让我们来看看例如,从official docs: public class Blog
{
public int BlogId { get; set; }
public string Url { get; set; }
public BlogImage BlogImage { get; set; }
}
public class BlogImage
{
为SqlDataReader的铸造数据我这些(例如,共同的数据类型): string name = reader["name"].ToString(); //for string
int i = 0; i = int.TryParse(reader["i"].ToString(), out i); //for int
int i = reader.GetInt32(reader.GetO