关于newRolloutFloater里面的子rollout的折叠

rollout testRollout1 "testRollout"
(
slider dddd "dddd"
)

rollout testRollout2 "testRollout"
(
slider dddd "dddd"
)

rollout testRollout "testRollout"
(
button btn "O_o"
on btn pressed do
(
testRollout1.open = not testRollout1.open
testRollout2.open = not testRollout2.open
)
)

tempFloater = newRolloutFloater "tempFloater" 300 300
addRollout testRollout1 tempFloater
addRollout testRollout2 tempFloater
addRollout testRollout tempFloater