#include
     
      #include 
      
       #include
       
        #include
        
         #include 
         
          #include 
          
           using namespace std;/*istream & f(istream&in){ string v; while (in>>v,!in.eof()) { if (in.bad()) throw runtime_error("IO流错误"); if (in.fail()){ cerr << "数据错误，请重试" << endl; in.clear(); in.ignore(100, '\0'); continue; } cout << v << endl; } in.clear(); return in;}*/int main(){ ifstream in("data.txt"); if (!in){ cerr << "无法打开文件" << endl; return -1; } string line; vector
           
            words; while (getline(in, line)) words.push_back(line); in.close(); vector
            
             ::const_iterator it = words.begin(); while (it != words.end()){ istringstream line_str(*it); string word; while (line_str >> word) cout << word << " "; cout << endl; ++it; } system("pause"); return 0;}