代码如下：

tell application "System Events"
	set listOfProcesses to (name of every process where background only is false)
	tell me to set selectedProcesses to choose from list listOfProcesses with multiple selections allowed
end tell
--The variable `selectedProcesses` will contain the list of selected items.
repeat with processName in selectedProcesses
	do shell script "Killall " & quoted form of processName
end repeat

和系统的活动监视器相比，好处在于只有前台进程。