A good place to use a Pool is in situations where many (noncontiguous) small objects may be allocated on the heap, or if allocation and deallocation of the same-sized objects happens repeatedly.

• 使用内存池的一个好地方是，要在堆上分配多个(非连续的)小型对象的情形，或者是对相同大小的对象的分配和释放反复发生的情形。