Accelerated C++ 习题解答 第5章

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EX.5-0

1)

#include <iostream>
#include <vector>
#include <string>
#include <cctype>
#include <conio.h>
 
using std::cin;
using std::cout;
using std::endl;
using std::vector;
using std::string;
 
vector<string> split (conststring& s)
{
   vector<string>ret;
   typedef string::size_type string_size;
   string_size i = 0;
 
   while (i != s.size()) {
      while (i != s.size() && isspace(s[i]))
        ++i;
 
      string_size j = i;
 
      while (j != s.size() && !isspace(s[j]))
        ++j;
 
      if (i != j) {
        ret.push_back(s.substr(i,j-i));
        i = j;
      }
   }
   return ret;
}
 
int main()
{
   string s;
   while (getline (cin, s)) {
      vector<string>v = split(s);
 
      for (vector<string>::size_type i = 0; i !=v.size(); ++i) {
        cout <<v[i] << endl;
      }
   }
   getch();
   return 0;
}#include <