冒泡排序的算法分析与改进 交换排序的基本思想是：两两比较待排序记录的关键字，发现两个记录的次序相反时即进行交换，直到没有反序的记录为止。-Bubble sort algorithm analysis and the basic idea is to improve the exchange of sort: pairwise comparison of key records to be sorted, found the opposite order of the two records