第九周实验报告(3)
2012-04-16 18:59
316 查看
/* 程序头部注释开始
* 程序的版权和版本声明部分
* Copyright (c) 2012, 烟台大学计算机学院学生
* Copyright (c) 2012, 烟台大学计算机学院学生
* All rights reserved.
* 文件名称:
* 作 者: 李瑞
* 完成日期: 2012 年4 月15 日
* 版 本 号: v1.0
* 对任务及求解方法的描述部分
* 输入描述:……
* 问题描述:……
* 程序输出:……
* 程序头部的注释结束*/
结果:
* 程序的版权和版本声明部分
* Copyright (c) 2012, 烟台大学计算机学院学生
* Copyright (c) 2012, 烟台大学计算机学院学生
* All rights reserved.
* 文件名称:
* 作 者: 李瑞
* 完成日期: 2012 年4 月15 日
* 版 本 号: v1.0
* 对任务及求解方法的描述部分
* 输入描述:……
* 问题描述:……
* 程序输出:……
* 程序头部的注释结束*/
#include<iostream> using namespace std; class CFraction { private: int nume; // 分子 int deno; // 分母 int gcd(int nu, int de); public: //重载流运算符 friend istream & operator >> (istream &, CFraction &); friend ostream & operator << (ostream &, CFraction &); //构造函数及运算符重载的函数声明 CFraction(int nu = 0, int de = 1):nume(nu), deno(de){}; //构造函数,初始化用 friend CFraction operator + (CFraction c1,CFraction c2); friend CFraction operator - (CFraction c1,CFraction c2); friend CFraction operator * (CFraction c1,CFraction c2); friend CFraction operator / (CFraction c1,CFraction c2); friend CFraction operator - (CFraction c); friend CFraction operator + (CFraction c, int s); friend CFraction operator - (CFraction c, int s); friend CFraction operator * (CFraction c, int s); friend CFraction operator / (CFraction c, int s); friend CFraction operator + (int s, CFraction c); friend CFraction operator - (int s, CFraction c); friend CFraction operator * (int s, CFraction c); friend CFraction operator / (int s, CFraction c); bool operator > (CFraction &t); bool operator < (CFraction &t); bool operator >= (CFraction &t); bool operator <= (CFraction &t); bool operator == (CFraction &t); bool operator != (CFraction &t); void Simplify(); //化简(使分子分母没有公因子) void display(); }; //重载流插入运算符 istream & operator >> (istream & in, CFraction & c) { char c1; cout << "请输入分数值:(形式:2/5)" << endl; while(1) { in >> c.nume >> c1 >> c.deno; if(c.deno == 0) { cout << "分母不能为0!重新输入:" << endl; } else if(c1 != '/') { cout << "格式不正确!请重新输入:" << endl; } else { break; } } return in; } //重载流提取运算符 ostream & operator << (ostream & out, CFraction & c) { out << c.nume << "/" << c.deno << endl; return out; } //重载函数的实现及用于测试的main()函数 void CFraction::Simplify() { int n ; if(nume < 0) { n = gcd(-nume, deno); } else { n = gcd(nume, deno); } nume = nume / n; deno = deno / n; } int CFraction::gcd(int nu, int de) { int t, r, a, b; a = nu; b = de; if (a < b) { t = a; a = b; b = t; } while (b != 0) { r = a % b; a = b; b = r; } return a; } void CFraction::display() { cout << nume << "/" << deno << endl; } CFraction operator + (CFraction c1,CFraction c2) { CFraction c; c.nume = c1.nume * c2.deno + c2.nume * c1.deno; c.deno = c1.deno * c2.deno; return c; } CFraction operator - (CFraction c1,CFraction c2) { CFraction c; c.nume = c1.nume * c2.deno - c2.nume * c1.deno; c.deno = c1.deno * c2.deno; return c; } CFraction operator * (CFraction c1,CFraction c2) { CFraction c; c.nume = c1.nume * c2.nume; c.deno = c1.deno * c2.deno; return c; } CFraction operator / (CFraction c1,CFraction c2) { CFraction c; c.nume = c1.nume * c2.deno; c.deno = c1.deno * c2.nume; return c; } CFraction operator - (CFraction c) { c.nume = 0 - c.nume; return c; } bool CFraction::operator > (CFraction &t) { if(nume * t.deno > t.nume * deno) { return true; } else { return false; } } bool CFraction::operator < (CFraction &t) { if(nume * t.deno < t.nume * deno) { return true; } else { return false; } } bool CFraction::operator >= (CFraction &t) { if(nume * t.deno >= t.nume * deno) { return true; } else { return false; } } bool CFraction::operator <= (CFraction &t) { if(nume * t.deno <= t.nume * deno) { return true; } else { return false; } } bool CFraction::operator == (CFraction &t) { if(nume * t.deno == t.nume * deno) { return true; } else { return false; } } bool CFraction::operator != (CFraction &t) { if(nume * t.deno != t.nume * deno) { return true; } else { return false; } } CFraction operator + (CFraction c, int s) { CFraction c2 = c; c2.nume = c.nume + s * c.deno; return c2; } CFraction operator - (CFraction c, int s) { CFraction c2 = c; c2.nume = c.nume - s * c.deno; return c2; } CFraction operator * (CFraction c, int s) { CFraction c2 = c; c2.nume = c.nume * s; return c2; } CFraction operator / (CFraction c, int s) { CFraction c2 = c; c2.deno = c.deno * s; return c2; } CFraction operator + (int s, CFraction c) { CFraction c2 = c; c2.nume = c.nume + s * c.deno; return c2; } CFraction operator - (int s, CFraction c) { CFraction c2 = c; c2.nume = s * c.deno - c.nume; return c2; } CFraction operator * (int s, CFraction c) { CFraction c2 = c; c2.nume = s * c.nume; return c2; } CFraction operator / (int s, CFraction c) { CFraction c2 = c; c2.nume = s * c.deno; c2.deno = c.nume; return c2; } void main() { CFraction c1, c2, c; cin >> c1 >> c2; c1.Simplify(); c2.Simplify(); cout << "c1 =" << c1; cout << "c2 =" << c2; c = c1 + c2; c.Simplify(); cout << "c1 + c2 =" << c; c = c1 - c2; c.Simplify(); cout << "c1 - c2 =" << c; c = c1 * c2; c.Simplify(); cout << "c1 * c2 =" << c; c = c1 / c2; c.Simplify(); cout << "c1 / c2 =" << c; c = c1 + 2; c.Simplify(); cout << "c1 + 2 =" << c; c = 2 - c2; c.Simplify(); cout << "2 - c2 =" << c; c = c1 * 2; c.Simplify(); cout << "c1 * 2 =" << c; c = 2 / c2; c.Simplify(); cout << "2 / c2 =" << c; c = - c1; cout << "-c1 =" << c; if(c1 > c2) { cout << "c1 > c2" << endl; } if(c1 < c2) { cout << "c1 < c2" << endl; } if(c1 >= c2) { cout << "c1 ≥ c2" << endl; } if(c1 <= c2) { cout << "c1 ≤ c2" << endl; } if(c1 == c2) { cout << "c1 = c2" << endl; } if(c1 != c2) { cout << "c1 ≠ c2" << endl; } system("pause"); }
结果:
相关文章推荐
- 第九周实验报告2
- 第九周实验报告(1)
- C++程序设计实验报告(六十一)---第九周任务5
- 第九周实验报告(任务三)【分数类中《和》运算符重载】
- 第九周实验报告(1)
- 第九周实验报告(3)
- 第九周实验报告任务4 建立一个二维数组类Douary,使该类中有以下数据成员、成员函数及友员函数,完成矩阵的输入、输出、加、减、相等判断等操作。
- 第九周实验报告5
- 第九周实验报告1
- C++第九周实验报告
- 第九周实验报告一
- 第九周实验报告二
- C++程序设计实验报告(六十)---第九周任务4
- 第九周实验报告(2)
- 第九周实验报告(4)
- 第九周实验报告2
- 第九周实验报告(一)
- 第九周实验报告三
- 第九周实验报告2
- 第九周实验报告1