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习题5-14
#include "stdafx.h" #include<iostream> using namespace std; class Boat; class Car { private: int weight; public: Car(int j) { weight = j; } friend int getTotalWeight(Car &aCar, Boat &aBoat); }; class Boat { private: int weight; public: Boat(int j) { weight = j; } friend int getTotalWeight(Car &aCar, Boat &aBoat); }; int getTotalWeight(Car &aCar, Boat &aBoat) { return aCar.weight + aBoat.weight; } int main() { Car c1(4); Boat b1(5); cout << "The total weight:" << getTotalWeight(c1, b1) << endl; return 0; }
习题5-14
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