C++分割字符串

vector<string> split(string str, string pattern)
{
 string::size_type pos;
 vector<string> result;
 str += pattern;//在最後加上分割類型，擴展字符串以方便操做
 int size = str.size();
 for (int i = 0; i<size; i++)
 {
  pos = str.find(pattern, i);
  if (pos<size)
  {
   string s = str.substr(i, pos - i);
   result.push_back(s);
   i = pos + pattern.size() - 1;
  }
 }
 return result;
}

int _tmain(int argc, _TCHAR* argv[])
{
 string str;
 getline(cin,str);
 string pattern;
 getline(cin, pattern);//用於獲取含空格的字符串     
 vector<string> result = split(str, pattern);
 cout << "The result:" << endl;
 for (int i = 0; i<result.size(); i++)
 {
  cout << result[i] << endl;
 }
 return 0;
}