PTRZEPP

本源代码是通过堆栈的结构，可以实现表达式求值。可以实现如下功能：1.区分括号2.判断表达式的形式是否有错3.判断小数和整数4.根据符号的优先级能够自动给出计算顺序。5.包中含有表达式求值的详细思路PPT。

数据结构栈队列-车场管理-queue data structure stack-Yard Management

oracle非常通用DBA维护脚本，为DBA工程师提供日常脚本，省去翻资料查找了。很实用的！

考勤系统.运行本系统时，登录界面要求输入系统的用户名和密码，此系统提供了两种类型的用户，一种是超级用户，具有执行所有功能的权限，另一种是签到用户，只具有签到功能，因此，这里提供了两个默认的用户名和密码，一个是超级用户，用户名为000，密码为000，另外一个是签到用户，用户名为111，密码为111。-Time and Attendance system. Operation of the system, the login screen for the importation of the system user name and password, the system provides two types of users, one is the super-user, with the implementation of all functions of the authority, another is a sign-user, only sign function, so, here are two default user name and password, a super-user, the user name 000, password 000, the other one is the sign user, the user name 111, password is 111.

二叉树应用-线索化二叉树遍历的源码以及实验报告！-Binary Tree Application- threaded binary tree traversal of the source and the experimental report!

最短路径查询,用的是ESRI公司arcobject组件开发的,已经作成dll,用起来非常的方便-Shortest Path inquiries, the company is ESRI arcobject development of the components, make dll with it is very convenient

常用的hash算法APHash，该hash算法可以实现均衡分布，让数据均匀的分布在hash列表中-Commonly used hash algorithms APHash, the hash algorithm can achieve a balanced distribution, so that uniform distribution of data in the hash list

数据结构常用算法设计 用C++实现二叉排序树与平衡二叉树-algorithm commonly used data structures designed to achieve two C-tree fork and balanced binary tree

利用分治的思想，并使用C语言，解决树上路径问题，求权值最小的边(Use the idea of ​ ​ partition, and use the C language, problem solving tree path, find the smallest edge weights)

程序分析，主要功能有，但界面还没加上，基本实现了功能要求。-program analysis, the main function, but with no interface and the basic realization of the functional requirements.