从实际出发，前提是要深入了解实际情况。
So Squire and his colleagues analysed everything they could see in Lucy's room: the bedspread, her outfits, her stuffed toys. Looking for any element which might help.
，这一点在雷电模拟器官方版本下载中也有详细论述
testSort(insertionSort, "Insertion", arr, N);
Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04