vector容器的使用

容器元素的类型必须能够支持赋值和比较运算符。如果当前容器装满了元素，系统会为它分配双倍于当前容量的存储空间。

#include <iostream>
#include <vector>
using namespace std;

int main(void)
{
  vector<int> a(10);
  vector <char> c(10,'0');
  int b[8] = {0,1,2,3,4,5,6,7};
  vector <int> d(b+2,b+4);        //包含两个元素
  vector <int>::iterator iter = d.begin();
  vector<int>::iterator iter_end = d.end();
  for(;iter != iter_end; ++iter)
    cout<<iter[0]<<"or"<<*iter<<endl;
  for(int i = 0; i< 10; ++i)
    a.push_back(1);
  a.insert(a.begin(),5,1);
  cout<<a.size()<<endl;
  cout<<a[3]<<endl;
  iter = a.begin();
  iter_end = a.end();
  for(;iter != iter_end; ++iter)
    cout<<*iter;

  return 0 ;
}