前者做宾语 He hates you and me.他讨厌你和我后者做主语 You and I are good friends.
me是宾格,所以与之相联系的you也是宾格I 是主格,所以与之相联系的you也是主格
you and me 是宾格you and I 是主格比如:You and I are good friends.He will take you and me to his party.
一般没有用前者的吧