我在Stroustrup网站上包含了std_lib。我的代码是：
#include "c:\Users\theresmineusername\Documents\Visual Studio 2017\std_lib_facilities.h"
int main()
{
cout << "Hello, World!\n";
return 0;
}
所以我有两个错误：
1. E1574 ??????????? ?????????? ?? ??????? ?? ??????? "<hash_map> is deprecated and will be REMOVED. Please use <unordered_map>. You can define _SILENCE_STDEXT_HASH_DEPRECATION_WARNINGS to acknowledge that you have received this warning." ConsoleApplication2 c:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.10.24930\include\hash_map
2. C2338 <hash_map> is deprecated and will be REMOVED. Please use <unordered_map>. You can define _SILENCE_STDEXT_HASH_DEPRECATION_WARNINGS to acknowledge that you have received this warning. ConsoleApplication2 c:\program files (x86)\microsoft …