[Closed] How to turn on and turn off selected lights?

I see,Thank you J_man

but thing that I want to do is

Select all lights and execute a script, all lights will turn off or turn on.

What shall I do? ?

[left]Turn on[/left]
[left]

[/left]
[left]for l in selection where superclassof l==light do l.on=on[/left]
[left]

[/left]
[left] [/left]
[left]Turn off[/left]
[left][left]

[/left]
[left]for l in selection where superclassof l==light do l.on=off[/left]
[left]

[/left]
[left] [/left]
[left] [/left]
[left]or make all of your lights unique[/left]
[left] [/left]
[left]J.[/left]
[left] [/left]
[/left]

I am really very stupid

Thank you j_man again!!

If you are free I want to invite you to have a drink !!