C++中const的各种用法（待分析）

int i;int &p=i;const int &p=i;int *pp=&i;int* &p=pp;const int* &p;int const *&p;int * const&p;int * &const p;//warning maybe syntax error.int& *p/??syntax error.class A{private:int* pInt;int a;public:A(){pInt=new int[100];//pClass=new B[100];//B b[5]={B(0),B(1),...};memset(pInt,0,sizeof(int)*100);}void g(int i) const{pInt[i]=i;i=3;}void f(int i) const{a=i;}};