二叉树的基本操作

该程序实现了用文件记录变长字节流，可用以存储各种类型的文件，如多媒体数据，声音、图形、图像等。每项记录由记录号和标志符标记。记录的记录号和标识均可用作对记录的定位和引用，记录号可以由操作者输入，也可以自动生成，标志符一定要由操作者输入。

VC++ ACCESS简单的数据库系统 ODBC-VC++ ACCESS simple ODBC database system

利用Access数据库制作的学生管理系统，可以方便的进行查询和其他管理。-use Access database produced by the student management system, to facilitate the conduct of inquiries and other management.

这是一个连接数据库的类，非常有用，感谢指教-This is a type of database connections, very useful

一个简单的网络爬虫，使用SQL sever数据库 给初学者参考-err

用C#编程连接到一个Access数据库，打开其中的一张表，在DataGridView控件中显示数据表的详细内容。

表达式求值：支持浮点运算，以及一些纠错功能-expression evaluates : support floating-point operations, and some correction function

此程序为求两个数的约数,将他们输出,将这两个数的最大公约数输出 -procedure for the sake of a few two about a few of their exports, the number of these two majors output

这个程序是按照离散数学教材上给出的算法写的，是字典序的全排列算法。空间复杂度是O(n)，时间复杂度基本上是O(n^2)。缺点是只用于打印并没有储存所有的结果。-the procedure is in accordance with the materials on discrete mathematics algorithm is written, is a wholly-lexicographic order algorithm. Space complexity is O (n), is basically time complexity is O (n ^ 2). Only drawback is not for print, and store all the results.

一辆汽车加满油后可行驶n公里。旅途中有若干个加油站。设计一个有效算法，指出应在哪些加油站停靠加油，使沿途加油次数最少。对于给定的n和k个加油站位置，编程计算最少加油次数。并证明算法能产生一个最优解-Fill up the car after driving an n km. There are a number of gas stations journey. Design an efficient algorithm that at which stations should stop to refuel along the way so that the least number of refueling. For a given n and k-station location, the calculation program for at least the number of refueling. And to prove that the algorithm can produce an optimal solution