魔方阵，是把1~n*n个连续的正整数填到一个n*n的方阵中，使得每一行的和、每一列的和、以及两个对角线的和都相等。-Magic square, is to 1 ~ n* n consecutive positive integers into an n* n fill the square, making each row and each column and, as well as two diagonal and are equal.