可以在C#中动态添加属性吗？

using System;

public class DynamicPropertyExample
{
    public int MyProperty { get; set; }
}

public class Program
{
    public static void Main()
    {
        DynamicPropertyExample example = new DynamicPropertyExample();
        Type type = example.GetType();

        // 动态添加属性
        TypeBuilder typeBuilder = AppDomain.CurrentDomain.DefineDynamicAssembly(new AssemblyName("DynamicAssembly"), AssemblyBuilderAccess.Run).DefineDynamicModule("DynamicModule").DefineType("DynamicType", TypeAttributes.Public);
        PropertyBuilder propertyBuilder = typeBuilder.DefineProperty("DynamicProperty", PropertyAttributes.HasDefault, typeof(int), null);
        MethodBuilder getMethodBuilder = typeBuilder.DefineMethod("get_DynamicProperty", MethodAttributes.Public | MethodAttributes.SpecialName | MethodAttributes.HideBySig, typeof(int), Type.EmptyTypes);
        ILGenerator getIlGenerator = getMethodBuilder.GetILGenerator();
        getIlGenerator.Emit(OpCodes.Ldc_I4_1);
        getIlGenerator.Emit(OpCodes.Ret);
        MethodBuilder setMethodBuilder = typeBuilder.DefineMethod("set_DynamicProperty", MethodAttributes.Public | MethodAttributes.SpecialName | MethodAttributes.HideBySig, null, new Type[] { typeof(int) });
        ILGenerator setIlGenerator = setMethodBuilder.GetILGenerator();
        setIlGenerator.Emit(OpCodes.Ret);
        typeBuilder.DefineProperty("DynamicProperty", PropertyAttributes.HasDefault, typeof(int), null, getMethodBuilder, setMethodBuilder);

        // 获取动态添加的属性
        PropertyInfo dynamicProperty = typeBuilder.CreateType().GetProperty("DynamicProperty");
        dynamicProperty.SetValue(example, 42);
        Console.WriteLine("DynamicProperty value: " + dynamicProperty.GetValue(example));
    }
}