1 using System;
 2  using System.Windows.Forms;
 3  using System.IO;
 4  using System.CodeDom.Compiler;
 5  using Microsoft.CSharp;
 6  using System.Reflection;
 7 
 8  namespace DynamicCodeCompiler
 9 {
10     public partial class Form1 : Form
11     {
12         string dynammicCode;
13 
14         public Form1()
15         {
16             InitializeComponent();
17         }
18 
19         //打开文件并载入代码
20         private void button1_Click(object sender, EventArgs e)
21         {
22             OpenFileDialog ofd = new OpenFileDialog();
23             ofd.Multiselect = false;
24 
25             if (ofd.ShowDialog()==DialogResult.OK)
26             {
27                 FileStream fs = new FileStream(ofd.FileName,FileMode.Open);
28                 StreamReader sr = new StreamReader(fs);
29                 dynammicCode = sr.ReadToEnd();
30                 textBox1.Text = dynammicCode;
31             }
32         }
33 
34         private void button2_Click(object sender, EventArgs e)
35         {
36             if (textBox1.Text != null)
37             {
38                 // 1.CSharpCodePrivoder
39                 CSharpCodeProvider objCSharpCodePrivoder = new CSharpCodeProvider();
40 
41                 // 2.ICodeComplier
42                 ICodeCompiler objICodeCompiler = objCSharpCodePrivoder.CreateCompiler();
43 
44                 // 3.CompilerParameters
45                 CompilerParameters objCompilerParameters = new CompilerParameters();
46 
47                 //此处添加引用，使用的代码必须在此处有引用否则会编译错误
48                 objCompilerParameters.ReferencedAssemblies.Add("System.dll");
49                 objCompilerParameters.ReferencedAssemblies.Add("System.Windows.Forms.dll");
50                 objCompilerParameters.GenerateExecutable = false;
51                 objCompilerParameters.GenerateInMemory = true;
52 
53                 // 4.CompilerResults
54                 CompilerResults cr = objICodeCompiler.CompileAssemblyFromSource(objCompilerParameters, textBox1.Text);
55 
56                 if (cr.Errors.HasErrors)
57                 {
58                     Console.WriteLine("编译错误：");
59                     foreach (CompilerError err in cr.Errors)
60                     {
61                         Console.WriteLine(err.ErrorText);
62                     }
63                 }
64                 else
65                 {
66                     // 通过反射，调用HelloWorld的实例。此处命名空间和类硬编码为Test.Program。
67                     Assembly objAssembly = cr.CompiledAssembly;
68                     object objDynamicAssenmbly = objAssembly.CreateInstance("Test.Program");
69                     MethodInfo objMI = objDynamicAssenmbly.GetType().GetMethod("Main");
70 
71                     //Console.WriteLine(objMI.Invoke(objDynamicAssenmbly, null));
72                     objMI.Invoke(objDynamicAssenmbly, null);
73                 }
74 
75             }
76         }
77     }
78 }
79