图书管理系统c代码.docx
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- 上传时间:2023-04-28
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图书管理系统c代码.docx
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图书管理系统c代码
#include
#include
#include
#include
usingnamespacestd;
constintReader=100;
constintMaxb=100;
constintBor=5;
classStudent
{
private:
inttag;
intnumber;
charname[10];
intborbook[Bor];
public:
Student(){}
char*getname()
{
returnname;
}
intgettag()
{
returntag;
}
intgetnumber()
{
returnnumber;
}
voidsetname(char*na)
{
strcpy(name,na);
}
voiddelbook()
{
tag=1;
}
voidaddStudent(intn,char*na)
{
tag=0;
number=n;
strcpy(name,na);
for(inti=0;i borbook[i]=0; } voidborrowbook(intbookid)//借书操作 { for(inti=0;i { if(borbook[i]==0) { borbook[i]=bookid; return; } } } intretbook(intbookid)//还书操作 { for(inti=0;i { if(borbook[i]==bookid) { borbook[i]=0; return1; } } return0; } voidoutput()//读出读者信息 { cout< ["; for(inti=0;i if(borbook[i]! =0) cout< cout<<"]"< } }; classRData { private: inttop;//读者记录指针 Studentread[Reader]; public: RData()//构造函数,将Student.txt读到read[]中 { Students; top=-1; fstreamfile("Student.txt",ios: : in);//打开一个输入文件 while (1) { file.read((char*)&s,sizeof(s)); if(! file)break; top++; read[top]=s; } file.close(); } voidclear() { top=-1; } intaddStudent(intn,char*na)//查找是否存在 { Student*p=equal(n); if(p==NULL) { top++; read[top].addStudent(n,na); return1; } return0; } Student*equal(intStudentid)//按编号查找 { for(inti=0;i<=top;i++) if(read[i].getnumber()==Studentid&& read[i].gettag()==0) { return&read[i]; } returnNULL; } voidoutput() { for(inti=0;i<=top;i++) read[i].output(); } voidStudentdata();//读者库维护 ~RData()//析构函数,将read[]写到Student.txt文件中 { fstreamfile("Student.txt",ios: : out); for(inti=0;i<=top;i++) if(read[i].gettag()==0) file.write((char*)&read[i],sizeof(read[i])); file.close(); } }; voidRData: : Studentdata() { charchoice; charrname[20]; intStudentid; Student*r; while(choice! ='0') { cout<<"┏━━━━━━━━━━━━━┓\n"; cout<<"┃读者维护┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃1.新增┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃2.更改┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃3.删除┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃4.查找┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃5.显示┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃6.全删┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃0.退出┃\n"; cout<<"┗━━━━━━━━━━━━━┛\n"; //cout<< cin>>choice; switch(choice) { case'1': cout<<"输入读者编号: "; cin>>Studentid; cout<<"输入读者姓名: "; cin>>rname; addStudent(Studentid,rname); break; case'2': cout<<"输入读者编号: "; cin>>Studentid; r=equal(Studentid); if(r==NULL) { cout<<"该读者不存在"< break; } cout<<"输入新的姓名: "; cin>>rname; r->setname(rname); break; case'3': cout<<"输入读者编号: "; cin>>Studentid; r=equal(Studentid); if(r==NULL) { cout<<"该读者不存在"< break; } r->delbook(); break; case'4': cout<<"读入读者编号: "; cin>>Studentid; r=equal(Studentid); if(r==NULL) { cout<<"该读者不存在"< break; } r->output(); break; case'5': output(); break; case'6': clear(); break; default: cout<<"退出: \n";system("cls");break; } } } classBook { private: inttag; intnumber; charname[20]; intonshelf; public: Book(){} char*getname() { returnname; } intgetnumber() { returnnumber; } intgettag() { returntag; } voidsetname(charna[]) { strcpy(name,na); } voiddelbook() { tag=1; } voidaddbook(intn,char*na) { tag=0; number=n; strcpy(name,na); onshelf=1; } intborrowbook()//借书操作 { if(onshelf==1) { onshelf=0; return1; } return0; } voidretbook()//还书操作 { onshelf=1; } voidoutput()//输出图书 { cout< <<(onshelf==1? "在架": "已借")< } }; classBDatabase { private: inttop; Bookbook[Maxb];//图书记录 public: BDatabase()//构造函数,将book.txt读到book[]中 { Bookb; top=-1; fstreamfile("book.txt",ios: : in); while (1) { file.read((char*)&b,sizeof(b)); if(! file)break; top++; book[top]=b; } file.close(); } voidclear() { top=-1; } intaddbook(intn,char*na) { Book*p=equal(n); if(NULL==p) { top++; book[top].addbook(n,na); return1; } return0; } Book*equal(intbookid) { for(inti=0;i<=top;i++) if(book[i].getnumber()==bookid&&book[i].gettag()==0) { return&book[i]; } returnNULL; } voidbookdata(); voidoutput() { for(inti=0;i<=top;i++) if(book[i].gettag()==0) book[i].output(); } ~BDatabase()//析构函数,将book[]写到book.txt文件中 { fstreamfile("book.txt",ios: : out); for(inti=0;i<=top;i++) if(book[i].gettag()==0) file.write((char*)&book[i],sizeof(book[i])); file.close(); } }; voidBDatabase: : bookdata() { charchoice; charbname[40]; intbookid; Book*b; while(choice! ='0') { cout<<"┏━━━━━━━━━━━━━┓\n"; cout<<"┃图书维护┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃1.新增┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃2.更改┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃3.删除┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃4.查找┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃5.显示┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃6.全删┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃0.退出┃\n"; cout<<"┗━━━━━━━━━━━━━┛\n"; cin>>choice; switch(choice) { case'1': cout<<"输入图书编号: "< cin>>bookid; cout<<"输入图书书名: "< cin>>bname; addbook(bookid,bname); break; case'2': cout<<"输入图书编号: "< cin>>bookid; b=equal(bookid); if(b==NULL) { cout<<"该图书不存在"< break; } cout<<"输入新的书名: "< cin>>bname; b->setname(bname); break; case'3': cout<<"读入图书编号: "< cin>>bookid; b=equal(bookid); if(b==NULL) { cout<<"该图书不存在"< break; } b->delbook(); break; case'4': cout<<"读入图书编号: "< cin>>bookid; b=equal(bookid); if(b==NULL) { cout<<"该图书不存在"< break; } b->output(); break; case'5': output(); break; case'6': clear(); break; default: cout<<"退出\n";system("cls");break; } } } voidmain() { charchoice; intbookid,Studentid; RDataStudentDB; Student*r; BDatabaseBookDB; Book*b; while(choice! ='0') { cout<<"┏━━━━━━━━━━━━━┓\n"; cout<<"┃图书管理系统┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃1.借书┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃2.还书┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃3.图书维护┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃4.读者维护┃\n"; cout<<"┃━━━━━━━━━━━━━┃\n"; cout<<"┃0.退出┃\n"; cout<<"┗━━━━━━━━━━━━━┛\n"; cin>>choice; switch(choice) { case'1': system("cls"); cout<<"借书读者编号: "; cin>>Studentid; cout<<"图书编号: "; cin>>bookid; r=StudentDB.equal(Studentid);//按编号查找 if(NULL==r) { cout<<"不存在该读者,不能借书"< break; } b=BookDB.equal(bookid); if(b==NULL) { cout<<"不存在该图书,不能借书"< break; } if(b->borrowbook()==0) { cout<<"该图书已借出,不能借书"< break; } r->borrowbook(b->getnumber());system("cls"); break; case'2': system("cls"); cout<<"还书\n读者编号: "; cin>>Studentid; cout<<"图书编号: "; cin>>bookid; r=StudentDB.equal(Studentid); if(r==NULL) { cout<<"不存在该读者,不能还书"< break; } b=BookDB.equal(bookid); if(b==NULL) { cout<<"不存在该图书,不能还书"< break; } b->retbook(); r->retbook(b->getnumber()); break; case'3': system("cls"); BookDB.bookdata(); break; case'4': system("cls"); StudentDB.Studentdata(); break; default: cout<<"退出\n"; } } }
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