C++ 向量 中的 rend()函数

reverse_iteratorritr=v.rend();

#include <iostream>  
#include<vector>  
using namespace std;  
int main()  
{  
vector<int> v{1,2,3,4,5};  
vector<int>::reverse_iterator ritr;  
for(ritr=v.rbegin();ritr!=v.rend();ritr++)  
std::cout<< *ritr<<" ";  
return 0;  
}  

#include <iostream>
#include<vector>
using namespace std;
int main()
{
vector<string> v{"Computer science","electronics","electrical","mechanical"};
vector<string>::reverse_iterator ritr;
vector<string>::iterator itr;
std::cout<<"Strings are :";
for(itr=v.begin();itr!=v.end();itr++)
cout<<*itr<<", ";
cout<<'\n';
cout<<"Reverse strings are :";
for(ritr=v.rbegin();ritr!=v.rend();ritr++)
cout<<*ritr<<", ";
return 0;
}