天上掉下两毛钱

#include using namespace std; //const int TURE = 1; //const int FALSE = 0; class area { private: double l; double h; public: area(double l1=0,double h1=0); bool operator >(area &temp); bool opera

#include class shape { public: virtual void printArea() =0; }; class Rectangle:public shape //矩形 { private: double l,k,h; public: virtual void printArea() { cout<<"矩形面积="<<l*k*h<<endl; } Re

#include class point { public: int x,y; point operator ++(); //自加 point operator ++(int); // point operator --(); //自减 point operator --(int); // point operator + (point &a); point

#include using namespace std; class aa { private: int num; int quantity; float price; static float discount; static float sum; static int n; public: aa(int n,int q,float p) { num=n;price=p;

//矩阵相加 #include using namespace std; class aa { private: int a[2][3]; public: aa(); aa operator + (aa c1); void display(); }; aa::aa() { for(int i=0;i<2;i++) for(int j=0;j<3;j++) { a[

#include using namespace std; class date; class time; class time { public: time(int ,int ,int ); friend void display(date &d,time &t); private: int hour; int minute; int sec; }; class date { p

#include using namespace std; class complex { private: double real; double imag; public: complex(){real=0;imag=0;} complex(double r,double i) { real=r;imag=i; } complex operator +(complex &c2