stuct、class、typedef

struct Pseat{
    int x;
    int y;
    bool operator==(Pseat& rhs)
    {
        return x==rhs.x&&y==rhs.y;
    }   //操作符重载
};

typedef struct {
    int x;
    int y;
    bool operator==(Pseat& rhs)
    {
        return x==rhs.x&&y==rhs.y;
    }   //操作符重载
}Pseat;

Pseat findNextSeat(Pseat cur,int di)  //结构体是可以直接返回的？
{
    Pseat nextSeat;
    if(di==1)
    {
        nextSeat.x=cur.x+1;
        nextSeat.y=cur.y;
    }
    return nextSeat;
}