为DOS提供的有力的侦错，跟踪程序运行，检查系统数据的工具程序，它是在字符界面下以单字符命令方式工作。要很好地使用它必须具备一定的汇编程序设计和硬件基本知识的能力，当然，它为汇编语言程序员提供了有效的调试手段，它的功能包括以下几个方面-For DOS provides powerful debugging, running track, check the system data utility, it is in text mode commands work the way a single character. To make good use of it must have some basic assembly programming and hardware knowledge, of course, it provides an effective assembly language programmers debug tool, its capabilities include the following