模拟“扫雷”游戏规则，随机生成地雷分布位置，输出雷区分布图.

主要思路：用随机函数生成表示地雷分布的二维数组。

将二维直角坐标系与二维数组结合，用x轴上0-9的整数表示二维数组的列数，用y轴上0-9的整数表示二维数组 的行数，用随机函数分布生成x,y的值，以此确定地雷的准确位置。

-Analog " mine"　the rules of the game, randomly generated mines location of the output minefield maps main idea: using the random function to generate two-dimensional array of mine distribution. Binding the two-dimensional Cartesian coordinate system, and two-dimensional array, an integer of 0-9 with the x-axis represents the number of columns of the two-dimensional array, an integer of 0-9 with the y-axis represents the number of rows of the two-dimensional array, with the distribution of random function the values ​ ​ of x, y is generated in order to determine the exact location of the mines.