面向对象中类的分文件编写

案例

Cube.h

 #prama once
 #include 
 //如果用到别的类，写上他们的头文件
 using namespace std;
 
class Cube{
	protected:
		int l,w,h;
		int S,V;
	public:
			Cube();
			Cube(int a,int b,int c);
			int getS();
			int getV();
			int getL();
			int getW();
			int getH();
			bool ifsame(Cube & c);
			void show1(bool ans);
};

Cube.cpp

#inlcude<Cube.h>

		Cube::Cube(){ }
		Cube::Cube(int a,int b,int c){
				l = a;w = b;
				h = c;
				S = 2 * a * b + a * c * 2 + b * c  * 2;
				V = a* b* c;
			}
		int Cube::getS(){
				return S;
			}
		int Cube::getV(){
			return V;
		}
		int Cube::getL(){
			return l;
		}
		int Cube::getW(){
			return w;
		}
		int Cube::getH(){
				return h;
			}
		bool Cube::ifsame(Cube & c){
			if(l == c.getL() && w == c.getW() && h == c.getH()){
				return true;
			}
			else return false;
		}
		void Cube::show1(bool ans){
			if(ans) {
				cout << "yy" << endl;
			}
			else cout << "byy" << endl;
		}

最后在main中include类的头文件
#include