在 1.0.0-pre.65 如何打开碰撞体的碰撞检测中，我在面板中找不到打开按钮，也无法像 1.0.0-pre.44 那样打开碰撞检测
I suppose you expect this box to fall, but it needs a Rigidbody component for it to become dynamic and be subject to gravity.
Have a look at the standard, built-in physics documentation for Unity for how to author physics and then do the authoring in a subscene and this should work fine.
Hope this helps.