批處理延時啟動的幾個方法

批處理延時啟動的幾個方法  

批處理延時啟動的幾個方法

 

 

 

方法一：ping

缺點:時間精度為1秒,不夠精確

 

@echo off

@ping 127.0.0.1 -n 6 >nul

start gdh.txt

 

方法二：vbs start /wait

缺點：生成臨時文件

有點：時間精度為0.001秒，精度高

 

@echo off

echo wscript.sleep 5000>sleep.vbs

start /wait sleep.vbs

start gdh.txt

del /f /s /q sleep.vbs

 

方法三：vbs cscript

 

@echo off
echo wscript.sleep 5000>sleep.vbs
@cscript sleep.vbs >nul
start gdh.txt
del /f /s /q sleep.vbs

 

方法四：choice

優點：時間精確，CPU占用低，是最佳選擇

 

@echo off
choice /t 5 /d y /n >nul
start gdh.txt

 

方法五：for+set+if，時間精度為0.01秒

缺點：CPU占用高，語句過長，不常用

 

@echo off

setlocal enableextensions

echo %time%
call :ProcDelay 500
echo %time%
start gdh.txt
:ProcDelay delayMSec_
setlocal enableextensions
for /f "tokens=1-4 delims=:. " %%h in ("%time%") do set start_=%%h%%i%%j%%k
:_procwaitloop
for /f "tokens=1-4 delims=:. " %%h in ("%time%") do set now_=%%h%%i%%j%%k
set /a diff_=%now_%-%start_%
if %diff_% LSS %1 goto _procwaitloop
endlocal & goto :EOF

 

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