Iterators (c + +)

/* #include <iostream>
#include <vector>
using namespace Std;
int main ()
{
Vector<int> Vecint;
Vecint. Push_back (1);
Vecint. Push_back (2);
Vecint.push_back (3);
int size = Vecint.size ();

Vector<int> VecInt2 (10);

Vector<int> VecInt3 (5, 28);

Vector<int> vecInt4 (VECINT3);
【，）
/ector<int> vecInt5 (Vecint.begin (), Vecint.begin () + 1);
Vector<int> vecInt5 (Vecint.begin (), Vecint.begin () +2);
Vecint.resize (10);//re-expansion of 10 data lengths.

Vector.resize (10);//Reassign 10 Lengths
return 0;

Several uses of

}*/
//iterators:
#include <iostream>
#include <windows.h>
#include <algorithm>// Sort ()
#include <vector>
using namespace std;
void Printfvalue (int& a)
{
 cout << a << endl;
}
BOOL Mysort (int a,int b)
{
 return a > b;//from large to small sort
}
int main ()
{  
  Vector<int> vecint3;//This is how the container is defined.
 vector<int>::iterator itint;//is the way to define the iterator's
 itint = Vecint3.begin ();//First element
 itint = Vecint3.end ();  //The next
 vecint3.push_back (1) that is considered to be the last element from logic;
 vecint3.push_back (2);
 vecint3.push_back (3);
 vecint3.push_back (4);

int num = count (Vecint3.begin (), Vecint3.end (), 28);//Find 28 in Vecint3.begin () to Vecint3.end () range.
cout << num<<endl;
Vector<int>::iterator Itfind = Find (Vecint3.begin (), Vecint3.end (), 2);//function as above, can not find an error
int a = *itfind;
cout << a <<endl<< "**************************" << Endl;

Sort (Vecint3.begin (), Vecint3.end (), mysort);//Sort function (global)

For_each (Vecint3.begin (), Vecint3.end (), printfvalue);//number output in this interval
for (Vector<int>::iterator it = Vecint3.begin (); It! = Vecint3.end (); it++)//use iterators to output 1 to 4
{
cout << *it << endl;//iterator itself is a pointer
}
for (int i = 0; i < vecint3.size (); i++)//Use subscript output 1 to 4
{
cout << Vecint3[i] << Endl;
}

Vector<int>::const_iterator Constit;
Constit = Vecint3.begin ();

Vector<int>::reverse_iterator rlt;//is a reverse iterator
RLT = Vecint3.rend ();
RLT = Vecint3.rbegin ();

GetChar ();//System ("pause");
return 0;

}

Iterators (c + +)