迭代器種類：
迭代器中copy() and insert iterators
//inserts.cpp copy() and insert iterators
#include<iostream>
#include<string>
#include<iterator>
#include<vector>
#include<algorithm>
using namespace std;
void output(const string &s)
{
cout<<s<<" ";
}
int main()
{
string s1[4] = {"fine","fish","fashion","fate"};
string s2[2] = {"busy","bats"};
string s3[2] = {"silly","singers"};
vector<string> words(4);
copy(s1,s1+4,words.begin());
for_each(words.begin(),words.end(),output);
cout<<endl;
copy(s2,s2+2,back_insert_iterator<vector<string>>(words));
for_each(words.begin(),words.end(),output);
cout<<endl;
copy(s3,s3+2,insert_iterator<vector<string>>(words,words.begin()));
for_each(words.begin(),words.end(),output);
cout<<endl;
return 0;
}結果
fine fish fashion fate fine fish fashion fate busy bats silly singers fine fish fashion fate busy bats