#include <iostream>
#include <string>
#include <sstream>
using namespace std;
int main()
{
string word;
string line;
while (getline(cin,line))
{
istringstream istr(line);
while(istr>>word)
cout<<word<<"#";
cout<<endl;
}
return 0;
}
注释：上述的两个操作，相当于在输入流中加入了eof操作