如下有关const的应用,正确的是:
A、const int N=3; const int arr[N] = {1,2,3}; arr[0] = 6;
B、const int N=3; const int arr[N] = {1,2,3}; int * p = arr;
C、const int N=3; const int arr[N] = {1,2,3}; int const* p = arr; //或者 const int *p=arr;
D、const int N=3; const int arr[N] = {1,2,3}; const int *p=arr;