//文件名:CHAPTER7-6.cpp
#include <deque>
#include <iostream>
#if _MSC_VER > 1020   // if VC++ version is > 4.2
   using namespace std;  // std c++ libs implemented in std
#endif
int main( ) 
{   deque <int> c1;
   deque <int>::iterator c1_Iter;
   deque <int>::const_iterator c1_cIter;
   c1.push_back( 1 );
   c1.push_back( 2 );
   c1_Iter = c1.begin( ); // 指向deuqe對象的第一個迭代器
   cout << "The first element of c1 is " << *c1_Iter << endl;
   *c1_Iter = 20;
   c1_Iter = c1.begin( );
   cout << "The first element of c1 is now " << *c1_Iter << endl;
   return 0;
}