DOSBOX使用的一些方法和注意点（汇编实验中遇到的）

1.切换至全屏模式，用 Alt+Enter 键，再按，会回到原来的窗口模式
下面为DOSBOX中的自述文件（readme）中的原文（一些提示）：
START: How to start?
At the beginning you’ve got a Z:> instead of a C:> at the prompt.
You have to make your directories available as drives in DOSBox by using
the “mount” command. For example, in Windows “mount C D:\GAMES” will give
you a C drive in DOSBox which points to your Windows D:\GAMES directory
(that was created before). In Linux, “mount c /home/username” will give you
a C drive in DOSBox which points to /home/username in Linux.
To change to the drive mounted like above, type “C:”. If everything went
fine, DOSBox will display the prompt “C:>”.

AUTOMATION: Do I always have to type these commands?
In the DOSBox configuration file is an [autoexec] section. The commands
present there are run when DOSBox starts, so you can use this section
for the mounting. Look at Section 13: The configuration (options) file

FULLSCREEN: How do I change to fullscreen?
Press alt-enter. Alternatively: Edit the configuration file of DOSBox and
change the option fullscreen=false to fullscreen=true. If fullscreen looks
wrong in your opinion: Play with the options: fullresolution, output and
aspect in the configuration file of DOSBox. To get back from fullscreen
mode: Press alt-enter again.

2.源文件的名字最好不要超过6个字符，最多不要超过8个字符
3.源文件（.asm）放在MASM放在文件夹里（MASM文件夹中有debug.exe，link.exe等文件，当然，文件夹MASM也可以起成别的名字，参考链接：https://wenku.baidu.com/view/fe639bcdf242336c1fb95e0f.html?rec_flag=default&sxts=1570937469358 ）