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属于C++里继承与派生类的小程序，主要是多层派生里的指针继承问题，仅供参考(Belonging C++ inheritance and derived classes in a small program, mainly derived pointers in multilayer succession for reference purposes only)

用VC编的一个计算器，有界面，适合研究生VC编程初期学习使用(VC series a calculator interface, suitable for graduate student VC program initially learning to use)

长度为N（N很大）的字符串，求最长回文串(Length N (N large) strings, find the longest palindrome string)

source code for a very simple web browser!

VB显示最近打开的文件记录,有需要的就下载吧。(VB show records of recently opened files, there is a need to download it.)

实现高斯滤波等功能，适合VC初学者，可通过代码了解滤波原理。(Gaussian filter functions for VC beginners, filtering through the code to understand the principle.)

计数一个字符串中所有字符出现的频数，并全部输出(Count the number of frequency of all the characters in a string appears, and all output)

分治法思想，求最邻近点对，考虑将所给的n个点的集合S分成2个子集S1和S2，每个子集中约有n/2个点，然后在每个子集中递归地求其最接近的点对(Divide and conquer ideas, find the nearest point to consider given the set S of n points into two subsets S1 and S2, each subset of about n/2 points, and then recursively find its focus in each sub-the closest point)

是一个万年历功能的程序，可以查询某年某天是星期几(A year of day is a calendar function, you can query the day of the week)

谭浩强C程序设计第四版第9章习题答案,自己做出来的( C Programming Fourth Edition Chapter 9 Exercise answers, do it yourself)