在从堆中分配内存时，不管上次使用内存之后留下了什么内容，内存中的内容都被当作垃圾。

When allocating memory from the heap, the contents of that memory are garbage — whatever bits happen to be left over from the last time that memory was used.

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故世的老人没有留下遗嘱，他的财产分配是一个大难题。

The deceased old man did not leave a will and the distribution of his property was a Gordian knot.

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例如，dll会装载在各自的地址空间，因此dll间会留下内存空隙。另外，重新分配的虚拟内存间也会留下空隙。

For example, DLL's have preferred loading addresses so gaps are left between them, and virtual allocations that have been de-allocated will also leave gaps.

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