图书订购系统.doc

/图书订购系统#include#includeusing namespace std;#includebuy.h#includebook.hconst int x=20;class orderpublic:order();void setbuyid(int b_id);void buy_one_book(string b_id);void display();private:static int ordercount;int orderID;int buyerID;int listcount;string orderlist20;order:order()buyerID=0;ordercount+;orderID=ordercount;listcount=0;void order:setbuyid(int b_id)buyerID=b_id;void order:buy_one_book(string b_id)orderlistlistcount=b_id;listcount+;void order:display()coutn订单信息nn订单号:orderIDendl购书人编号:buyerIDendl购买图书编号:endl;for(int i=0;ilistcount;i+)couttorderlistiendl;coutendl;int order:ordercount=0;int main()int buyerid,flag,j=0;book* c2;common b1(黄潮州,1,宁都,0);vip b2(肖心远,2,南昌,0.6,0);member b3(谢小汶,3,于都,5,0);order ol20;buyer* b3=&b1,&b2,&b3;book c1(C1,C+ programe,谭浩强,清华,35);book c2(C2,data structure,徐天风,北大,20);c0=&c1;c1=&c2;cout购书人信息:nn;for(int i=0;idisplay();coutn图书信息:nn;for(i=0;idisplay();while(j2)coutnnbuyerid;flag=0;for(i=0;igetid()=buyerid)flag=1;break;if(!flag)cout编号不存在！setpay(c0-getprice();bi-setpay(c1-getprice();coutendl购书人需要付费:getpay()getid();olj.buy_one_book(c0-getbook_ID();olj.buy_one_book(c1-getbook_ID();olj.display();j+;return 0;/book.hclass bookprotected:string book_ID;string book_name;string author;string publish;double price;public:book();book(string b_id,string b_n,string au,string pu,double pr);void display();string getbook_ID();string getbook_name();string getauthor();string getpublish();double getprice();book:book(string b_id,string b_n,string au,string pu,double pr)book_ID=b_id;book_name=b_n;author=au;publish=pu;price=pr;book:book()book_ID=;book_name=;author=;publish=;price=0;void book:display()cout书名:book_nameendl书号:book_IDendl作者:authorendl出版社:publishendl定价:priceendl;string book:getbook_ID()return book_ID;string book:getbook_name()return book_name;string book:getauthor()return author;string book:getpublish()return publish;double book:getprice()return price;/buy.hclass buyerprotected:string name;int buyerID;string addr;double pay;public:buyer();buyer(string n,int b,string a,double p);string getbuyername();string getaddr();double getpay();int getid();virtual void display();virtual void setpay(double=0)=0; ;class member:public buyerint leaguer_grade;public:member(string n,int b,string a,double p,int l):buyer(n,b,a,p)leaguer_grade=l;void display();void setpay(double p);class vip:public buyerdouble discount_rate;public:vip(string n,int b,string a,double p,double d):buyer(n,b,a,p)discount_rate=d;void display();void setpay(double p);class common:public buyerpublic:common(string n,int b,string a,double p):buyer(n,b,a,p)void display();void setpay(double p);buyer:buyer(string n,int b,string a,double p)name=n;buyerID=b;addr=a;pay=p;double buyer:getpay()return pay;string buyer:getaddr()return addr;string buyer:getbuyername()return name;int buyer:getid()return buyerID;void member:display()cout购书人姓名:namet购书人编号:buyerIDt购书人会员级别:leaguer_graden地址:addrnn;void member:setpay(double p)if(leaguer_grade=1)pay=0.95*p+pay;else if(leaguer_grade=2)pay=0.90*p+pay;else if(leaguer_grade=3)pay=0.85*p+pay;else if(leaguer_grade=4)pay=0.8*p+pay;else if(leaguer_grade=5)pay=0.75*p+pay;elsecout级别错误endl;void vip:display()cout购书人姓名:namet购书人编号:buyerIDtVIP折扣率:discount_rate*100%n地址:add