生成BG2312字符集（运行于控制台，直接显示于屏幕，如需保存，需用“>”重定向到文件），供处理文字时参考。

同时也是编写控制台程序的范例。-Generate BG2312 character set (running on the console directly displayed on the screen, for preservation, need ">" redirected to a file), while for processing text information.

But also to prepare the sample console application.