初始条件：

DOS操作系统。编辑，汇编，连接，调试工具：edit、masm、link、debug

要求完成的主要任务:

产生机关枪声，要求枪声时间可控，由键盘输入控制值。按“Q”键退出

-Initial conditions: DOS operating system. Edit, compile, link, debug tools: edit, masm, link, debug required to complete the main tasks: produce machine gun fire, the time required shots controlled by the keyboard input control value. Press " Q"　key to exit