指针在数组中的使用

#include <iostream>
#include "myFunction.h"
#include <cstdlib>

using namespace std;

int main()
{
    double score [10];
    double *dptr;

    //dptr= &score[0];
    dptr= score;//上同意

    for (int i=0; i<10; i++)
    {
        score[i] = rand()%100;

    }
    for (int i=0; i<10; i++)
    {
        //cout << "score["<< i << "]=" <<score[i] << endl;
        cout << "score["<< i << "]=" << *dptr++ << endl;//位置加一
        //cout << "score["<< i << "]=" << *(dptr+i) << endl;
        //cout << "score["<< i << "]=" << dptr[i] << endl;//上同意
        cout << "the address inside dptr is:" << dptr << endl;
    }
    cout << "sizeof(int) = " << sizeof(int) << endl;
    cout << "sizeof(double) = " << sizeof(double) << endl;
/*    int counter = 7;
    int *iptr;//*tell us that iptr is a pointer

    iptr = NULL;
    iptr = &counter;//&:adress operator; iptr points to counter

    cout << "counter = " << counter << endl;
    cout << "iptr = " << *iptr << endl;
    *iptr = 31;
    cout << "After *iptr = 31, *iptr=" << *iptr << endl;
    cout << "After *iptr = 31, counter=" << counter << endl;
  */
    return 0;
}