1 int main()
   2 {
   3     Ps ps;
   4     ProcessUtil::getProcessInfo(ps);
   5 
   6     for (Ps::iterator it = ps.begin(); it != ps.end(); it++)
   7     {
   8         cout << (*it).pid << " " << (*it).cmd << endl;
   9     }
  10     return 0;
  11 }