iphone怎么利用应用程序添加图书

1、在iphone和电脑连接以后，打开itunes来点击左上角的图标并选择将文件添加到资料库。

2、下一步会d出一个新的窗口，选择自己需要导入的文件来打开。

3、这个时候返回主界面，在图示的位置点击那个手机图标以进入控制界面。

4、这样一来在左侧选择图书和在右侧勾选同步图书并选定自己需要导入的图书以后，确定应用即可实现iphone利用应用程序添加图书了。

#include <cstring>

#include <vector>

#include <fstream>

#include <map>

#include <iostream>

#include <algorithm>

using namespace std

class Library{

map<string,string>book_num

vector<string>people_num

map<string,string>::iterator ib

vector<string>::iterator ip

public:

Library(){

ib=book_num.begin()

ip=people_num.begin()

}

void set_book_num(string,string)

void delete_book_num(string)

void find_book_num(string)

void change_booke_num(string,string)

void add_people_num(string)

void lend_num(string,string)

void return_num(string,string)

void file_book(vector<string>::iterator)

void file_people(vector<string>::iterator)

}

void Library::set_book_num(string A,string B){

book_num.insert(A,B)

}

void Library::add_people_num(string A){

people_num.push_back(A)

}

void Library::find_book_num(string A){

map<string,string>::iterator result =find(book_num.begin(), book_num.end(), A)

if(result==book_num.end())

cout<<"图书馆中查无此书!"<<endl

else

cout<<"图书馆中此书信息如下:"<<endl

cout<<result->first<<":"<<result->second<<endl

}

void Library::delete_book_num(string A){

map<string,string>::iterator result =find(book_num.begin(), book_num.end(), A)

if(result==book_num.end())

cout<<"图书馆中查无此书!"<<endl

else

book_num.erase(result)

cout<<"已成功删除该书在图书馆中的记录"<<endl

}

void Library::change_booke_num(string A,string B){

map<string,string>::iterator result =find(book_num.begin(), book_num.end(), A)

if(result==book_num.end())

cout<<"图书馆中查无此书!"<<endl

else

result->second=B

}

void Library::file_people(vector<string>::iterator ifp){

ofstream file_p

file_p.open("/Users/apple/Documents/Library_p.txt",ios::out)

if(!file_p.is_open())

{

cerr<<"open file_people fail"<<endl

exit(-1)

}

file_p<<*ifp<<endl

file_p.close()

}

void Library::file_book(vector<string>::iterator ibp){

ofstream file_b

file_b.open("/Users/apple/Documents/Library_b.txt",ios::out)

if(!file_b.is_open())

{

cerr<<"open file_people fail"<<endl

exit(-1)

}

file_b<<*ibp<<endl

file_b.close()

}

---