第九周实验报告1
2012-04-17 23:22
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* 程序的版权和版本声明部分
* Copyright (c) 2011, 烟台大学计算机学院学生
* All rights reserved.
* 文件名称: class time
* 作 者: 于昊
* 完成日期: 2012 年 04月 16 日
* 版 本 号: 1.0
* 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:
* 问题分析:
* 算法设计:…
#include <iostream>
using namespace std;
class CTime
{
private:
unsigned short int hour; // 时
unsigned short int minute; // 分
unsigned short int second; // 秒
public:
CTime(int h = 0, int m = 0, int s = 0):hour(h), minute(m), second(s){ }
void setTime(int h, int m, int s);
void display();
//比较运算符(二目)的重载
bool operator > (CTime &t);
bool operator < (CTime &t);
bool operator >= (CTime &t);
bool operator <= (CTime &t);
bool operator == (CTime &t);
bool operator != (CTime &t);
//二目运算符的重载
CTime operator + (CTime &c);//返回c所规定的时、分、秒后的时间,例t1(8,20,25),t2(11,20,50),t1+t2为:41:15
CTime operator - (CTime &c);//对照+理解
CTime operator + (int s);//返回s秒后的时间
CTime operator - (int s);//返回s秒前的时间
//一目运算符的重载
CTime operator ++ (int);//后置++,下一秒
CTime operator ++ ();//前置++,下一秒
CTime operator -- (int);//后置--,前一秒
CTime operator -- ();//前置--,前一秒
//赋值运算符的重载
CTime operator += (CTime &c);
CTime operator -= (CTime &c);
CTime operator += (int s);//返回s秒后的时间
CTime operator -= (int s);//返回s秒前的时间
//重载流插入运算符“>>”
friend istream& operator >> ( istream& , CTime&);
//重载流输出运算符"<<"
friend ostream& operator << ( ostream& , CTime&);
};
//下面实现所有的运算符重载代码。
//为简化编程,请注意通过调用已有函数,利用好各函数之间的关系
istream& operator >> ( istream& input,CTime &c )
{
input>>c.hour >>c.minute >>c.second ;
return input;
}
ostream& operator << ( ostream& output,CTime &c )
{
output<<c.hour <<c.minute <<c.second ;
return output;
}
void CTime::setTime(int h, int m, int s)
{
hour = h;
minute = m;
second = s;
}
void CTime::display()
{
cout << hour << ":" << minute << ":" << second << endl;
}
bool CTime::operator > (CTime &t)//转换为秒,在进行比较。
{
if(hour * 3600 + minute * 60 + second > t.hour * 3600 + t.minute * 60 + t.second)
{
return true;
}
else
{
return false;
}
}
bool CTime::operator < (CTime &t)
{
if(hour * 3600 + minute * 60 + second < t.hour * 3600 + t.minute * 60 + t.second)
{
return true;
}
else
{
return false;
}
}
bool CTime::operator >= (CTime &t)
{
if(hour * 3600 + minute * 60 + second >= t.hour * 3600 + t.minute * 60 + t.second)
{
return true;
}
else
{
return false;
}
}
bool CTime::operator <= (CTime &t)
{
if(hour * 3600 + minute * 60 + second <= t.hour * 3600 + t.minute * 60 + t.second)
{
return true;
}
else
{
return false;
}
}
bool CTime::operator == (CTime &t)//小时,分钟,秒数都相同
{
if(hour == t.hour && minute == t.minute && second == t.second)
{
return true;
}
else
{
return false;
}
}
bool CTime::operator != (CTime &t)//小时,分钟,秒数有一个不同即可
{
if(hour != t.hour || minute != t.minute || second != t.second)
{
return true;
}
else
{
return false;
}
}
CTime CTime::operator + (CTime &c)
{
CTime c2;
int time;
//现将两个时间转化为秒,再依次求出小时,分,秒即可。
time = (hour * 3600 + minute * 60 + second) + (c.hour * 3600 + c.minute * 60 + c.second);
c2.hour = time / 3600;
time = time % 3600;
c2.minute = time / 60;
time = time % 60;
c2.second = time;
return c2;
}
CTime CTime::operator - (CTime &c)
{
CTime c2;
int time;
//现将两个时间转化为秒,再依次求出小时,分,秒即可。
time = (hour * 3600 + minute * 60 + second) - (c.hour * 3600 + c.minute * 60 + c.second);
c2.hour = time / 3600;
time = time % 3600;
c2.minute = time / 60;
time = time % 60;
c2.second = time;
return c2;
}
CTime CTime::operator + (int s)
{
int time;
time = hour * 3600 + minute * 60 + second + s;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return (*this);
}
CTime CTime::operator - (int s)
{
int time;
time = hour * 3600 + minute * 60 + second;
time = time - s;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return (*this);
}
CTime CTime::operator ++ (int) //后置
{
CTime temp = (*this);
int time;
time = hour * 3600 + minute * 60 + second + 1;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return temp;//返回自加前的对象
}
CTime CTime::operator ++ ()//前置
{
int time;
time = hour * 3600 + minute * 60 + second +1;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return (*this);//返回自加后的当前对象
}
CTime CTime::operator -- (int)//后置
{
CTime temp = (*this);
int time;
time = hour * 3600 + minute * 60 + second - 1;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return temp;//返回自减前的对象
}
CTime CTime::operator -- ()//前置
{
int time;
time = hour * 3600 + minute * 60 + second - 1;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return (*this);//返回自减后的当前对象
}
CTime CTime::operator += (CTime &c)
{
CTime c2;
c2 = (*this) + c;//调用重载运算符,第一个+号
return c2;
}
CTime CTime::operator -= (CTime &c)
{
CTime c2;
c2 = (*this) - c;//调用重载运算符,第一个-号
return c2;
}
CTime CTime::operator += (int s)
{
CTime c2;
c2 = (*this) + s;//调用重载运算符,第2个+号
return c2;
}
CTime CTime::operator -= (int s)
{
CTime c2;
c2 = (*this) - s;//调用重载运算符,第2个-号
return c2;
}
void main()
{
CTime t1(8,20,25), t2(11,20,50), t;
cout << "t1为:";
t1.display();
cout << "t2为:";
t2.display();
cout << "下面比较两个时间大小:\n" ;
if (t1 > t2) cout << "t1 > t2" << endl;
if (t1 < t2) cout << "t1 < t2" <<endl;
if (t1 == t2) cout <<"t1 = t2" <<endl;
if (t1 != t2) cout << "t1 ≠ t2" << endl;
if (t1 >= t2) cout << "t1 ≥ t2" << endl;
if (t1 <= t2) cout << "t1 ≤ t2" << endl;
cout<<endl;
t = t1 + t2;
cout << "t1 + t2 =";
t.display();
t = t2 - t1;
cout << "t2 - t1 =";
t.display();
t = t1;
t = t + 40;
cout << "t1 + 40s =";
t.display();
t = t2;
t = t - 10;
cout << "t2 - 10s =";
t.display();
t = t1++;
cout << "t1++ =";
t.display();
t = --t2;
cout << "--t2 =";
t.display();
t = t1;
t += t2;
cout << "t1 += t2 , t1 = ";
t.display();
t = t2;
t -= 5;
cout << "t2 -= 5, t2 = ";
t.display();
system("pause");
}
* Copyright (c) 2011, 烟台大学计算机学院学生
* All rights reserved.
* 文件名称: class time
* 作 者: 于昊
* 完成日期: 2012 年 04月 16 日
* 版 本 号: 1.0
* 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:
* 问题分析:
* 算法设计:…
#include <iostream>
using namespace std;
class CTime
{
private:
unsigned short int hour; // 时
unsigned short int minute; // 分
unsigned short int second; // 秒
public:
CTime(int h = 0, int m = 0, int s = 0):hour(h), minute(m), second(s){ }
void setTime(int h, int m, int s);
void display();
//比较运算符(二目)的重载
bool operator > (CTime &t);
bool operator < (CTime &t);
bool operator >= (CTime &t);
bool operator <= (CTime &t);
bool operator == (CTime &t);
bool operator != (CTime &t);
//二目运算符的重载
CTime operator + (CTime &c);//返回c所规定的时、分、秒后的时间,例t1(8,20,25),t2(11,20,50),t1+t2为:41:15
CTime operator - (CTime &c);//对照+理解
CTime operator + (int s);//返回s秒后的时间
CTime operator - (int s);//返回s秒前的时间
//一目运算符的重载
CTime operator ++ (int);//后置++,下一秒
CTime operator ++ ();//前置++,下一秒
CTime operator -- (int);//后置--,前一秒
CTime operator -- ();//前置--,前一秒
//赋值运算符的重载
CTime operator += (CTime &c);
CTime operator -= (CTime &c);
CTime operator += (int s);//返回s秒后的时间
CTime operator -= (int s);//返回s秒前的时间
//重载流插入运算符“>>”
friend istream& operator >> ( istream& , CTime&);
//重载流输出运算符"<<"
friend ostream& operator << ( ostream& , CTime&);
};
//下面实现所有的运算符重载代码。
//为简化编程,请注意通过调用已有函数,利用好各函数之间的关系
istream& operator >> ( istream& input,CTime &c )
{
input>>c.hour >>c.minute >>c.second ;
return input;
}
ostream& operator << ( ostream& output,CTime &c )
{
output<<c.hour <<c.minute <<c.second ;
return output;
}
void CTime::setTime(int h, int m, int s)
{
hour = h;
minute = m;
second = s;
}
void CTime::display()
{
cout << hour << ":" << minute << ":" << second << endl;
}
bool CTime::operator > (CTime &t)//转换为秒,在进行比较。
{
if(hour * 3600 + minute * 60 + second > t.hour * 3600 + t.minute * 60 + t.second)
{
return true;
}
else
{
return false;
}
}
bool CTime::operator < (CTime &t)
{
if(hour * 3600 + minute * 60 + second < t.hour * 3600 + t.minute * 60 + t.second)
{
return true;
}
else
{
return false;
}
}
bool CTime::operator >= (CTime &t)
{
if(hour * 3600 + minute * 60 + second >= t.hour * 3600 + t.minute * 60 + t.second)
{
return true;
}
else
{
return false;
}
}
bool CTime::operator <= (CTime &t)
{
if(hour * 3600 + minute * 60 + second <= t.hour * 3600 + t.minute * 60 + t.second)
{
return true;
}
else
{
return false;
}
}
bool CTime::operator == (CTime &t)//小时,分钟,秒数都相同
{
if(hour == t.hour && minute == t.minute && second == t.second)
{
return true;
}
else
{
return false;
}
}
bool CTime::operator != (CTime &t)//小时,分钟,秒数有一个不同即可
{
if(hour != t.hour || minute != t.minute || second != t.second)
{
return true;
}
else
{
return false;
}
}
CTime CTime::operator + (CTime &c)
{
CTime c2;
int time;
//现将两个时间转化为秒,再依次求出小时,分,秒即可。
time = (hour * 3600 + minute * 60 + second) + (c.hour * 3600 + c.minute * 60 + c.second);
c2.hour = time / 3600;
time = time % 3600;
c2.minute = time / 60;
time = time % 60;
c2.second = time;
return c2;
}
CTime CTime::operator - (CTime &c)
{
CTime c2;
int time;
//现将两个时间转化为秒,再依次求出小时,分,秒即可。
time = (hour * 3600 + minute * 60 + second) - (c.hour * 3600 + c.minute * 60 + c.second);
c2.hour = time / 3600;
time = time % 3600;
c2.minute = time / 60;
time = time % 60;
c2.second = time;
return c2;
}
CTime CTime::operator + (int s)
{
int time;
time = hour * 3600 + minute * 60 + second + s;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return (*this);
}
CTime CTime::operator - (int s)
{
int time;
time = hour * 3600 + minute * 60 + second;
time = time - s;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return (*this);
}
CTime CTime::operator ++ (int) //后置
{
CTime temp = (*this);
int time;
time = hour * 3600 + minute * 60 + second + 1;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return temp;//返回自加前的对象
}
CTime CTime::operator ++ ()//前置
{
int time;
time = hour * 3600 + minute * 60 + second +1;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return (*this);//返回自加后的当前对象
}
CTime CTime::operator -- (int)//后置
{
CTime temp = (*this);
int time;
time = hour * 3600 + minute * 60 + second - 1;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return temp;//返回自减前的对象
}
CTime CTime::operator -- ()//前置
{
int time;
time = hour * 3600 + minute * 60 + second - 1;
hour = time / 3600;
time = time % 3600;
minute = time / 60;
time = time % 60;
second = time;
return (*this);//返回自减后的当前对象
}
CTime CTime::operator += (CTime &c)
{
CTime c2;
c2 = (*this) + c;//调用重载运算符,第一个+号
return c2;
}
CTime CTime::operator -= (CTime &c)
{
CTime c2;
c2 = (*this) - c;//调用重载运算符,第一个-号
return c2;
}
CTime CTime::operator += (int s)
{
CTime c2;
c2 = (*this) + s;//调用重载运算符,第2个+号
return c2;
}
CTime CTime::operator -= (int s)
{
CTime c2;
c2 = (*this) - s;//调用重载运算符,第2个-号
return c2;
}
void main()
{
CTime t1(8,20,25), t2(11,20,50), t;
cout << "t1为:";
t1.display();
cout << "t2为:";
t2.display();
cout << "下面比较两个时间大小:\n" ;
if (t1 > t2) cout << "t1 > t2" << endl;
if (t1 < t2) cout << "t1 < t2" <<endl;
if (t1 == t2) cout <<"t1 = t2" <<endl;
if (t1 != t2) cout << "t1 ≠ t2" << endl;
if (t1 >= t2) cout << "t1 ≥ t2" << endl;
if (t1 <= t2) cout << "t1 ≤ t2" << endl;
cout<<endl;
t = t1 + t2;
cout << "t1 + t2 =";
t.display();
t = t2 - t1;
cout << "t2 - t1 =";
t.display();
t = t1;
t = t + 40;
cout << "t1 + 40s =";
t.display();
t = t2;
t = t - 10;
cout << "t2 - 10s =";
t.display();
t = t1++;
cout << "t1++ =";
t.display();
t = --t2;
cout << "--t2 =";
t.display();
t = t1;
t += t2;
cout << "t1 += t2 , t1 = ";
t.display();
t = t2;
t -= 5;
cout << "t2 -= 5, t2 = ";
t.display();
system("pause");
}
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