元素值通过数组的地址

int main()
{
    char ar1[4][6] = {
        { 'P', 'e', 't', 'e', 'r' },
        { 'J', 'o', 'h', 'n', 'n', 'y' },
        { 'M', 'a', 'r', 'y' },
        { 'K', 'e', 'n', 'n', 'y' }
    };
    char *ar2;
    char *ar3[2];

    ar2 = &ar1[1][1];
    ar3[0] = &ar1[0][0];
    ar3[1] = &ar1[1][0];
    printf("Output5 = %s\n", &ar1[1][4]);
    printf("Output6 = %s\n", ar2-3);
    printf("Output7 = %s\n", ar3[0]+1);
    printf("Output8 = %s\n", ar3[1]+2);
}
int main()
{
    char ar1[4][6] = {
        { '