无法在 DOS 中输入变量

Question

我正试图在vDOS(DOS模拟器(中运行一个批处理文件，我希望用户在其中输入两个变量。每次运行该文件时，它都不允许我输入变量。

SET /P in=Input:
SET /P out=Output:

我所期望的是，它会让我输入变量的输入。相反，它按原样执行这两个命令(不让我输入输入(。

Answer 1

Windows cmd和MS-DOS是非常不同的东西，其中一个区别是set命令。在MS-DOS中，集合的唯一形式是set variable=value。既没有set /A、set "variable=value"也没有set /P。

set /P是Windows NT的cmd.exe的一个功能。在DOS中，您必须使用3^rd方软件来获取用户输入并存储在变量中。以下是的一些解决方案

• SENVAR.COM

  SENVAR INPUT Input string:
  

• CCD_ 8和CCD_ 9

  editvar -p "Input string: " INPUT
  

• FC.COM

  @echo off
  :: based on batch from PC Magazine June 27, 1995 page 248
  :: this version puts temps in C:DOS dir and shortens var names
  :: User input is returned in variable STR
  :input
  > C:DOSen#er.bat fc con nul /lb1 /n|date|find "    1:  "
  > C:DOSenter.bat echo set str=
  >>C:DOSenter.bat echo :loop
  >>C:DOSenter.bat echo if not '%%str%%==' set str=%%str%% %%5
  >>C:DOSenter.bat echo if '%%str%%==' set str=%%5
  >>C:DOSenter.bat echo shift
  >>C:DOSenter.bat echo if not '%%5==' goto loop
  call en#er.bat
  del C:DOSenter.bat
  del C:DOSen#er.bat
  

• ANSI.SYS

  @ECHO OFF
  REM * Ask for USeR INPUT and store it in variable USRINPUT
  REM * Assumes ANSI.SYS is loaded
  REM * Written by Rob van der Woude
  SET USRINPUT=
  REM * Turn on ANSI key translation (translate Enter
  REM * key to F6+Enter sequence) and ask for input:
  ECHO ←[13;0;64;13pEnter one word only . . .
  REM * Copy entered text to temporary file:
  COPY CON %TEMP%.~USRINP.TMP
  REM * Turn off ANSI key translation and clear irrelevant screen output:
  ECHO ←[13;13p←[3A←[K←[1B←[K←[1B←[K←[2A
  REM * Add empty line to temporary file. The empty line
  REM * will be used to stop DATE asking for new date.
  ECHO.>> %TEMP%.~USRINP.TMP
  ECHO.>> %TEMP%.~USRINP.TMP
  
  REM * Create a temporary batch file that will store the
  REM * entered text into the environment variable USRINPUT:
  TYPE %TEMP%.~USRINP.TMP | DATE | FIND "):" > %TEMP%.~USRINP.BAT
  REM * Create more temporary batch files. Add
  REM * more command line parameters if necessary,
  REM * as in: ECHO SET USRINPUT=%%3 %%4 %%5 %%6 %%7 %%8 %%9>CURRENT.BAT
  ECHO SET USRINPUT=%%3>CURRENT.BAT
  REM * VOER.BAT and TYP.BAT are replacements for CURRENT.BAT for Dutch
  REM * DOS versions; add your own language versions if necessary:
  ECHO SET USRINPUT=%%6>VOER.BAT
  ECHO SET USRINPUT=%%4>TYP.BAT
  REM * This temporary batch file now sets the variable USRINPUT:
  CALL %TEMP%.~USRINP.BAT
  REM * Display the result:
  ECHO You typed: ←[1m%USRINPUT%←[0m
  ECHO.
  PAUSE
  REM * Finally, clean up the mess of temporary files:
  FOR %%A IN (%TEMP%.~USRINP.BAT %TEMP%.~USRINP.TMP VOER.BAT TYP.BAT CURRENT.BAT) DO DEL %%A
  

←是转义符(27h(

如果你只想得到简单的答案，比如Y/N，那么CHOICE.COM就是为这个目的而设计的

另请参见

• MS-DOS 6.22批处理文件到环境变量的用户输入
• DOS 7.1中的变量提示

Answer 2

/P直到Windows 2000或NT才被引入。传统的MS-DOS或等效系统不会有它。https://www.computerhope.com/sethlp.htm