第一个字段是每个记录都必须使用的唯一ID标识符。
The first field is the highly desirable unique id identifier for each record.
使用load方法并传递需要加载的类类型以及记录的标识符值。
You use the load method and pass it the class type you want to load, as well as the identity value for the entry you want.
使用load方法并传递需要加载的类类型以及记录的标识符值。
You use the load method and pass it the class type you want to load, as well as the identity value for the entry you want.
应用推荐