ASimpleCalculator

从键盘接收字符串，并统计其中各种字符出现频率！(calculate the frequency of every sinal get from the keyboard!)

A simple vector operation class and header

模拟电话本，本程序是初学C++时候写得，作为初学者的参考(The analog phone book, this program is the beginner C++ when written, as a reference for beginners)

这是C++Primer的书籍的源代码，包括课后习题的答案，是份很不错的代码，尤其针对初学者(This is the source code of C++Primer books, including after-school exercises, answers, were very good code, especially for beginners)

USACO第10题，Marry乳业从一些奶农手中采购牛奶，并且每一位奶农为乳制品加工企业提供的价格是不同的。此外，就像每头奶牛每天只能挤出固定数量的奶，每位奶农每天能提供的牛奶数量是一定的。每天Marry乳业可以从奶农手中采购到小于或者等于奶农最大产量的整数数量的牛奶。 给出Marry乳业每天对牛奶的需求量，还有每位奶农提供的牛奶单价和产量。计算采购足够数量的牛奶所需的最小花费。 (Give the requirement of milk and the amount that they offer.)

复数类的运用输入、输出、加、减、乘、除、模长、幅角、共轭、关系(The use of complex type input, output, add, subtract, multiply, divide, die a long, pieces of angle, conjugate, relationship)

程序中输出日志保存下来的好东西，只要调用里面的一个方法就可以将日志保存到硬盘上了(Preserved in the output log program a good thing, as long as there' s a method call can be saved to the hard drive on the log)

按下 Mouse 的右键，选择『编码』里的『GB2312』查看输出结果。">

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.)

说明：  能够自动生成准考证或员工证，并且能够自动添加照片的VBA程序，很实用(Admission ticket can be automatically generated or staff card, and can automatically add photos of VBA procedures, it is practical)