如何向gameScene中添加滚动视图。斯威夫特，那将会通过一系列的精灵?

So I've created a 3x10 grid of sprites, that go off the bottom edge of the screen. I've added a UIScrollView, and the scroll indicators appear, but no movement actually occurs. Here's the code:So I've created a 3x10 grid of sprites, that go