DateChang

统计字母出现的频率，统计英文文章相应字母出现概率(Statistics the frequency of occurrence of English letters, the letters corresponding to probability statistics)

万年历（0-9999）（每行打印2个月）。(Calendar (0 to 9999) (2 months each line of print).)

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)

Vc++读写csv文件的类，这个资源是读写CSV文件的非常实用的类。方法写得非常好，代码也写得非常简洁，很合适在实际项目中使用。经本人测试，只要把上面的代码CSVOperator.h、CSVOperator.cpp和StringParser.h拷贝到项目中，就可以直接使用。在CSV_OP.cpp文件中，main方法里面有详细的读取文件的方法。读取的是config.csv这个文件。(Class Vc++ read and write csv file, this resource is to read and write CSV file very useful class. The method is very good, the code is written in a very simple, very suitable for use in the actual project. I tested, above code CSVOperator.h the, CSVOperator.cpp and StringParser.h copy to the project, can be used directly. In the CSV_OP.cpp file, the main method inside the detailed method of reading the file. Read this file config.csv.)

Implement the base class of the control panel

Cool Clock Control,You can enjoy it!

VC环境下创建VPN连接的RASENTRY结构体参数设置(VC environment to create VPN connections RASENTRY structure parameter)

说明：  简单计算器.热爱C++,但还是学生，故来此向大家学习。谢谢。(simple calculator)

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)

说明：  解决约瑟夫环的问题，并输出出圈的顺序。约瑟夫环的大小是任意的。(Joseph Ring solve problems, and the output of the loop sequence. Joseph ring size is arbitrary.)