Exe7_2

代码说明：

  设计一个9x9的棋盘窗口，用黑白相间颜色填充棋盘。棋盘大小为600x600，标题为“棋盘”，窗口大小不可改变。(The design of a 9x9 board window, with black and white and white and white. The size of the board is 600x600, the title is board , the window size can not be changed.)

文件列表：

Exe7_2.java,772,2015-06-01