cmd-bat批處理命令延時方法


引用:http://blog.163.com/cb_dt/blog/static/481041420090322011317/?latestBlog

方法一:ping

缺點:時間精度為1秒,不夠精確

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@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

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@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

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@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

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@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

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@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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