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[英]Print file to printer or default printer through command prompt in windows 10
[英]Windows Command Prompt print text file with delay
我对命令提示符没有任何经验,但是我想制作一个批处理脚本(为了好玩和学习),它将在给定位置逐行 打印文本文件 , 延迟1秒 。
我还希望它能够在我按指定的键(例如: space )时暂停/取消暂停 ,并在我按下另一个键(例如: enter )时向我多加一行 (在已编程运行的代码的顶部)。
我知道我可以通过ping localhost ping -n 5 127.0.0.1 > nul
添加1秒的延迟
而且我知道我可以使用more text.txt
来查看文本文件的内容,但是我不知道如何遍历整个文本文件,直到遇到EOF为止,而且我不知道如何暂停/恢复和提供额外的内容线。
希望在这种情况下听起来不会很愚蠢或超出范围,但这只是我很感兴趣的事情,而且我知道这里很多人都有这样做的知识。
1)如果您有编程经验,就会知道使用for
循环是一种最常见的方式,一个接一个地做事,例如逐行地做。
2)您可以简单地使用ping localhost -n 2 >nul
延迟1秒,而ping中的2并不表示2秒,而是1秒。 (我对此一无所知,请习惯一下)
3)当cmd ping时,您不能暂停/取消暂停,我的意思是没有办法强制程序暂停/取消暂停,因为延迟过程只在一行代码中执行! 或者您可以神奇地向其中添加一些代码,例如ping localhost -n 2 pause while(KeyDown(SPACE)) >nul
(只是在开玩笑))
4)多余的线? 嗯...记住批处理不是一种强大的语言,所以...是的
这是一个简单的代码,用于每秒在.txt文件中逐行打印文本
for /f %%a in (your_text.txt) do (
echo %%a
ping localhost -n 2 >nul
)
您可以choice /t 1
(超时1秒)和除空格键以外的其他键来同步执行此操作。 也许P代表暂停?
@echo off
setlocal
set "textfile=notes.txt"
echo Hit P to pause / resume, Q to quit.
echo;
for /f "tokens=1* delims=:" %%I in ('findstr /n "^" "%textfile%"') do (
echo(%%J
choice /t 1 /c €pq /d € >NUL
if errorlevel 3 exit /b 0
if errorlevel 2 (
pause >NUL
ping -n 1 -w 750 169.254.1.1 >NUL
)
)
exit /b 0
不幸的是, choice
只允许使用az,AZ,0-9和扩展字符128-254。 无法使其监听Enter或Space 。 而且choice
是我知道的唯一Windows命令,它将接受一次按键并根据所按下的按键执行有意义的操作。
我认为您必须使用某种编译语言(或者可能是带有.NET类的PowerShell?)来侦听控制台上的按键事件 。 您可能可以使用JavaScript进行此操作,但必须在Web浏览器或HTA窗口中显示输出。
“滚动编辑器”? 这是一个疯狂的主意,不是吗? 我喜欢! ;-)
我通过了您的项目并添加了一些要点...
@echo off
rem ScrollEditor.bat: "dynamic" very simple line editor
rem Antonio Perez Ayala aka Aacini
if "%~1" neq "" if "%~1" neq "/?" goto begin
echo ScrollEditor.bat filename.ext
echo/
echo File lines will be continually scrolling, one per second.
echo/
echo You may pause the scroll via P key. In the "paused" state, the last displayed
echo line is named "current line", and the following commands are active:
echo/
echo #L Return/advance the listing to line #; continue the scroll from there.
echo [#]D Delete [from previous line # up to] current line.
echo I Insert lines after current line; end insert with *two* empty lines.
echo P End "paused" state; continue the scroll from current line on.
echo E End edit and save file, keep original file with .bak extension.
echo Q Quit edit, not save file.
goto :EOF
:begin
if not exist %1 echo File not found & goto :EOF
rem Load file lines into "line" array
set /P "=Loading file... " < NUL
setlocal DisableDelayedExpansion
for /F "tokens=1* delims=:" %%a in ('findstr /N "^" %1') do (
set "line[%%a]=%%b"
set "lastLine=%%a"
)
echo last line: %lastLine%
echo To pause scrolling, press: P
echo/
setlocal EnableDelayedExpansion
set "validCommands=LDIPEQ"
set currentLine=1
:command-P End "paused" state
:ScrollLine
if %currentLine% gtr %lastLine% (
set "currentLine=%lastLine%"
echo EOF
goto GetCommand
)
set "num= %currentLine%"
echo %num:~-4%: !line[%currentLine%]!
set /A currentLine+=1
choice /C PC /N /T 1 /D C >NUL
if errorlevel 2 goto ScrollLine
rem Enter paused state
set /A currentLine-=1
:GetCommand
echo/
set /P "command=Command [#L,#D,I,P,E,Q]? "
set "letter=%command:~-1%"
if "!validCommands:%letter%=!" equ "%validCommands%" goto GetCommand
goto command-%letter%
:command-L Go to line #; continue scrolling
set "currentLine=%command:~0,-1%"
goto ScrollLine
:command-D Delete from line # to current line
set "prevLine=%command:~0,-1%"
if not defined prevLine set "prevLine=%currentLine%"
rem Move lines after last deleted one into deleted lines
set /A currentLine+=1, newCurrent=prevLine-1, lines=currentLine-prevLine
for /L %%j in (%currentLine%,1,%lastLine%) do (
set "line[!prevLine!]=!line[%%j]!"
set /A prevLine+=1
)
set /A currentLine=newCurrent, lastLine=prevLine-1
if %currentLine% equ 0 set "currentLine=1"
echo %lines% line(s) deleted (current=%currentLine%, last=%lastLine%)
goto GetCommand
:command-I Insert lines after current one
echo End insert with *two* empty lines
echo/
rem Read new lines into "ins" array
set "newLine=%currentLine%"
:insertLine
set "line="
set /A newLine+=1
set "num= %newLine%"
set /P "line=+%num:~-3%: "
set "ins[%newLine%]=!line!"
rem The most complex part: end in two empty lines...
if not defined line (
set /A newLine+=1
set "num= !newLine!"
set /P "line=+!num:~-3!: "
if defined line (
set "ins[!newLine!]=!line!"
) else (
set /A newLine-=2
)
)
if defined line goto insertLine
rem Move old lines to new place to make room for new lines
set /A lines=newLine-currentLine, currentLine+=1, newLast=lastLine+lines
for /L %%j in (%lastLine%,-1,%currentLine%) do (
set "line[!newLast!]=!line[%%j]!"
set /A newLast-=1
)
rem Insert new lines in old place
for /L %%j in (%currentLine%,1,%newLine%) do set "line[%%j]=!ins[%%j]!"
set /A lastLine+=lines, currentLine=newLine
echo %lines% line(s) inserted (current=%currentLine%, last=%lastLine%)
goto GetCommand
:command-E End edit, save file
echo Saving file...
move /Y %1 "%~N1.bak"
(for /L %%i in (1,1,%lastLine%) do echo(!line[%%i]!) > %1
:command-Q Quit edit
echo End edit
该程序存在多个问题:不要检查命令中的有效输入,可能会遇到特殊批处理字符的问题,并且如果一行的第一个字符是冒号,则应将其消除。 但是,这是该项目的良好起点!
也许您可能对此类似项目感兴趣。
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