c++递归地输出vector的内容

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

using Iter = vector<string>::iterator;

void printStr(Iter beg, Iter end){
    if(beg != end){
        cout << *beg << endl;
        printStr(beg + 1, end);
    }
}

int main(){
    vector<string> str={"aa", "bb", "cc"};
    printStr(str.begin(), str.end());
    return 0;
}