deque双向队列

#include <iostream>  
#include <deque>  
#include <string>  
#include <algorithm>  
 
using namespace std; 
 
int main() 
{ 
    deque<string> strDeq; 
 
    strDeq.assign(4,string("CHINA")); 
    strDeq.push_back("first_string"); 
    strDeq.push_front("last_string"); 
 
    copy(strDeq.begin(),strDeq.end(), 
        ostream_iterator<string>(cout," ")); 
    cout << endl; 
    cout << endl; 
 
    for(int i = 0;i < strDeq.size();++i) 
        cout << "strDeq[" << i << "] : " << strDeq[i] << endl; 
    cout << endl; 
     
    for(int i = 0;i < strDeq.size();++i) 
        cout << "strDeq.at(" << i << ") : " << strDeq.at(i) << endl; 
    cout << endl; 
 
    strDeq.pop_front(); 
    strDeq.pop_back(); 
 
    copy(strDeq.begin(),strDeq.end(), 
        ostream_iterator<string>(cout," ")); 
    cout << endl; 
    cout << endl; 
 
    for(int i = 1;i < strDeq.size();++i) 
        strDeq[i] = "pre" + strDeq[i]; 
    copy(strDeq.begin(),strDeq.end(), 
        ostream_iterator<string>(cout," ")); 
    cout << endl; 
    cout << endl; 
 
    strDeq.resize(4,"resized string"); 
 
    copy(strDeq.begin(),strDeq.end(), 
        ostream_iterator<string>(cout," ")); 
    cout << endl; 
    cout << endl; 
} 
#include <iostream>
#include <deque>
#include <string>
#include <algorithm>

using namespace std;

int main()
{
 deque<string> strDeq;

 strDeq.assign(4,string("CHINA"));
 strDeq.push_back("first_string");
 strDeq.push_front("last_string");

 copy(strDeq.begin(),strDeq.end(),
  ostream_iterator<string>(cout," "));
 cout << endl;
 cout << endl;

 for(int i = 0;i < strDeq.size();++i)
  cout << "strDeq[" << i << "] : " << strDeq[i] << endl;
 cout << endl;
 
 for(int i = 0;i < strDeq.size();++i)
  cout << "strDeq.at(" << i << ") : " << strDeq.at(i) << endl;
 cout << endl;

 strDeq.pop_front();
 strDeq.pop_back();

 copy(strDeq.begin(),strDeq.end(),
  ostream_iterator<string>(cout," "));
 cout << endl;
 cout << endl;

 for(int i = 1;i < strDeq.size();++i)
  strDeq[i] = "pre" + strDeq[i];
 copy(strDeq.begin(),strDeq.end(),
  ostream_iterator<string>(cout," "));
 cout << endl;
 cout << endl;

 strDeq.resize(4,"resized string");

 copy(strDeq.begin(),strDeq.end(),
  ostream_iterator<string>(cout," "));
 cout << endl;
 cout << endl;
}