#include <iostream>
#include <string>
#include <sstream>
#include <vector>
using namespace std;
int main() {
//用于存放分割后的字符串
vector<string> res;
//待分割的字符串,含有很多空格
string word = " Hello, I want to learn C++! ";
//暂存从word中读取的字符串
string result;
//将字符串读到input中
stringstream input(word);
//依次输出到result中,并存入res中
while (input >> result)
res.push_back(result);
//输出res
for (int i = 0; i < res.size(); i++) {
cout << res[i] << endl;
}
return 0;
}