无论出于何种原因,此命令都有效:
SET QUERY="heat wave"
START /d "C:Program Files (x86)GoogleChromeApplication" chrome.exe https://www.google.com/search?q=%QUERY: =+%
但这不会:
SET SWITCH=1
IF %SWITCH%==1 (
SET QUERY="heat wave"
START /d "C:Program Files (x86)GoogleChromeApplication" chrome.exe https://www.google.com/search?q=%QUERY: =+%
)
这里的关键是enabledelayedexpansion
setlocal enabledelayedexpansion
SET SWITCH=1
IF %SWITCH%==1 (
SET QUERY="heat wave"
START /d "C:Program Files (x86)GoogleChromeApplicationchrome.exe" https://www.google.com/search?q=!QUERY: =+!
)
有关delayedexpansion
的更多信息,请从cmdlineset /?
。
也可以通过加倍最后一个%
并调用 Start 来不delayedexpansion
。
SET SWITCH=1
IF %SWITCH%==1 (
SET QUERY="heat wave"
call START /d "C:Program Files (x86)GoogleChromeApplicationchrome.exe" https://www.google.com/search?q=%%QUERY: =+%%
)