c++ 容器元素填充（fill）

#include <iostream>     // cout
#include <algorithm>    // fill
#include <vector>       // vector
using namespace std;
int main () {
    vector<int> myvector ();                       // myvector: 0 0 0 0 0 0 0 0

    fill (myvector.begin(),myvector.begin()+,);   // myvector: 5 5 5 5 0 0 0 0
    fill (myvector.begin()+,myvector.end()-,);   // myvector: 5 5 5 8 8 8 0 0

    cout << "myvector contains:";
    for (vector<int>::iterator it=myvector.begin(); it!=myvector.end(); ++it)
        cout << ' ' << *it;
    cout << '\n';

    return ;
}