C-(数组)二维数组

#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<string.h>

int main()
{
    int arr[3][4] = { {1,2,3,4},{5,6,7,8},{9,10,11,12} };
    int i = 0;
    int j = 0;
    for (i = 0; i < 3; i++)
    {
        for (j = 0; j < 4; j++)
        {
            printf("arr[%d][%d]=%d\n", i,j,arr[i][j]);
        }
        printf("\n");
    }
    return 0;
}

#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<string.h>

int main()
{
    int arr[3][4] = { {1,2,3,4},{5,6,7,8},{9,10,11,12} };
    int i = 0;
    int j = 0;
    int* p = &arr[0][0];
    for (i = 0; i < 12; i++)
    {
        printf("%d ", *p);
        p++;
    }
    return 0;
}