| results | 用于获取这些结果的 Collider2D 数组。 |
int
返回放置在 results 数组中的 Collider2D 数。
返回附加到该 Rigidbody2D 的所有 Collider2D。
计算附加到该 Rigidbody2D 的所有 Collider2D，并在 results 数组中返回它们。
当获取碰撞体时，应确保提供的数组足够大，能够包含您感兴趣的所有碰撞体。该数组一般会重用，因此其大小应能够返回合理数量的碰撞体。此函数还意味着不发生分配，因此不需要垃圾回收器进行回收。
另请参阅：Rigidbody2D.attachedColliderCount。
| results | 用于接收结果的 Collider2D 列表。 |
int
返回放置在 results 列表中的 Collider2D 数。
返回附加到该 Rigidbody2D 的所有 Collider2D。
计算附加到此 Rigidbody2D 的所有 Collider2D，并在 results 列表中返回它们。
该整数返回值是写入到 results 列表中的结果数。如果结果列表中没有足够的元素来报告所有这些结果，则会调整列表的大小。这可在 results 列表无需调整大小时防止为结果分配内存，可在经常执行查询时提高垃圾收集性能。
另请参阅：Rigidbody2D.attachedColliderCount。
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