:: BAT纯批处理延时，精确到1秒 By Yu2n
:: 示例：
:: 1. 延时 10 秒：
:: call :xSleep  10
:: 2. 延时23小时：
:: call :xSleep  82800
:: 注意：不支持超过一天的延时(应小于86400秒)

:: 代码如下
@echo off
setlocal enabledelayedexpansion 

call :xSleep 10
pause
goto :eof

:: Call :xSleep_loop 5
goto :eof
:xSleep
  if not defined time_start (
    set/a n_sleep=%~1
    set time_start=%time%
    call :xSleep_Count !time_start!
    if not defined n_star set/a n_star=!dt1c!
  )
  call :xSleep_count %time%
  set/a n_now=%dt1c%
  set/a n_check=%n_star% + %n_sleep% - %n_now%
  if %n_check% geq 0 (
    if "%n_check%" neq "%n_check_last%" echo %n_check% %hns%
    set n_check_last=%n_check%
    ping -w 500 -n 2 0.0.0.0 >nul
    goto :xSleep
  )
  goto :eof
:xSleep_Count
  set dt1=%~1
  for /f "delims=: tokens=1,2,3*" %%i in ("%dt1%") do (
    set dt1h=%%i
    if "!dt1h:~0,1!"=="0" set/a dt1h=!dt1h:~1,1!
    set dt1n=%%j
    if "!dt1n:~0,1!"=="0" set/a dt1n=!dt1n:~1,1!
    set dt1s=%%k
    set dt1s=!dt1s:~0,2!
    if "!dt1s:~0,1!"=="0" set/a dt1s=!dt1s:~1,1!
  )
  set "hns=%dt1h%:%dt1n%:%dt1s%"
  set/a dt1c=(%dt1h% * 60 * 60) + (%dt1n% * 60) + (%dt1s%)
  set/a dt1c=%dt1c% %% (60 * 60 * 24)
  goto :eof
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