<br /> private string prefix = "using System;" + "public static class Driver" + "{" + "public static void Run()" + "{" ;<br /> private string postfix = "}" + "}" ;</p><p> public string ComplieAndRun( string input , out bool hasError )<br /> {<br /> hasError = false ;<br /> string returnData = null ;</p><p> CompilerResults results = null ;<br /> using( CSharpCodeProvider provider = new CSharpCodeProvider() )<br /> {<br /> CompilerParameters options = new CompilerParameters() ;<br /> options.GenerateInMemory = true ;</p><p> StringBuilder sb = new StringBuilder() ;<br /> sb.Append( prefix ) ;<br /> sb.Append( input ) ;<br /> sb.Append( postfix ) ;</p><p> results = provider.CompileAssemblyFromSource( options , sb.ToString() ) ;<br /> }</p><p> //如果編譯出錯<br /> if( results.Errors.HasErrors )<br /> {<br /> hasError = true ;<br /> StringBuilder errorMsg = new StringBuilder() ;</p><p> foreach( CompilerError e in results.Errors )<br /> {<br /> errorMsg.AppendFormat( "{0} {1}" , e.Line , e.ErrorText ) ;<br /> }</p><p> returnData = errorMsg.ToString() ;<br /> }<br /> else<br /> {<br /> TextWriter temp = Console.Out ;<br /> StringWriter writer = new StringWriter() ;<br /> Console.SetOut( writer ) ;<br /> Type type = results.CompiledAssembly.GetType( "Driver" ) ;<br /> type.InvokeMember( "Run" , BindingFlags.InvokeMethod | BindingFlags.Static | BindingFlags.Public , null , null ,null ) ;<br /> Console.SetOut( temp ) ;<br /> returnData = writer.ToString() ;<br /> }</p><p> return returnData ;</p><p> }<br /> }<br />}</p><p>