关于动态执行代码(js的Eval)实例详解

// csc.exe noname1.cs /r:C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\Microsoft.JScript.dll 
//注：需加入Microsoft.JScript与Microsoft.Vsa两个命名空间。
public class Class1
{
  static void Main(string[] args)
  {
    System.Console.WriteLine("Hello World");
    string Expression = "var result:int =0;result==1?\"成功\":\"失败\"";
    Microsoft.JScript.Vsa.VsaEngine ve = Microsoft.JScript.Vsa.VsaEngine.CreateEngine();
    Console.WriteLine(Microsoft.JScript.Eval.JScriptEvaluate(Expression, ve));
  }
}

using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;
namespace ScriptProgramming
{
  class Program
  {
    static void Main(string[] args)
    {
      string strExpression = "1+2*3";
      string strResult = Eval(strExpression);
      Console.WriteLine(strExpression + "=" + strResult);
 
      Console.WriteLine("Press any key to continue.");
      Console.ReadKey();
    }
    /// <summary>
    /// 引用com组件Microsoft Script Control
    /// %SystemRoot%\system32\msscript.ocx
    /// 该函数用来动态执行代码
    /// </summary>
    /// <param name="Expression"></param>
    /// <returns></returns>
    public static string Eval(string Expression)
    {
      string strResult = null;
      try
      {
        MSScriptControl.ScriptControlClass jscript = new MSScriptControl.ScriptControlClass();
        jscript.Language = "JScript";        
        strResult = jscript.Eval(Expression).ToString();
      }
      catch (Exception ex)
      {
        Debug.Fail(ex.Message);        
      }
      return strResult;
    }
  }
}