在日常维护硬盘的主引导记录时,都感到很棘手。通常的办法是用手工恢复,操作复杂,一般无汇编语言知识的人束手无策,最后还是采取低级格式化方法,这样将丢失硬盘中的大量程序和数据信息。我们从实践中摸索出一个既简单又准确的方法。利用DOS I/O重定向功能“<”把键盘输入程序重定向到由文件输入。我们可以用EDLIN、WPS或WS的编辑功能建立文本文件保存到软盘上,使用时用重定向功能在A提示符下,只用“A>DEBUG<文件名”一条命令,就能自动执行文本文件,并且在执行的同时能将每条指令和执行的结果显示在屏幕上,这样,用户能够清楚地看到程序运行情况,作到心中有数,既简单又方便,具体步骤如下。一、在软盘上建立文件 In the daily maintenance of the hard disk master boot record, feel very difficult. The usual way is to manually restore, complex operation, the general lack of knowledge of assembly language at their fingertips, and finally take the low-level formatting method, this will lose a large number of programs on the hard disk and data information. We have come up with a simple and accurate method in practice. Use DOS I / O redirection “<” to redirect keyboard input to file input. We can use EDLIN, WPS or WS editing function to create a text file saved to a floppy disk, use the redirection function at the A prompt, only “A> DEBUG