个人第二次作业：熟悉使用工具

Git地址	地址
Git用户名	Turkey-sandwich
学号后五位	61124
博客地址	博客地址
作业链接	作业链接

搭建环境

环境搭建过程中没有出现什么问题，唯一一点就是git下载的太慢了，一般只有10多kb\s，我只能去图书馆下载了git。

测试过程

我发现vs2017中的 测试过程中出现了问题，当我按下引用选项时，系统提示缺少COM组件，通过百度，解决了这个问题。  接着，我对代码进行了测试发现在新版VS2017中，预编译头文件`stdafx.h`被替换成了`pch.h`。通过改进，代码正常运行。 以下是测试截图： 

代码上传到GitHub


部分代码以及心得体会

本次作业对我来说有一些困难，头都做大了，虽说过程走了一些弯路（主要是我这个铁憨憨最开始没有搞懂这次作业的具体内容），但也是按流程完成了作业，知道了如何将自己的代码提交到GitHub上等等。cpp的使用不够熟练，所以我通过了大量的枚举实现了随机四则运算的过程，因为全部的枚举过于庞大，所以在此贴一部分代码参考。

部分代码

else if (shuzi == 0)//三个运算数 { switch (c1)//第一个运算符 { case 1: switch (c2)//第二个运算符 { case 1: question << a << '+' << b << '+' << c << '=' << endl; answer << a + b + c << endl; break; case 2: while (b - c < 0) { b = rand() % 100; c = rand() % 100; } question << a << '+' << b << '-' << c << '=' << endl; answer << a + b - c << endl; break; case 3: question << a << '+' << b << '*' << c << '=' << endl; answer << a + b * c << endl; break; case 4: while (c == 0 || b != c * (b / c))//控制结果不出现小数且除数不为0 { b = rand() % 100; c = rand() % 100; } question << a << '+' << b << '/' << c << '=' << endl; answer << a + b / c << endl; break; default: break; } break; case 2: switch (c2)//第二个运算符 { case 1: question << a << '-' << b << '+' << c << '=' << endl; answer << a - b + c << endl; break; case 2: while (a - b - c < 0) { b = rand() % 100; c = rand() % 100; } question << a << '-' << b << '-' << c << '=' << endl; answer << a - b - c << endl; break; case 3: while (a - b * c < 0) { a = rand() % 100; b = rand() % 100; c = rand() % 100; } question << a << '-' << b << '*' << c << '=' << endl; answer << a - b * c << endl; break; case 4: while (c == 0 || b != c * (b / c))//控制结果不出现小数且除数不为0 { b = rand() % 100; c = rand() % 100; } question << a << '-' << b << '/' << c << '=' << endl; answer << a - b / c << endl; break; default: break; } break; case 3: switch (c2)//第二个运算符 { case 1: question << a << '*' << b << '+' << c << '=' << endl; answer << a * b + c << endl; break; case 2: while (b - c < 0) { b = rand() % 100; c = rand() % 100; } question << a << '*' << b << '-' << c << '=' << endl; answer << a * b - c << endl; break; case 3: question << a << '*' << b << '*' << c << '=' << endl; answer << a * b * c << endl; break; case 4: while (c == 0 || b != c * (b / c))//控制结果不出现小数且除数不为0 { b = rand() % 100; c = rand() % 100; } question << a << '*' << b << '/' << c << '=' << endl; answer << a * b / c << endl; break; default: break; } break; case 4: switch (c2)//第二个运算符 { case 1: while (b == 0 || a != b * (a / b)) { a = rand() % 100; b = rand() % 100; } question << a << '/' << b << '+' << c << '=' << endl; answer << a / b + c << endl; break; case 2: while (b == 0 || a != b * (a / b) || a / b - c < 0) { a = rand() % 100; b = rand() % 100; c = rand() % 100; } question << a << '/' << b << '-' << c << '=' << endl; answer << a / b - c << endl; break; case 3: while (b == 0 || a != b * (a / b)) { a = rand() % 100; b = rand() % 100; } question << a << '/' << b << '*' << c << '=' << endl; answer << a / b * c << endl; break; case 4: while (b == 0 || a != b * (a / b) || c == 0 || (a / b) != c * ((a / b) / c))//控制结果不出现小数且除数不为0 { a = rand() % 100; b = rand() % 100; c = rand() % 100; } question << a << '/' << b << '/' << c << '=' << endl; answer << a / b / c << endl; break; default: break; } break; default: break; } } } question.close(); answer.close(); }

运行截图