#include
#include
using std::cout;
using std::cin;
using std::endl;
using std::string;
class Book
{
public:
Book(string pName,double pPrice,int pNumber);//构造函数时从调用函数传过来参数,所以 用pass的首字母p表示接受传参
void display();
void borrow();
void restore();
private:
string name;
double price;
int number;
};
Book::Book(string pName,double pPrice,int pNumber)
{
name = pName;
price = pPrice;
number = pNumber;
}
void Book::display()
{
cout