查看 System.Dynamic.ExpandoObject 的定义我遇到了这个:
public sealed class ExpandoObject : IDynamicMetaObjectProvider, IDictionary<string, object>, ICollection<KeyValuePair<string, object>>, IEnumerable<KeyValuePair<string, object>>, IEnumerable, INotifyPropertyChanged
{
public ExpandoObject();
}
为什么 ExpandoObject 类不实现接口?