简单STL

#include <iostream>#include <vector>#include <iterator>using namespace std;int main(){    vector<int>ivec;    int i;    for(i=0;i<5;i++)        ivec.push_back(i);    for(i=0;i<5;i++)        cout<<ivec[i]<<" ";    cout<<endl;    while(!ivec.empty())    {        cout<<ivec.back()<<" ";        ivec.pop_back();    }    cout<<endl;    for(i=0;i<5;i++)        cout<<ivec[i]<<" ";    cout<<endl;    copy(ivec.begin(),ivec.end(),ostream_iterator<int>(cout," "));    cout<<endl;    cout<<"size="<<ivec.size()<<endl;    return 0;}