Going back to Listing 6, the only property you really need is the key property.
回到清单6,您真正需要的惟一的属性是key属性。
This indicates that the relationship will be created for a primary key property named: id.
这表示将为名为id的主键属性创建关系。
This indicates that the relationship will be created for a static non-primary key property.
这表明将为一个静态非主键属性创建关系。
应用推荐