图书管理

#include <bits/stdc++.h>
using namespace std;
struct book{
	string name;
	float money;
	string cbs;
	string writer;
	int kc;
	string id;
};
int main(){
	while(1){
		cout<<"****图书管理****"<<endl;
		cout<<"1.***书名***"<<endl;
		map<string,book> n_map;
		book b;
		string data;
		ifstream a;
		a.open("book.txt"); 
		while(getline(a,data)){
			if(data.length()>5){
				int length=data.find("|");
				b.name=data.substr(0,length);
				cout<<b.name<<endl;
				
				data=data.substr(length+1);
				length=data.find("|");
				b.cbs=data.substr(0,length);
				cout<<b.cbs<<endl;   
				
				data=data.substr(length+1);
				length=data.find("|");
				b.money=stoi(data.substr(0,length));
				cout<<b.money<<endl;
				
				data=data.substr(length+1);
				length=data.find("|");
				b.writer=data.substr(0,length);
				cout<<b.writer<<endl;
				
				data=data.substr(length+1);
				length=data.find("|");
				b.kc=stoi(data.substr(0,length));
				cout<<b.kc<<endl;
				
				data=data.substr(length+1);
				length=data.find("|");
				b.id=stoi(data.substr(0,length));
				cout<<b.id<<endl;
			}
			if(a.eof()){
	            cout<<"end"<<endl;
	            break;    
	        }
		}
		a.close();
		n_map["yuwne"]=b;
		n_map["shuxue"]=b;
		n_map["yingyu"]=b;
		n_map.insert(pair<string,book>("yuwen",b));
		int n;
		cin>>n;
		string name;
		switch(n){
			case 1:
				cout<<"请输入书名(写拼音)"<<endl;
				cin>>name;
				
		}
	}
	return 0;
}