派生类怎么访问基类的重载操作啊

[flyrack]

class B
{
    public:
        int operator[](const int i) const {retrun i;}
};

class A: public B
{
   public:
        int operator[](const int i) const {
       retrun B::[i];//??????
       }
}

[FancyMouse]

B::operator[](i)