| index | 从 0 到 pathCount 减 1的路径索引。 |
| points | 所选路径中顶点（点）的有序数组。 |
int
返回放置在 points 数组中的点数。
根据碰撞体的索引获取其路径。
路径 是在定义碰撞体轮廓的各点之间的线段的循环序列。碰撞体可能有孔和不连续部分，因此其形状不一定由单个路径定义。
返回放置在 points 数组中的点数。
另请参阅：GetPathPointCount 和 pathCount。
| index | 从 0 到 pathCount 减 1的路径索引。 |
| points | 所选路径中顶点（点）的有序列表。 |
int
返回放置在 points 列表中的点数。
根据碰撞体的索引获取其路径。
路径 是在定义碰撞体轮廓的各点之间的线段的循环序列。碰撞体可能有孔和不连续部分，因此其形状不一定由单个路径定义。
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：GetPathPointCount 和 pathCount。
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