cpp primer 习题 10.28

#include <iostream>
#include <map>
#include <string>
using namespace std;
int main()
{
	multimap<string,string> authors;
	string author,work,search_item;
	//建立作者及其作品的multimap容器
	do 
	{
		cout<<"Enter author name:"<<endl;
		cin>>author;
		if(!cin)
			break;
		cout<<"Enter author's works:"<<endl;
		while(cin>>work)
			authors.insert(make_pair(author,work));
		cin.clear();//读入一位作者的所有作品后使流重新有效
	} while(cin);
	cin.clear();//使流重新有效
	//读入要找的作品
	cout<<"Who is the author that you want erase:"<<endl;
	cin>>search_item;
	//找到该作者对应的第一个元素
	multimap<string,string>::iterator iter=authors.find(search_item);
	if (iter!=authors.end())
	{
		authors.erase(search_item);//erase将删除键的所有值
	} 
	else
	{
		cout<<"can not find this author!"<<endl;
	}
	cout<<"author/t/twork:"<<endl;
	for (iter=authors.begin();iter!=authors.end();++iter)
	{
		cout<<iter->first<<"/t/t"<<iter->second<<endl;
	}
	return 0;
}