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我想要在场景开始时，把所有和我一个同类组中精灵碰撞的精灵的uid放到数组里面，但是我找不到碰撞找到uid这个动作。请问应该怎么实现？
碰撞会自动选择这些碰撞的实例，使用遍历实例数组.at（loopindex）=实例.UID就可以了具体操作请参考数组