pingjiansheji

C++普通计算器的功能，实现整数、小数的加减乘除的算法，有退格、清空的功能。(Common calculator functions)

VB使用SHEmptyRecycleBin方法， 依赖于shell32.dll动态链接库清空回收站，点击窗口中的按钮即可一键清空回收站。本源码主要是熟悉SHEmptyRecycleBin函数的使用，这个函数不只有清空回收站的功能，还可以统计查询回收站中的文件数量，占用字节大小等。 (VB using the SHEmptyRecycleBin method, relies on the dynamic link library shell32.dll empty the recycle bin, click on the window button quick clear recycling station. The main source is the use of familiar with the SHEmptyRecycleBin function, this function is not only the empty recycle bin function, can also query statistics the number of files in the recycle bin, occupy the byte size etc.. )

实现GPS+IMU扩展卡尔曼滤波组合导航，重力场和磁场推算姿态(Achieve the GPS+ IMU extended Kalman filter integrated navigation, gravity field and magnetic field profile projection)

有的科技图书会附有索引，其中列出书中重要术语出现的页码，便于读者查看。试设计一个类似的程序。输入是一个英文文本文件，输出是文件中关键字及其出现的行号的列表并按照关键字有序排列。程序运行方式：>index inputfile keys outputflie (Some books will be accompanied by technology index, which lists important terms appear in the book pages, easy to readers to view. Try to design a similar procedure. English text input is a file, the output is a file that appears in the keywords and their line numbers list and ordered according to keywords. Program run mode:> index inputfile keys outputflie)

4×10的电梯群控系统的仿真平台，可以模拟群控电梯的实时运行情况，并提供了可视化的界面，可以记录乘客的进出时间，总之，在研究电梯群控算法方面，是非常有用的软件。(4 × 10 of the elevator group control system simulation platform that can simulate the elevator group control of real-time operation, and provides a visualization interface, can record the entry and exit of passengers time, short, in the study elevator group control algorithm is very useful software.)

简单易行，很好玩很简单那，我都没费什么功夫(Simple and fun it is very simple)

基于MFC编写的通信录程序，提供登录身份确认，新增、修改、删除信息，基于用户选择隐藏部分信息，尚未实现存储功能，适合学习MFC组件的朋友使用(MFC-based contractor program, provide the login identification, add, modify, delete information based on user choose to hide some information， not yet implemented storage, suitable for learning to use MFC components)

用VB写的Excel录入程序 非常方便 可以方便用户对excel的输入修改 (VB write Excel entry procedures can be very convenient user-friendly input to excel changes)

长整数运算(双向链表),实现长整数无限长加减法的运算(Long integer (two-way linked list), to achieve long-integer addition and subtraction of infinite computing)

sin()函数 给定一个弧度值或者任意数值，可以计算相应的sin值即正弦值(sin () function is given a value, or any value in radians, we can calculate the corresponding value of the sine value sin)