$task = tasklist /nh /fo csv$total = 0for($i=0; $i -lt $task.count; $i++){    $one = $task[ $i ].Split('"').replace(",","")[9].replace(" K","")    $total = $total + ([int] $one)}echo ("Total mem usage:{0}MB" -f ($total / 1024))

：没有sed 和awk 就是麻烦。