本文件提供了四种基于比较实现的排序方法，包括选择排序法、插入排序法、快速排序法和归并排序法-This document provides four comparison-based sorting method implemented, including the selection sort, insertion sort, quick sort and merge sort method

根据用户选择，用冒泡排序法实现数据的升序或降序排列-Based on user choice, with Bubble Sort Method of data in ascending or descending order