六周项目4 静态成员应用

#include
  
   
#include
   
     using namespace std; class Time { public: //Time(int=0,int=0,int=0); void setTime(int h=0,int m=0,int s=0); void is_Righttime(); void show_time( ); //根据is_24和from0，输出适合形式-20:23:5/8:23:5 pm/08:23:05 pm void style_time(); void add_seconds(int); //增加n秒钟 void add_minutes(int); //增加n分钟 void add_hours(int); //增加n小时 static void change24(); //改变静态成员is_24，在12和24时制之间转换 static void changefrom0(); //改变静态成员from0，切换是否前导0 private: static bool is_24; //为true时，24小时制，如20:23:5；为flase，12小时制，显示为8:23:5 pm static bool from0; //为true时，前导0，8:23:5显示为08:23:05 int hour; int minute; int second; }; bool Time::is_24=false; bool Time::from0=false; void Time::setTime(int h,int m,int s) { hour=h; minute=m; second=s; } void Time::change24() { is_24=true; } void Time::changefrom0() { from0=true; } void Time::style_time() { int style; cout<<"请选择输出格式："<
    
     >style; switch(style) { case 1: break; case 2: change24(); break; case 3: changefrom0(); break; case 4: change24(); changefrom0(); break; default: cout<<"输入有误，请重新输入："<
     
      >style; } } void Time::add_seconds(int s) { minute+=s/60; while(minute>=60) minute-=60; hour+=1; hour+=s/3600; while(hour>=24) hour-=24; second+=s%60; if(second>59) { minute=minute+1; second-=60; } } void Time::add_minutes(int m) { hour+=m/60; while(hour>=24) hour-=24; minute+=m%60; while(minute>=60) minute-=60; } void Time::add_hours(int h) { hour+=h%24; while(hour>=24) hour-=24; } void Time::show_time() { bool time; if(!is_24&&!from0) { if(hour>12) { hour-=12; cout<
      
       12) { time=false; hour-=12; if(hour<10) cout<<"0"<
       





        >chose; switch(chose) { case 0: exit(0); case 1: cout<<"请输入增加的秒数:"<
        
         >sec; T.add_seconds(sec); T.style_time(); T.show_time(); break; case 2: cout<<"请输入增加的分数:"<
         
          >min; T.add_minutes(min); T.style_time(); T.show_time(); break; case 3: cout<<"请输入增加的时数:"<
          
           >hour; T.add_hours(hour); T.style_time(); T.show_time(); break; default: cout<<"输入有误，请重新输入："<
           
            >chose; } } return 0; } void Time::is_Righttime() { int hour,minute,second; char a,b; while(1) { cin>>hour>>a>>minute>>b>>second; if(a!=':'||b!=':') cout<<"格式错误，请重新输入："<
            
             24||minute<0||minute>60||second<0||second>60) cout<<"时间有误，请重新输入："<
六周 项目4 静态成员应用
