请问istringstream的用法

[mmosquito]

istringstream is("hello world");
string s,str;
str = is.str() ; //str = hello world
is >> s; //s = hello
str = is.str() ; //str = hello world why not str = world?

而我期望最后str = world
怎么实现？

[xianshiqi]

学习

[iamcaicainiao]

顶

[iamcaicainiao]

关注，这个istringstream是什么咚咚我还不清楚呢

[sinall]

istringstream is("hello world");
string s,str;
str = is.str() ; //str = hello world
is >> s; //s = hello
is >> str;

[lyn10155]

我也不懂

[mmosquito]

to sinall
ok..
istringstream is("hello world hello sinall" );
string s,str;
str = is.str() ;
is >> s; //s = hello
how to get the rest "world hello sinall" ?

[sinall]

小弟这块学的不好。说错勿怪。

#include <iostream>
#include <vector>
#include <sstream>
using namespace std;

int main()
{
istringstream is("hello world hello sinall");
string s,str;
str = is.str() ; //str = hello world
is >> s; //s = hello
vector<char> vc(100);
long cur = is.tellg();
long size = is.rdbuf()->pubseekoff(0, ios::end, ios::in);
is.rdbuf()->pubseekpos(cur, ios::in);
is.read(&vc[0], size-cur);
cout << &vc[0] << endl;
}

[JOKER_UFO]

我在里面找到了一个函数可取出你要的东西：
#include<istream>
#include<sstream>
#include<string.h>
#include<iostream>
#include<ostream>
using namespace std;
int main()
{
istringstream is("hello world");
string s,str,k;
str = is.str() ; //str = hello world
is >>s; //s = hello
//k = str - s;
cout<<str<<endl;
cout<<s<<endl;
cout<<k<<endl;
cout<<is.rdbuf()<<endl;//得到后面的字符串
return 0;
}