operator(1)算术与比较例子 - lovemu

 1 #include "stdafx.h"
 2 #include <iostream>
 3 #include <math.h>
 4 using namespace std;
 5 class Room
 6 {
 7 public:
 8     Room()
 9     {
10     }
11     ~Room()
12     {
13     }
14     void setHeight(double ht)
15     {
16         value = ht;
17     }
18     double getHeight()
19     {
20         return (value);
21     }
22     bool operator > (const Room& rh)//比较
23     {
24         if(value > rh.value)
25             return true;
26         else
27             return false;
28     }
29     Room operator+(Room& rh)
30     {
31         Room lh;
32         lh.value = value + rh.value;
33         return lh;
34     }
35     Room operator-(Room& rh)
36     {
37         Room lh;
38         lh.value = fabs(value - rh.value);
39         return lh;
40     }
41     double value;
42 };
43 
44 int _tmain(int argc, _TCHAR* argv[])
45 {
46     Room room1,room2,room,room3;
47     room1.setHeight(4.6);
48     room2.setHeight(4.8);
49     if(room1 > room2)
50         cout<<"房间1比房间2高"<<endl;
51     else
52         cout<<"房间1比房间2低"<<endl;
53     room= room1+room2;
54     cout<<"房间高度和为 "<<room.value<<endl;
55     room3 = room1-room2;
56     cout<<"房间高度差为 "<<room3.value<<endl;
57     
58     return 0;
59 }
posted on 2012-08-23 09:45 lovemu 阅读(283) 评论(0) 收藏举报
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