顺序容器之间的拷贝

#include <iostream>#include <vector>#include <list>#include <string>using namespace std;int main(){    list<int> ilst(5,4);    vector<int> ivc(5,5);    //form list<int> to vector<double>    vector<double> dvc(ilst.begin(),ilst.end());    for(auto i : ilst)        cout<<i<<" ";    cout<<endl;    for(auto i : dvc)        cout<<i<<" ";    cout<<endl;    //form vector<int> to vector<double>    vector<double> dvc2(ivc.begin(),ivc.end());    for(auto i : ivc)        cout<<i<<" ";    cout<<endl;    for(auto i : dvc2)        cout<<i<<" ";    cout<<endl;}