数据结构排序算法的比较，起泡排序、直接插入排序、简单选择排序、快速排序、希尔排序、堆排序-Comparison of data structures sorting algorithm, bubble sort, direct insertion sort, simple selection sort, quick sort, Shell sort, Heap sort

常用的算法经典代码，包括快速排序，冒泡排序等各种排序方法，还有二叉树的前序、中序和后序遍历等-The classic algorithm code, including quick sort and bubble sort sorting methods, as well as the preamble of the binary tree, inorder and postorder traversal, etc.