在学使用CodeDom来动态生成.cs文件，使用帮助里的例子，代码居然编译不通过自己修改，调试通过，整理后主要代码如下：
命名空间：using System.CodeDom;using System.CodeDom.Compiler;using Microsoft.CSharp;using System.IO;
??private void button1_Click(object sender, System.EventArgs e)??{???CodeCompileUnit CompileUnit = new CodeCompileUnit();???CodeNamespace Samples = new CodeNamespace("Samples");???Samples.Imports.Add( new CodeNamespaceImport("System") );???CompileUnit.Namespaces.Add( Samples );???CodeTypeDeclaration Class1 = new CodeTypeDeclaration("Class1");???Samples.Types.Add(Class1);
???CodeEntryPointMethod Start = new CodeEntryPointMethod();??????//输出HelloWord???CodeMethodInvokeExpression cs1 = new CodeMethodInvokeExpression( new ????CodeTypeReferenceExpression("System.Console"), "WriteLine", new ????CodePrimitiveExpression("Hello World!") );??????Start.Statements.Add(cs1);???

???Class1.Members.Add( Start );???//CSharpCodeProvider provider = new CSharpCodeProvider();???//ICodeGenerator gen = provider.CreateGenerator();???GenerateGraph(CompileUnit);
??}??public void GenerateGraph(CodeCompileUnit compileunit)??{???// Obtains an ICodeGenerator from a CodeDomProvider class.???CSharpCodeProvider provider = new CSharpCodeProvider();???ICodeGenerator gen = provider.CreateGenerator();?? ???// Creates a StreamWriter to an output file.???StreamWriter sw = new StreamWriter("d:\\TestGraph.cs", false);
???// Generates source code using the code generator.???gen.GenerateCodeFromCompileUnit(compileunit, sw, new??? CodeGeneratorOptions());?? ???// Closes the output files.???sw.Close();??}
??private void button2_Click(object sender, System.EventArgs e)??{???CompileCode("d:\\TestGraph.cs");??}??//编辑生成Exe??public CompilerResults CompileCode(string filepath)??{???// Obtains an ICodeCompiler from a CodeDomProvider class.???CSharpCodeProvider provider = new CSharpCodeProvider();???ICodeCompiler compiler = provider.CreateCompiler();
???// Configures a compiler parameters object which links System.dll and ???// generates a file name based on the specified source file name.???CompilerParameters cp = new CompilerParameters(new string[] {"System.dll"}, filepath.Substring(0, filepath.LastIndexOf(".")+1)+"exe", false);
???// Indicates that an executable rather than a .dll should be generated.???cp.GenerateExecutable = true;
???// Invokes compilation. ???CompilerResults cr = compiler.CompileAssemblyFromFile(cp, filepath);??
???// Returns the results of compilation.???return cr;??????? ??}
帮助里的例子在：.NET Framework->使用 .NET Framework 编程->动态生成和编译以多种语言表示的源代码

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