急！谁知道overloading和addition的结合怎么写？

daphnechen

overloading和addition的结合怎么写？
有谁会？可以帮我下吗~
一开始要怎么做？
我完全不会~谁可以教教我？
拜托~谢谢~

daphnechen

真的没有人会吗？？
救命啊~！@@

shippo

你是要用overloading operators for +(addition) 吧？？
在什么language?目的是什么麻烦说出来。。。

shippo

1. 
   
2. /*
   
3. 给你一个C++的例子。。。。
   
4. 这里我用overload + 来取得两个vector(a and b)的和。
   
5. */
   
6. #include <iostream>
   
7. using namespace std;
   
8. 
   
9. class CVector {
   
10.   public:
    
11.     int x,y;
    
12.     CVector () {};
    
13.     CVector (int,int);
    
14.     CVector operator + (CVector);
    
15. };
    
16. 
    
17. CVector::CVector (int a, int b) {
    
18.   x = a;
    
19.   y = b;
    
20. }
    
21. 
    
22. CVector CVector::operator+ (CVector param) {
    
23.   CVector temp;
    
24.   temp.x = x + param.x;
    
25.   temp.y = y + param.y;
    
26.   return (temp);
    
27. }
    
28. 
    
29. int main () {
    
30.   CVector a (3,1);
    
31.   CVector b (1,2);
    
32.   CVector c;
    
33.   c = a + b;
    
34.   cout << c.x << "," << c.y<<endl;
    
35.   system("pause");
    
36.   return 0;
    
37. }
    

复制代码

shippo

+ 是一个binary operator ,declare的方法如下：
（下面转载自msdn microsoft)
ret-type operatorop( arg )

where ret-type is the return type, op is one of the operators listed in the preceding table, and arg is an argument of any type.

To declare a binary operator function as a global function, you must declare it in the form:

ret-type operatorop( arg1, arg2 )

where ret-type and op are as described for member operator functions and arg1 and arg2 are arguments. At least one of the arguments must be of class type.

calvenyow

我只懂function overloading

kampung30

overloading很多种咯　，那里一个？