reload.cpp

//
// Created by wbzhang on 2020/8/12.
//
// 函数调用运算符重载
#include <iostream>
using namespace std;

class Distance
{
private:
	int feet;             // 0 到无穷
	int inches;           // 0 到 12
public:
	// 所需的构造函数
	Distance(){
		feet = 0;
		inches = 0;
	}
	Distance(int f, int i){
		feet = f;
		inches = i;
	}
	// 重载函数调用运算符
	Distance operator()(int a, int b, int c)
	{
		Distance D;
		// 进行随机计算
		D.feet = a + c + 10;
		D.inches = b + c + 100 ;
		return D;
	}
	// 显示距离的方法
	void displayDistance()
	{
		cout << "F: " << feet <<  " I:" <<  inches << endl;
	}

};
int main()
{
	Distance D1(11, 10), D2;

	cout << "First Distance : ";
	D1.displayDistance();

	D2 = D1(10, 10, 10); // invoke operator()
	cout << "Second Distance :";
	D2.displayDistance();

	return 0;
}