最近在网上有这样一个视频,引发了众多网友的讨论,在视频上可以看到有一个超市里面的酸奶,特价卖的比原价还要贵。当时有一款酸奶正在打特价特价的标签,上面写着原价九块九,开发者_运维问答特价十块钱,网友发现这
what is the default pattern using in entity framework? is it the Simple Entities or Change Set? Can you give me a simple code for each one?