Windows的Snipping工具可以捕捉屏幕,但有时我想在五秒钟后捕捉屏幕,例如拍摄网络摄像头显示的图像。(例如,运行脚本并对着镜头微笑。)
如何在批处理文件中休眠5秒?
Windows的Snipping工具可以捕捉屏幕,但有时我想在五秒钟后捕捉屏幕,例如拍摄网络摄像头显示的图像。(例如,运行脚本并对着镜头微笑。)
如何在批处理文件中休眠5秒?
当前回答
如果你有选择或ping,这是可行的。
@echo off
echo.
if "%1"=="" goto askq
if "%1"=="/?" goto help
if /i "%1"=="/h" goto help
if %1 GTR 0 if %1 LEQ 9999 if /i "%2"=="/q" set ans1=%1& goto quiet
if %1 GTR 0 if %1 LEQ 9999 set ans1=%1& goto breakout
if %1 LEQ 0 echo %1 is not a valid number & goto help
if not "%1"=="" echo.&echo "%1" is a bad parameter & goto help
goto end
:help
echo SLEEP runs interactively (by itself) or with parameters (sleep # /q )
echo where # is in seconds, ranges from 1 - 9999
echo Use optional parameter /q to suppress standard output
echo or type /h or /? for this help file
echo.
goto end
:askq
set /p ans1=How many seconds to sleep? ^<1-9999^>
echo.
if "%ans1%"=="" goto askq
if %ans1% GTR 0 if %ans1% LEQ 9999 goto breakout
goto askq
:quiet
choice /n /t %ans1% /d n > nul
if errorlevel 1 ping 1.1.1.1 -n 1 -w %ans1%000 > nul
goto end
:breakout
choice /n /t %ans1% /d n > nul
if errorlevel 1 ping 1.1.1.1 -n 1 -w %ans1%000 > nul
echo Slept %ans1% second^(s^)
echo.
:end
只需将其命名为sleep.cmd或sleep.bat并运行它
其他回答
超时/t 1>nul
就像在1秒内暂停一样,你可以将时间延长到近100.000(99.999)秒。如果您连接到互联网,最好的解决方案是:
平1.1.1.1-n 1-w 1000>无
当你ping时,你的计数单位是毫秒,所以一秒钟就是1000毫秒。但是ping命令有点可疑,它在脱机机器上的工作方式不同。问题是,由于机器处于离线状态,它会感到困惑,它想ping一个网站/服务器/主机/ip,但它不能。所以我建议超时。祝你好运
在Windows xp sp3中,可以使用sleep命令
尝试Choice命令。自MSDOS 6.0以来,它就已经存在了,应该可以做到这一点。
使用/T参数指定超时(以秒为单位),使用/D参数指定默认选择并忽略所选选项。
如果用户在超时时间过去之前键入其中一个选择字符,可能会出现问题。部分解决方法是混淆情况——使用/N参数隐藏有效选项列表,并且在选项集中只有1个字符,这样用户在超时到期之前键入有效选项的可能性就更小了。
以下是Windows Vista上的帮助文本。我认为这在XP上是一样的,但看看XP计算机上的帮助文本来验证。
C:\>CHOICE /?
CHOICE [/C choices] [/N] [/CS] [/T timeout /D choice] [/M text]
Description:
This tool allows users to select one item from a list
of choices and returns the index of the selected choice.
Parameter List:
/C choices Specifies the list of choices to be created.
Default list is "YN".
/N Hides the list of choices in the prompt.
The message before the prompt is displayed
and the choices are still enabled.
/CS Enables case-sensitive choices to be selected.
By default, the utility is case-insensitive.
/T timeout The number of seconds to pause before a default
choice is made. Acceptable values are from 0 to
9999. If 0 is specified, there will be no pause
and the default choice is selected.
/D choice Specifies the default choice after nnnn seconds.
Character must be in the set of choices specified
by /C option and must also specify nnnn with /T.
/M text Specifies the message to be displayed before
the prompt. If not specified, the utility
displays only a prompt.
/? Displays this help message.
NOTE:
The ERRORLEVEL environment variable is set to the index of the
key that was selected from the set of choices. The first choice
listed returns a value of 1, the second a value of 2, and so on.
If the user presses a key that is not a valid choice, the tool
sounds a warning beep. If tool detects an error condition,
it returns an ERRORLEVEL value of 255. If the user presses
CTRL+BREAK or CTRL+C, the tool returns an ERRORLEVEL value
of 0. When you use ERRORLEVEL parameters in a batch program, list
them in decreasing order.
Examples:
CHOICE /?
CHOICE /C YNC /M "Press Y for Yes, N for No or C for Cancel."
CHOICE /T 10 /C ync /CS /D y
CHOICE /C ab /M "Select a for option 1 and b for option 2."
CHOICE /C ab /N /M "Select a for option 1 and b for option 2."
用户Aacini提出的代码的改进,它具有百分之一秒的分辨率,当时间达到23:59:59,99时不会失败:
for /f "tokens=1,2,3,4 delims=:," %%A in ("%TIME%") do set /a HH=%%A, MM=1%%B-100, SS=1%%C-100, CC=1%%D-100, TBASE=((HH*60+MM)*60+SS)*100+CC
:: Example delay 1 seg.
set /a TFIN=%TBASE%+100
:ESPERAR
for /f "tokens=1,2,3,4 delims=:," %%A in ("%TIME%") do set /a HH=%%A, MM=1%%B-100, SS=1%%C-100, CC=1%%D-100, TACTUAL=((HH*60+MM)*60+SS)*100+CC
if %TACTUAL% lss %TBASE% set /a TACTUAL=%TBASE%+%TACTUAL%
if %TACTUAL% lss %TFIN% goto ESPERAR
我试图在msbuild任务中执行此操作,但由于I/O重定向,选择和超时都不起作用。
我最终使用了sleep.exehttp://sourceforge.net/projects/unxutils,这很好,因为它不需要任何安装,而且很小。
尝试选择:
<Target Name="TestCmd">
<Exec Command="choice /C YN /D Y /t 5 " />
</Target>
结果如下:
TestCmd:
choice /C YN /D Y /t 5
EXEC : error : The file is either empty or does not contain the valid choices. [test.proj]
[Y,N]?
C:\test.proj(5,9): error MSB3073: The command "choice /C YN /D Y /t 5 " exited with code 255.
尝试超时:
<Target Name="TestCmd">
<Exec Command="timeout /t 5 " />
</Target>
结果如下:
TestCmd:
timeout /t 5
EXEC : error : Input redirection is not supported, exiting the process immediately. [test.proj]
C:\test.proj(5,7): error MSB3073: The command "timeout /t 5 " exited with code 1.
旁白:
我实际上在使用<Exec Command=“sleep 2&dbghost.exe”/>,因为我正在并行执行dbghostexe多次,它基于当前的时间(以秒为单位)创建临时文件/数据库-这当然意味着如果启动多个实例,每个实例都使用相同的临时名称。我最初尝试使用MSBuild Extension Pack Thread.Sleep命令,但它似乎(通常)运行Sleep任务很好,但随后在所有线程中同时启动<exec>任务,当然dbghost.exe会因冲突而失败。到目前为止,使用sleep.exe似乎更可靠。