通过使用 TcKs 的答案，也可以使用以下 LINQ 查询来完成:

By using the answer from TcKs it can also be done with the following LINQ query:

bool isBar = foo.GetType().GetInterfaces().Any(x =>
  x.IsGenericType &&
  x.GetGenericTypeDefinition() == typeof(IBar<>));