说明：  自己编的汇编程序(masm5.0),执行后在DOS窗口显示路径，回车后自身即被删除,设成只读隐藏也不行,所以执行前请作好备份:)
(A DOS assemble language program usng masm5.0,and it can delete itself from the hard disk when running,and even if you set the program file read-only or hidden attribute,so make sure back up the program file before execution :))