批处理文件怎么做计算机睡眠的dos命令，如何在批处理⽂件cmd中睡眠5秒
试试看选择命令。从MSDOS 6.0开始，它就已经出现了，应该可以做到这⼀点。
使⽤/T参数以秒为单位指定超时，使⽤/D参数指定默认的选择，然后忽略选定的选择。
⼀个可能是问题的问题是，如果⽤户在超时期间之前键⼊⼀个选择字符。部分解决⽅法是混淆情况-使⽤/N参数隐藏有效选项的列表，并且在⼀组选择中只有⼀个字符，这样⽤户在超时之前输⼊有效选项的可能性就更⼩了。
下⾯是WindowsVista上的帮助⽂本。我认为XP上的情况是⼀样的，但是请查看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."

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