DEBUG
(debug)
启动Debug 程序,用以测试和调试可执行文件。 
有关DEBUG的命令行语法说明,请在命令提示符后键入DEBUG /?. 
有关DEBUG的命令清单,请在启动Debug后键入?.
Runs Debug, a program testing and editing tool.
DEBUG
[[drive:][path]filename [testfile-parameters]]
  [drive:][path]filename 
Specifies the file you want to test.
  testfile-parameters     Specifies command-line
information required by the file you want to test.
After
Debug starts, type ? to
display a list of debugging commands.