calculation

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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.)

用于求三组数，每组数的各个位都不相同。第二组数为第一组的2倍，第3组数为第一组的3倍(Is used to find the number of three, the number of the bits in each group are different. The second number of groups for the first group of two times the number of the third group of three times the first group)

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)

一个简单的计算器程序，实现了加、减、乘、除计算(A simple calculator program to achieve the add, subtract, multiply, divide computing)

读取文件。给出一个txt文件（水准数据）利用openfile 语句读取每一行的文件，再读入数据库。(Read the file. Gives a txt file (level data) to utilize openfile statement reads each line of the file, and read it into the database.)

Calculator using switch

适合大家一起入门 大家一起学习吧 是个bem程序(Getting Started with everyone for everyone to learn it is a bem program)

说明：  vc++扩展编程实例\B5的源代码及可执行文件(VC++ MFC Extensions by Example)

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)