C#动态编译代码

using System;
using Microsoft.CSharp;
using System.CodeDom.Compiler;
using System.Reflection;

public class Example
{
static void Main()
{
CSharpCodeProvider provider = new CSharpCodeProvider();
CompilerParameters parameter = new CompilerParameters();
parameter.ReferencedAssemblies.Add("System.dll");
parameter.GenerateExecutable = false;
parameter.GenerateInMemory = true;

CompilerResults result = provider.CompileAssemblyFromSource(parameter,
CreateCode("256*56*(145+56.0*254/345)"));//将你的式子放在这里
if (result.Errors.Count > 0)
{
Console.WriteLine("动态编译出错了！");
}
else
{
Assembly assembly = result.CompiledAssembly;
Type AType = assembly.GetType("ANameSpace.AClass");
MethodInfo method = AType.GetMethod("AFunc");
Console.WriteLine(method.Invoke(null, null));
}
Console.Read();
}
static string CreateCode( string para)
{
return "using System; namespace ANameSpace{static class AClass{public static object AFunc(){return "+para+";}}}";
}
}