根据C++最新标准,要想在 main() 函数中使用语句 std::cout << std::string("Aloha World!") << "\n"; cout << "Welcome to C++!"s << endl; // C++14 字符串字面量,包含在特殊的名字空间中正确地在屏幕上输出信息,需要在 main() 函数前面加上哪些语句?(不考虑编码规范,仅仅保证编译正确)
A、#include <iostream> #include <string> using namespace std; using namespace std::string_literals;
B、#include <iostream> #include <string> using std::cout; using std::endl; using namespace std::string_literals;
C、#include <iostream> #include <string> using namespace std;
D、#include <iostream> #include <string> #include <string_view> using namespace std::string; using namespace std::string_literals;
E、#include <iostream> #include <string> #include <string_view> using std::string; using namespace std::string_literals;