::========倒计时等待15秒======================
@echo off & setlocal enableextensions
echo WScript.Sleep 1000 > %temp%.\tmp$$$.vbs
set /a i = 15
:Timeout
if %i% == 0 goto Next
setlocal
set /a i = %i% - 1
cscript //nologo %temp%.\tmp$$$.vbs
goto Timeout
goto End