Relationship between pointers and Arrays

1. Char ** P, A [16] [8];

Q: Will P = a cause?ProgramIn the future? Why? Yes, because the type of A is Char (*) [8], p is just a pointer to the pointer and there is no array type information.

Does P [1] [2] and a [1] [2] mean the same? P = A; q a [1] [2] = 1; what is the value of P [1] [2?

We should know that the two-dimensional array is also a one-dimensional layout in the memory.
Therefore, a [1] [2] represents 11th elements.
Let's take a look at P [1] [2] Because the p type is Char ** p, p [1] [2] represents the meaning * (p + 1) + 2), P points to a char *, so p + 1 moves 4 bytes forward, + 2 moves 2 bytes forward, and 6 bytes in total. So is that the same.

2.

C: C is a pointer, and it must not be 0.