请教关于字符串流的一个小问题

[zhanchili]

打开一个文件，把其中的内容按行存入一个vector中，再利用字符串流把每个单词输出到屏幕。（我写的代码只能输出来第一行）
#include<string>
#include<iostream>
#include<fstream>
#include<sstream>
#include<vector>
using namespace std;
int main()
{
cout<<"给个文件："<<endl;
string name;
cin>>name;
ifstream instream(name.c_str());
string line;
vector<string>lines;
for(;;)
{
getline(instream,line);
lines.push_back(line);
if(instream.eof())
break;
}
instream.clear();
instream.close();
istringstream word;
for(vector<string>::const_iterator itr=lines.begin();itr!=lines.end();itr++)
{
word.str(*itr);
string aWord;
while(word>>aWord)
cout<<aWord<<'\n';
}
return 0;
}

[HelloDan]

#include <string>
#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
using namespace std;
int main()
{
cout <<"给个文件：" <<endl;
string name;
cin>>name;
ifstream instream(name.c_str());
string line;
vector <string>lines;
while(getline(instream,line))
{

lines.push_back(line);

}
//instream.clear();
instream.close();
     
for(vector <string>::const_iterator itr=lines.begin();itr!=lines.end();itr++)
{
istringstream word(*itr);
string aWord;
while(word>>aWord)
cout <<aWord <<'\n';
}
return 0;
} 

[hanlin1985]

#include <string>
#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
using namespace std;
int main()
{
cout < <"给个文件：" < <endl;
string name;
cin>>name;
ifstream instream(name.c_str());
string line;
vector <string>lines;
for(;;)
{
getline(instream,line);
lines.push_back(line);
if(instream.eof())
break;
}
instream.clear();
instream.close();
istringstream word;
for(vector <string>::const_iterator itr=lines.begin();itr!=lines.end();itr++)
{
word.str(*itr);
string aWord;
while(word>>aWord)
cout < <aWord < <'\n';
word.clear();
}
return 0;
}

[zhanchili]

请问word流是在哪个地方出了错呢?需要word.clear()才能继续.

[zhanchili]

顶一下贴。