c/c++语言开发共享设计一个多功能的MyTime类 代码参考

  1 #include <iostream>   2 #include <cstdio>   3    4 using namespace std;   5    6 class mytime   7 {   8     private:   9         int hour;  10         int minute;  11         int second;  12     public:  13         mytime(){hour=0;minute=0;second=0;}  14         mytime(int,int,int);  15         void register(int,int,int);  16         void show_12();  17         void show_24();  18         void sub(int,int,int);  19         void add(int,int,int);  20 };  21   22 mytime::mytime(int a, int b, int c)  23 {  24     hour=a;  25     minute=b;  26     second=c;  27 }  28   29 void mytime::show_12()  30 {  31     if(hour>11)  32     {  33         printf("%02d:%02d:%02d pmn",hour-12,minute,second);  34     }  35     else  36     {  37         printf("%02d:%02d:%02d amn",hour,minute,second);  38     }  39     return;  40 }  41   42 void mytime::show_24()  43 {  44     printf("%02d:%02d:%02dn",hour,minute,second);  45     return;  46 }  47   48 void mytime::sub(int a, int b, int c)  49 {  50     hour-=a;  51     minute-=b;  52     second-=c;  53     while(second<0)  54     {  55         second+=60;  56         minute-=1;  57     }  58     while(minute<0)  59     {  60         minute+=60;  61         hour-=1;  62     }  63     while(hour<0)  64     {  65         hour+=24;  66     }  67     return;  68 }  69   70 void mytime::add(int a, int b, int c)  71 {  72     hour+=a;  73     minute+=b;  74     second+=c;  75     while(second>59)  76     {  77         second-=60;  78         minute+=1;  79     }  80     while(minute>59)  81     {  82         minute-=60;  83         hour+=1;  84     }  85     while(hour>23)  86     {  87         hour-=24;  88     }  89     return;  90 }  91   92 void mytime::register(int a,int b, int c)  93 {  94     hour=a;  95     minute=b;  96     second=c;  97     return;  98 }  99  100 int main() 101 { 102     mytime one,two(8,10,30); 103     int a,b,c,x,y,z; 104     cin>>a>>b>>c>>x>>y>>z; 105     one.show_12(); 106     one.show_24(); 107     two.show_12(); 108     two.show_24(); 109     one.register(a,b,c); 110     one.add(x,y,z); 111     two.sub(x,y,z); 112     one.show_12(); 113     one.show_24(); 114     two.show_12(); 115     two.show_24(); 116     return 0; 117 }