?? 07d2.cpp
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/*
NIIT 《C++ & CGI PROGRAMMING &SCRRIPTING》 Skill Base
教材P7.9 7.D.2
審核:周永 Laozhou@swpi.edu.cn 23:53 2004-10-18
測(cè)試環(huán)境:Microsoft Windowsn 2000(VC++);Red Hat Linux 7.3;Red Hat Linux 9.0
*/
#include <iostream.h>
class Number
{
private:
int number;
public:
friend Number operator +(int, const Number &); //Operation
Number(int = 0); //Constructor
void display();
};
Number::Number(int num)
{
number = num;
}
void Number :: display()
{
cout << number << endl;
}
Number operator +(int left, const Number &objRHS)
{
Number temp;
temp.number = left + objRHS.number;
return temp;
}
int main()
{
Number num1(100);
Number tot;
tot = 50 + num1;
tot.display(); //Displays 150
return 0;
}
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