程序代码：

int my_memcmp(char *str1, char *str2)
{
    for (int s1 = 0; *(str1 + s1); s1++)
        if (*(str1 + s1) > *(str2 + s1)) return 1;
        else if (*(str1 + s1) < *(str2 + s1)) return -1;

    return 0;
}
void sort_char(char *p_char[N],int n)
{
    printf("%d\n", my_memcmp(p_char[0], p_char[1]));
}
int main()
{    
    char *p_char[N] = { NULL };

    for (int i = 0; i < N; i++)
    {
        p_char[i] = (char *)malloc(sizeof(char) * N*N);
        if (p_char[i] == NULL)
        {
            printf("Allocate memory failure\n");
            exit(1);
        }
        scanf("%s", p_char[i]);
    }
    sort_char(p_char, N);
    for (int i = 0; i < N; i++)
    {
        free(p_char[i]);
        p_char[i] = NULL;
    }
    system("pause");
    return 0;
}

[此贴子已经被作者于2017-10-27 14:43编辑过]

[此贴子已经被作者于2017-10-27 16:34编辑过]