我认为 ExecuteSqlRaw 更适合您:

_context.Database.ExecuteSqlRaw("DELETE FROM Users WHERE Name = @p0", "John");

通常 Remove 和 RemoveRange 适用于您已经具有 Primary Key (通常是 Id )的情况对象，在这种情况下，您可以执行以下操作:

Generally Remove and RemoveRange are suitable for situations which you already have Primary Key (usually Id) of objects, in those cases you can do something like this:

_context.Users.Remove(new User {Id = id});