程序设计基础实验报告(17)

#define BOOK_H

class Book {

public: Book(); static void add(); static void output(); static void find_n(); static void find_t(); static void modify_n(); static void modify_t(); static void delete_n(); static void delete_t(); static void sort(); static void save(); static void load (); Book & operator=(Book & Temp); friend istream & operator >> (istream & scin, Book & Temp); friend ostream & operator << (ostream & scout, Book & Temp); private: char number[8]; char title[20]; int quantity; static int NumBook; };

Book b[100];

int Book::NumBook=0;

void Book::add() { char flag='Y'; while(toupper(flag)=='Y') { cin>>b[NumBook]; NumBook++; cout<<"要继续添加吗(y/n)"; cin>>flag; if(toupper(flag)!='Y') { if(toupper(flag)=='N') { break; } else {