不同的结构，也让麦当劳和肯德基逐步走向了不同的扩张道路。
struct page_info { int classno, count, scavange; };
，更多细节参见旺商聊官方下载
再写代码：从插入/冒泡开始，逐步挑战快排/归并
"Once the island is fully established with gravel on top, it will sit safely above the highest tides to offer a safe refuge for some of our bird species which are in decline," Gilchrist said.