c++学习c++学习.zip

#include <iostream> using namespace std; class Box { public: static int objectCount; Box(double l=2.0, double b=2.0, double h=2.0) { cout <<"Constructor called." << endl; length = l; breadth = b; height = h; objectCount++; } double Volume() { return length * breadth * height; } private: double length; double breadth; double height; }; int Box::objectCount = 0; int main(void) { Box Box1(3.3, 1.2, 1.5); Box Box2(8.5, 6.0, 2.0); cout << "Total objects: " << Box::objectCount << endl; return 0; }