该timeout命令，可以从Windows Vista和以后应在命令中使用，如在另一所描述的回答了这个问题。接下来是一个_古老的_ 答案。
timeout从Windows Vista以后的版本中可以使用该命令：
c:\> timeout /?
TIMEOUT [/T] timeout [/NOBREAK]
Description:
This utility accepts a timeout parameter to wait for the specified
time period (in seconds) or until any key is pressed. It also
accepts a parameter to ignore the key press.
Parameter List:
/T timeout Specifies the number of seconds to wait.
Valid range is -1 to 99999 seconds.
/NOBREAK Ignore key presses and wait specified time.
/? Displays this help message.
NOTE: A timeout value of -1 means to wait indefinitely for a key press.
Examples:
TIMEOUT /?
TIMEOUT /T 10
TIMEOUT /T 300 /NOBREAK
TIMEOUT /T -1
注意：它不适用于输入重定向-简单示例：
C:\>echo 1 | timeout /t 1 /nobreak
ERROR: Input redirection is not supported, exiting the process immediately.
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