第八周C++实验报告(二)
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- #include <iostream>
- using namespace std;
- class CTime
- {
- private:
- unsigned short int hour;
- unsigned short int minute;
- unsigned short int second;
- public:
- CTime(int h=0,int m=0,int s=0);
- void setTime(int h,int m,int s);
- void display();
-
- bool operator > (CTime &t);
- bool operator < (CTime &t);
- bool operator >= (CTime &t);
- bool operator <= (CTime &t);
- bool operator == (CTime &t);
- bool operator != (CTime &t);
-
- CTime operator+(CTime &c);
- CTime operator-(CTime &c);
- CTime operator+(int s);
- CTime operator-(int s);
-
- CTime operator++(int);
- CTime operator++();
- CTime operator--(int);
- CTime operator--();
-
- CTime operator+=(CTime &c);
- CTime operator-=(CTime &c);
- CTime operator+=(int s);
- CTime operator-=(int s);
- };
- CTime::CTime(int h,int m,int s)
- {
- hour=h;
- minute=m;
- second=s;
- }
- 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)
- {
- if(hour>t.hour)
- return true;
- else if(hour<t.hour)
- return false;
- else if(minute>t.minute )
- return true;
- else if(minute<t.minute )
- return false;
- else if(second>t.second )
- return true;
- else if(second<t.second )
- return false;
- return false;
- }
- bool CTime::operator < (CTime &t)
- {
- if(hour<t.hour)
- return true;
- else if(hour>t.hour)
- return false;
- else if(minute<t.minute )
- return true;
- else if(minute>t.minute )
- return false;
- else if(second<t.second )
- return true;
- else if(second>t.second )
- return false;
- return false;
- }
- bool CTime::operator >= (CTime &t)
- {
- CTime t1;
- t1.hour =hour;
- t1.minute =minute ;
- t1.second =second ;
- if (t1<t)
- return false;
- return true;
- }
- bool CTime::operator <= (CTime &t)
- {
- CTime t1;
- t1.hour =hour;
- t1.minute =minute ;
- t1.second =second ;
- if (t1>t)
- return false;
- return true;
- }
- bool CTime::operator == (CTime &t)
- {
- CTime t1;
- t1.hour =hour;
- t1.minute =minute ;
- t1.second =second ;
- if (t1>t)
- return false;
- if (t1<t)
- return false;
- return true;
- }
-
- bool CTime::operator != (CTime &t)
- {
- CTime t1;
- t1.hour =hour;
- t1.minute =minute ;
- t1.second =second ;
- if(t1==t)
- return false;
- return true;
- }
-
- CTime CTime::operator+(CTime &c)
- {
- CTime t;
- t.hour =hour+c.hour ;
- t.minute =minute+c.minute ;
- t.second =second +c.second ;
- if (t.second >59)
- {
- t.minute=(t.minute +t.second/60);
- if (t.minute>59)
- {
- t.hour=(t.hour+t.minute/60);
- if (t.hour>23)
- t.hour=(t.hour %24);
- t.minute=(t.minute %60);
- }
- t.second=(t.second %60);
- }
- if (t.minute>59)
- {
- t.hour=(t.hour +t.minute/60);
- if (t.hour>23)
- t.hour=(t.hour %24);
- t.minute=(t.minute %60);
- }
- if (t.hour>23)
- t.hour=(t.hour %24);
- return t;
- }
- CTime CTime::operator-(CTime &c)
- {
- CTime t;
- unsigned short int k,h;
- t.hour =hour;
- t.minute =minute ;
- t.second =second ;
- if(second<c.second )
- {
- k=(-(second-c.second) )%60;
- h=(-(second-c.second ))/60;
- t.second =(60-k);
- t.minute =(minute-h-1);
- if(t.minute<0)
- {
- t.minute =(-t.minute );
- k=t.minute %60;
- h=t.minute /60;
- t.hour=t.hour-h-1;
- t.minute =(60-k);
- if(t.hour<0)
- {
- t.hour =(-t.hour );
- t.hour =(t.hour %24);
- }
- }
- }
- else
- {
- t.second =second-c.second ;
- }
- if(t.minute<c.minute )
- {
- h=(-(t.minute -c.minute ))%60;
- k=(-(t.minute -c.minute ))/60;
- t.minute =(60-k);
- t.hour=(t.hour-1-h);
- if(t.hour<0)
- {
- t.hour =(-t.hour );
- t.hour =(t.hour %24);
- }
- }
- else
- {
- t.minute =(t.minute-c.minute );
- }
- if(t.hour<c.hour )
- {
- t.hour =(-(t.hour -c.hour ))%24;
- }
- else
- {
- t.hour=(t.hour -c.hour );
- }
-
- return t;
- }
- CTime CTime::operator+(int s)
- {
- CTime t;
-
- t.hour =hour;
- t.minute =minute ;
- t.second =second ;
- t.second =(t.second +s);
- if (t.second >59)
- {
- t.minute+=t.second/60;
- if (t.minute>59)
- {
- t.hour+=t.minute/60;
- if (t.hour>23)
- t.hour%=24;
- t.minute%=60;
- }
- t.second%=60;
- }
- else if (t.minute>59)
- {
- t.hour+=t.minute/60;
- if (t.hour>23)
- t.hour%=24;
- t.minute%=60;
- }
- else if (t.hour>23)
- t.hour%=24;
- return t;
- }
- CTime CTime::operator-(int s)
- {
- CTime t;
- unsigned short int k,h;
- t.hour =hour;
- t.minute =minute ;
- t.second =second ;
- if(t.second <s)
- {
- k=(-(second-s) )%60;
- h=(-(second-s ))/60;
- t.second =(60-k);
- t.minute =(minute-h-1);
- if(t.minute<0)
- {
- t.minute =(-t.minute );
- k=t.minute %60;
- h=t.minute /60;
- t.hour=t.hour-h-1;
- t.minute =(60-k);
- if(t.hour<0)
- {
- t.hour =(-t.hour );
- t.hour =(t.hour %24);
- }
- }
- }
- else
- {
- t.second =second-s;
- }
- return t;
-
- }
-
- CTime CTime::operator++(int)
- {
- CTime temp(*this);
- second++;
- if(second>=60)
- {
- second-=60;
- ++minute;
- }
- return temp;
- }
- CTime CTime::operator++()
- {
- if(++second>=60)
- {
- second-=60;
- ++minute;
- }
-
- return *this;
- }
- CTime CTime::operator--(int)
- {
- CTime temp(*this);
- second--;
- if(second<0)
- {
- second=59;
- --minute;
- }
- return temp;
- }
- CTime CTime::operator--()
- {
- if(--second<0)
- {
- second=59;
- --minute;
- }
- return *this;
- }
-
- CTime CTime::operator+=(CTime &c)
- {
- CTime t1,t;
- t1.hour =hour;
- t1.minute =minute ;
- t1.second =second ;
- t=t1+c;
- hour=t.hour ;
- minute=t.minute ;
- second=t.second ;
- return t;
- }
- CTime CTime::operator-=(CTime &c)
- {
- CTime t1,t;
- t1.hour =hour;
- t1.minute =minute ;
- t1.second =second ;
- t=t1-c;
- hour=t.hour ;
- minute=t.minute ;
- second=t.second ;
- return t;
-
- }
- CTime CTime::operator+=(int s)
- {
- CTime t1,t;
- t1.hour =hour;
- t1.minute =minute ;
- t1.second =second ;
- t=t1+s;
- hour=t.hour ;
- minute=t.minute ;
- second=t.second ;
- return t;
- }
- CTime CTime::operator-=(int s)
- {
- CTime t1,t;
- t1.hour =hour;
- t1.minute =minute ;
- t1.second =second ;
- t=t1-s;
- hour=t.hour ;
- minute=t.minute ;
- second=t.second ;
- return t;
- }
- void main()
- {
- CTime t1(8,20,25),t2(11,20,50),t;
- int n;
- 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;
- cout<<"t1+t2的时间为:";
- t=t1+t2;
- t.display();
- cout<<"t1+t2的时间为:";
- t=t1-t2;
- t.display();
- cout<<endl;
- cout<<"请输入您想增加的秒数:";
- cin>>n;
- t=t1+n;
- cout<<"增加"<<n<<"秒后的时间为:";
- t.display ();
- t=t1-n;
- cout<<"增加"<<n<<"秒前的时间为:";
- t.display ();
- cout<<endl;
- cout<<"对t1后置++,结果为:";
- t=t1++;
- t.display ();
- cout<<"运算结束后,t1的值为:";
- t1.display ();
- cout<<endl;
- cout<<"对t1前置++,结果为:";
- t=++t1;
- t.display ();
- cout<<"运算结束后,t1的值为:";
- t1.display ();
- cout<<endl;
- cout<<"对t1后置--,结果为:";
- t=t1--;
- t.display ();
- cout<<"运算结束后,t1的值为:";
- t1.display ();
- cout<<endl;
- cout<<"对t1前置--,结果为:";
- t=--t1;
- t.display ();
- cout<<"运算结束后,t1的值为:";
- t1.display ();
- cout<<endl;
- cout<<"运算t1+=t2的结果为:";
- t1+=t2;
- t1.display ();
- cout<<endl;
- cout<<"此时t1的值为:";
- t1.display ();
- cout<<"此时t2的值为:";
- t2.display ();
- cout<<endl;
- cout<<"运算t1-=t2的结果为:";
- t1-=t2;
- t1.display ();
- cout<<"此时t1的值为:";
- t1.display ();
- cout<<"此时t2的值为:";
- t2.display ();
- cout<<endl;
- cout<<"请输入您想增加的秒数:";
- cin>>n;
- t1+=n;
- cout<<"t1增加"<<n<<"秒后的时间为:";
- t1.display ();
- cout<<"t2增加"<<n<<"秒前的时间为:";
- t2-=n;
- t2.display ();
- cout<<endl;
- system("PAUSE");
- }