关于c++的vector嵌套问题

Question

 class Person
{
public:
    CString name;
    CString location;
    CString primary;
    CString junior;
    CString high;
    CString college;
    CString work;

    vector<CString> vecfriends;
    vector<CString> vecgroup;
};
vector<Person> vecperson;

像这样的嵌套，我要访问person中的friends的每一个元素 应该怎么实现，代码怎么写

Answer 1

通过索引

 vecperson[0].vecfriends[0]