#include <list>
#include <iostream>

using namespace std;

// 函数功能：正序显示
void Display(list <int> c)
{
 list <int>::iterator Iter;

 cout << "list =";
 for ( Iter = c.begin( ); Iter != c.end( ); Iter++ )
  cout << " " << *Iter;
 cout << endl;
}

// 函数功能：倒序显示
void Rev_Display(list <int> c)
{
 list <int>::reverse_iterator rvIter;
 
 cout << "list =";
 for ( rvIter = c.rbegin( ); rvIter != c.rend( ); rvIter++ )
  cout << " " << *rvIter;
 cout << endl;
}

int main( )
{
 list <int> c1, c2;
 list <int>::iterator Iter;

 c1.push_back( 10 ); // c1,c2各初始化3个值
 c1.push_back( 20 );
 c1.push_back( 30 );
 c2.push_back( 40 );
 c2.push_back( 50 );
 c2.push_back( 60 );
 
 // 正序c1
 Display(c1);
 
 // 倒序c1
 Rev_Display(c1);
 
 // c1插入100
 Iter = c1.begin( );
 Iter++;
 c1.insert( Iter, 100 );
 Display(c1);

 // c1插入2个200
 Iter = c1.begin( );
 Iter++;
 Iter++;
 c1.insert( Iter, 2, 200 );
 Display(c1);

 // c1中插入c2
 c1.insert( ++c1.begin( ), c2.begin( ),--c2.end( ) );
 Display(c1);

 return 0;
}