大家注意vector,list,set,map成员函数erase

void Remove1(vector &vec, int num)
{
 vector::iterator iter;
 for (iter=vec.begin(); iter!=vec.end(); ++iter)
 {
  if (*iter == num)
  {
   vec.erase(iter);
  }
 }
}

void Remove2(list &lst, int num)
{
 list::iterator iter;
 for (iter=lst.begin(); iter!=lst.end(); ++iter)
 {
  if (*iter == num)
  {
   lst.erase(iter);
  }
 }
}

int main(void)
{
 int arr[] = {1, 3, 5, 5, 7, 9};
 int num = sizeof(arr) / sizeof(arr[0]);
 vector vec(arr, arr+num);
 list lst(arr, arr+num);

 Remove1(vec, 5);
 copy(vec.begin(), vec.end(), ostream_iterator(cout, " "));

 //Remove2(lst, 5);
 //copy(lst.begin(), lst.end(), ostream_iterator(cout, " "));

 return 0;
}