choice (阻止批处理文件和脚本运行)

舞夕之发表于 2020-06-29 14:26

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命令行 MSDOS命令 choice

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choice命令允许用户在进行一系列选择时阻止批处理文件和脚本运行。具有使用choice命令的批处理文件的Microsoft Windows 2000和Windows XP用户应修改该批处理文件以使用MS-DOS set命令。

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1 choice 运行系统环境

2 choice 语法

3 choice 示例

choice 运行系统环境

Windows 95

Windows 98

Windows vista

Windows 7

Windows 8

Windows 10

MS-DOS 6.0及更高版本

choice 语法

Windows Vista和更高版本的语法

CHOICE [/C choices] [/N] [/CS] [/T timeout /D choice] [/M text]


/C choices	指定要创建的选项列表。默认列表为“ YN”。
/N	隐藏提示中的选项列表。显示提示前的消息，并且选项仍处于启用状态。
/CS	允许选择区分大小写的选项。默认情况下，该实用程序不区分大小写。
/T timeout	做出默认选择之前要暂停的秒数。可接受的值是0到9999。如果指定0，则不会暂停，并且选择了默认选项。
/D choice	在nnnn秒后指定默认选项。字符必须在/ C选项指定的选项集中，并且还必须使用/ T指定nnnn。
/M text	指定在提示之前显示的消息。如果未指定，则该实用程序仅显示提示。

注意：

ERRORLEVEL 环境变量设置为从选项集中选择的键的索引。列出的第一个选项返回值1，第二个返回值2，依此类推。如果用户按下不是有效选项的键，该工具会发出警告蜂鸣声。如果工具检测到错误情况，它将返回255的ERRORLEVEL值。如果用户按Ctrl + BREAK或Ctrl + C，则该工具将返回ERRORLEVEL值0。在批处理程序中使用ERRORLEVEL参数时，请以降序列出订购。

例子：

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."

Windows XP和更早的语法

choice [/C[:]choices] [/N] [/S] [/T[:]c,nn] [text]

选项


/C[:]choices	指定允许的密钥。默认为是/否。
/ N	不显示选项和“？” 在提示字符串的末尾。
/S	将选择键区分大小写。
/ T [：] c，nn	nn秒后默认选择为c。
text	显示提示字符串。

Windows Vista and later syntax

CHOICE [/C choices] [/N] [/CS] [/T timeout /D choice] [/M text]

/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 show before the prompt. If not specified, the utility displays only a prompt.

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, etc. 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."

Windows XP and earlier syntax

choice [/C[:]choices] [/N] [/S] [/T[:]c,nn] [text]

Options

/C[:]choices	Specifies allowable keys. Default is Y/N.
/N	Do not display choices and "?" at end of prompt string.
/S	Treat choice keys as case-sensitive.
/T[:]c,nn	Default choice to c after nn seconds.
text	Prompt string to display.

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choice 示例

如何使用选择并在批处理文件中进行设置
如何在批处理文件中使用set
下面是如何使用set命令使批处理文件用户能够按1、2或3并执行所按选项的步骤的方法。

@ECHO off
cls
:start
ECHO.
ECHO 1. Print Hello
ECHO 2. Print Bye
ECHO 3. Print Test
set choice=
set /p choice=Type the number to print text.
if not '%choice%'=='' set choice=%choice:~0,1%
if '%choice%'=='1' goto hello
if '%choice%'=='2' goto bye
if '%choice%'=='3' goto test
ECHO "%choice%" is not valid, try again
ECHO.
goto start
:hello
ECHO HELLO
goto end
:bye
ECHO BYE
goto end
:test
ECHO TEST
goto end
:end
pause

在上面的批处理文件中，当用户输入数据并使用set / p选择行按Enter时，将分配％choice％变量。如果输入1、2或3，则goto转到相应的标签并执行回显，然后转到批处理文件的末尾。

请参阅我们的set命令页面以获取更多信息和选项。

如何在批处理文件中使用选择
以下是如何使用choice命令提供选项1、2或3并执行所按选项的步骤。

@ECHO OFF
:BEGIN
CLS
CHOICE /N /C:123 /M "PICK A NUMBER (1, 2, or 3)"%1
IF ERRORLEVEL ==3 GOTO THREE
IF ERRORLEVEL ==2 GOTO TWO
IF ERRORLEVEL ==1 GOTO ONE
GOTO END
:THREE
ECHO YOU HAVE PRESSED THREE
GOTO END
:TWO
ECHO YOU HAVE PRESSED TWO
GOTO END
:ONE
ECHO YOU HAVE PRESSED ONE
:END
pause

在上面的批处理文件中，choice具有1、2或3选项。如果按下其中任何一个，它将转到带有goto的标签，并回显所按下的数字。

How to use choice and set in a batch file

How to use set in a batch file

Below is how you can use the set command to give batch file users the ability to press 1, 2, or 3 and perform the steps for the option pressed.

@ECHO off
cls
:start
ECHO.
ECHO 1. Print Hello
ECHO 2. Print Bye
ECHO 3. Print Test
set choice=
set /p choice=Type the number to print text.
if not '%choice%'=='' set choice=%choice:~0,1%
if '%choice%'=='1' goto hello
if '%choice%'=='2' goto bye
if '%choice%'=='3' goto test
ECHO "%choice%" is not valid, try again
ECHO.
goto start
:hello
ECHO HELLO
goto end
:bye
ECHO BYE
goto end
:test
ECHO TEST
goto end
:end
pause

In the above batch file, the %choice% variable is assigned when the user enters data and presses enter with the set /p choice line. If 1, 2, or 3 is entered, goto goes to the corresponding label and performs the echo and goes to the end of the batch file.

See our set command page for further information and options.

How to use choice in a batch file

Below is how to use the choice command to give options 1, 2, or 3 and perform the steps for the option pressed.

@ECHO OFF
:BEGIN
CLS
CHOICE /N /C:123 /M "PICK A NUMBER (1, 2, or 3)"%1
IF ERRORLEVEL ==3 GOTO THREE
IF ERRORLEVEL ==2 GOTO TWO
IF ERRORLEVEL ==1 GOTO ONE
GOTO END
:THREE
ECHO YOU HAVE PRESSED THREE
GOTO END
:TWO
ECHO YOU HAVE PRESSED TWO
GOTO END
:ONE
ECHO YOU HAVE PRESSED ONE
:END
pause

In the above batch file, choice has the 1, 2, or 3 option. If any of these are pressed, it goes to the label with goto and echoes the number pressed.

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