#include?“iostream“
#include?“iomanip“?
#include?“string“
#include?“fstream“
using?namespace?std;?
//定義最多的讀者?
const?int?Maxr=100;
//定義最多的圖書?
const?int?Maxb=100;
//讀者最多可借的書?
const?int?Maxbor=5;

class?Reader
{
?????private:?
??????int?tag;?//刪除標記?1:已刪?0:未刪?
??????int?no;?//讀者編號?
??????char?name[10];?//讀者姓名?
??????int?borbook[Maxbor];//所借圖書?
?????public:
??????Reader（）?{}?
??????char?*getname（）?{return?name;}?//獲取姓名?
??????int?gettag（）?{return?tag;}?//獲取刪除標記?
??????int?getno（）?{return?no;}?//獲取讀者編號?
void?setname（char?na[]）?//設置姓名?
{?
?????strcpy（namena）;?
}???????
void?delbook（）{?tag=1;?}//設置刪除標記?1:已刪?0:未刪?
void?addreader（int?nchar?*na）//增加讀者?
{?
?????tag=0;?
?????no=n;?
?????strcpy（namena）;?
?????for（int?i=0;i?????borbook[i]=0;?
}?
void?borrowbook（int?bookid）//借書操作?
{?
?????for（int?i=0;i?????{?
?????????if?（borbook[i]==0）?
?????????{?
???????????borbook[i]=bookid;?
???????????return;?

??????????}?
?????}?

}?
int?retbook（int?bookid）//還書操作?
{?
????for（int?i=0;i????{?
??????if（borbook[i]==bookid）?
???????{?
???????borbook[i]=0;?
???????return?1;?
???????}?
????}?
????return?0;?
}?
void?disp（）//讀出讀者信息?
{?
?????cout?<?????for（int?i=0;i?????if（borbook[i]!=0）?
?????cout?<?????cout?<
}?
};?



//讀者類庫，實現建立讀者的個人資料?
class?RDatabase?
{?
??private:?
??int?top;?//讀者記錄指針?
??Reader?read[Maxr];//讀者記錄?
??public:?
??RDatabase（）?//構造函數，將reader.txt讀到read[]中?
??{?
????Reader?s;?
????top=-1;?
????fstream?file（“reader.txt“ios::in）;//打開一個輸入文件?
????while?（1）?
????{?
??????file.read（（char?*）&ssizeof（s））;?
??????if?（!file）break;?
??????top++;?
??????read[top]=s;?
????}?
????file.close（）;?//關閉?reader.txt?
??}?
void?clear（）//刪除所有讀者信息?
{?
??top=-1;?
}?
int?addreader（int?nchar?*na）//添加讀者時先查找是否存在?
{?
??Reader?*p=query（n）;?
??if?（p==NULL）?
??{?
????top++;?
????read[top].addreader（nna）;?
????return?1;
??cout?<??}
??cout<<“該讀者已存在“?<??

}?
Reader?*query（int?readerid）//按編號查找?
{?
??for?（int?i=0;i<=top;i++）?
??if?（read[i].getno（）==readerid?&&?
??read[i].gettag（）==0）?
??{?
????return?&read[i];?
????}?
????return?NULL;?
}?
void?disp（）?//輸出所有讀者信息?
{?
??for?（int?i=0;i<=top;i++）?
??read[i].disp（）;?
}?
void?readerdata（）;//讀者庫維護?
~RDatabase（）?//析構函數，將read[]寫到reader.txt文件中?
{?
??fstream?file（“reader.txt“ios::out）;?
??for?（int?i=0;i<=top;i++）?
??if?（read[i].gettag（）==0）?
??file.write（（char?*）&read[i]sizeof（read[i]））;?
??file.close（）;?

}?
};?
void?RDatabase::readerdata（）?
{?
??char?choice;?
??char?rname[20];?
??int?readerid;?
??Reader?*r;?
??while?（choice!=‘0‘）?
??{?
cout?????????????<<“|==============================================================|“<cout?????????????<<“|??????????????????????????????????????????????????????????????|“<co

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????15386??2009-11-24?00:45??圖書館\圖書館.cpp

?????文件?????487738??2009-11-24?00:45??圖書館\圖書館.exe

?????目錄??????????0??2009-11-24?02:45??圖書館

-----------?---------??----------?-----??----

???????????????503124????????????????????3