下面两个声明是等同的，注意二维数组的声明方法，尤其是第一种方法。
// first parameter is an array whose elements are arrays of 10 ints void printValues(int (matrix*)[10], int rowSize); // first parameter is an array whose elements are arrays of 10 ints void printValues(int matrix[][10], int rowSize);
declares matrix to be what looks like a two-dimensioned array. In fact, the parameter is a pointer to an element in an array of arrays. Each element in the array is itself an array of ten ints
下面两个再记一下：
int *matrix[10]; // array of 10 pointers
int (*matrix)[10]; // pointer to an array of 10 ints
