qfedu-c-level/day9/d9.c

#include <stdio.h>

int main()
{
    int arr[10];
    for (int i = 0; i < 10; i++)
    {
        printf("%d addr %p\n", i, &arr[i]);
    }
    int *p = arr, *q = p + 2;
    int n = q - p; // 计算两个指针之间的元素个数
    printf("%p - %p = %d\n", q, p, n);

    return 0;
}