C#数据库查询：读取前10名数据，也就是Order by来排序，按一定规则排序，这是最基础，也是最简单的数据库筛选方法，能查找出前几名、几十名最靠前或最靠后的数据，平时应用广泛-C# database query: read the first 10 data, that is, Order by sort, sorted according to certain rules, which is the most basic and most simple database screening