2023.4.26

#include <iostream>
using namespace std;
//设计一款电子钟类，用于显示时、分、秒
//1.含有形参有默认值的默认构造函数；
//2.重载 前缀++ 和 后缀—用于调整时间，每次调整均对秒进行调整，若秒满60，则分加1，若分满60则时加1，时满24，则清零重新开始；
//3.重载插入运算符 >> 用于输入（设定）时间；
//4.重载插入运算符 << 用于输出时间。
class Clock
{
public:
    Clock(int hour ,int minute ,int second );
    Clock& operator++();
    Clock& operator_();
    friend istream& operator>>(istream& cin,Clock &c);
    friend ostream& operator<<(ostream& cout,Clock &c);
private:
    int hour;
    int minute;
    int second;
};
Clock::Clock(int hour = 0,int minute = 0,int second = 0)
{
    this->hour = hour;
    this->minute = minute;
    this->second = second;
}
Clock&Clock::operator++()
{
    second++;
    if(second>=60)
    {
        second-=60;
        minute++;
        if(minute>=60)
        {
            minute-=60;
            hour = (hour+1)%24;
        }
    }
    return *this;
}

istream& operator>>(istream& cin,Clock &c)
{
    cin>>c.hour;
    cin>>c.minute;
    cin>>c.second;
    return cin;
}
ostream& operator<<(ostream& cout,Clock &c)
{
    cout<<c.hour<<":"<<c.minute<<":"<<c.second<<endl;
    return cout;
}
void test()
{
    Clock c;
    cin>>c;
    ++c;
    cout<<c<<endl;
}
int main()
{
    test();
    return 0;
}

//实验五任务五
#include <iostream>
using namespace std;
//定义一个分数类，包含分子、分母
//实验要求：
//1.含有无参的默认构造函数，并进行构造函数的重载；
//2.重载分数的加法+、减法-、数乘*这三运算符；
//3.重载分数的输入和输出运算符；
//4.重载分数的关系运算符==，!=，>=，<=；
//5.定义约简函数，使分子分母没有公因子。
//fraction分数，numerator分子，denominator分母
class Fraction
{
public:
    Fraction(int num = 0,int den = 0);
    friend Fraction& operator+(Fraction &f1,Fraction &f2);
    friend Fraction& operator-(Fraction &f1,Fraction &f2);
    friend Fraction& operator*(Fraction &f1,Fraction &f2);
    friend bool operator==(Fraction &f1,Fraction &f2);
    friend bool operator!=(Fraction &f1,Fraction &f2);
    friend bool operator>=(Fraction &f1,Fraction &f2);
    friend bool operator<=(Fraction &f1,Fraction &f2);
    friend istream & operator>>(istream &cin,Fraction &f);
    friend ostream & operator<<(ostream &cout,Fraction &f);
    friend Fraction& sim(Fraction &f);
private:
    int num;
    int den;
};
Fraction::Fraction(int num,int den)
{
        this->num = num;
        this->den = den;
}
Fraction& operator+(Fraction &f1,Fraction &f2)
{
    Fraction temp;
    temp.num = f1.num + f2.num;
    temp.den = f1.den + f2.den;
    return temp;
}
Fraction& operator-(Fraction &f1,Fraction &f2)
{
    Fraction temp;
    temp.num = f1.num - f2.num;
    temp.den = f1.den - f2.den;
    return temp;
}
Fraction& operator*(Fraction &f1,Fraction &f2)
{
    Fraction temp;
    temp.num = f1.num * f2.num;
    temp.den = f1.den * f2.den;
    return temp;
}
bool operator==(Fraction &f1,Fraction &f2)
{
    if(f1.num == f2.num && f1.den == f2.den)
    {
        return true;
    }
    else
    {
        return false;
    }
}
bool operator!=(Fraction &f1,Fraction &f2)
{
    if(f1.num == f2.num && f1.den == f2.den)
    {
        return false;
    }
    else
    {
        return true;
    }
}
bool operator>=(Fraction &f1,Fraction &f2)
{
    double x = f1.num/f1.den;
    double y = f2.num/f2.den;
    if(x>=y)
    {
        return true;
    }
    else
    {
        return false;
    }
}
bool operator<=(Fraction &f1,Fraction &f2)
{
    double x = f1.num/f1.den;
    double y = f2.num/f2.den;
    if(x<=y)
    {
        return true;
    }
    else
    {
        return false;
    }
}
istream & operator>>(istream &cin,Fraction &f)
{
    cin>>f.num;
    cin>>f.den;
    return cin;
}
ostream & operator<<(ostream &cout,Fraction &f)
{
    cout<<f.num<<endl;
    cout<<"-"<<endl;
    cout<<f.den<<endl;
    return cout;
}
Fraction& sim(Fraction &f)
{
    int max,min;
    if(f.num>f.den)
    {
        max = f.num;
        min = f.den;
    }
    else
    {
        max = f.den;
        min = f.num;
    }
    int a,b;
    while(1)
    {
        int a = max%min;
        if(a == 0)
            break;
        max = min;
        min = a;
    }
    f.num  = f.num/min;
    f.den  = f.den/min;
    return f;
}
void test()
{
    Fraction f1,f2;
    cin>>f1;
    cin>>f2;
    if(sim(f1) == sim(f2))
    {
        cout<<"f1和f2相等"<<endl;
    }
    cout<<f1<<endl;
    cout<<f2<<endl;
}
int main()
{
    test();
    return 0;
}