求两个数字之和（c++）

#include<iostream>
int main()
{
 std::cout <<"Enter two numbers:"<<std::endl;
 int v1=0,v2=0;
 std::cin >> v1 >> v2;
 std::cout << "the sum of " << v1 << " and " << v2 << " is " << v1+v2<<std::endl;
  return 0;
}