如何允许我的.net程序在运行时编译C#代码？

dotnet add package System.CodeDom
dotnet add package Microsoft.CSharp

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

class RuntimeCompiler
{
    static void Main()
    {
        string code = @"
            using System;
            namespace RuntimeCompiledNamespace
            {
                public class RuntimeCompiledClass
                {
                    public static int Add(int a, int b)
                    {
                        return a + b;
                    }
                }
            }";

        CSharpCodeProvider provider = new CSharpCodeProvider();
        CompilerResults results = provider.CompileAssemblyFromSource(new CompilerParameters(), code);

        if (results.Errors.Count > 0)
        {
            Console.WriteLine("编译错误：");
            foreach (CompilerError error in results.Errors)
            {
                Console.WriteLine(error.ErrorText);
            }
            return;
        }

        Type compiledType = results.CompiledAssembly.GetType("RuntimeCompiledNamespace.RuntimeCompiledClass");
        object result = compiledType.GetMethod("Add").Invoke(null, new object[] { 1, 2 });
        Console.WriteLine("结果：" + result);
    }
}