std::wstring からPlatform::String へ
std::wstring s1 = L"文字列"; //Platform::String ^s2; Platform::String ^s3 = ref new Platform::String(s1.c_str() ); Platform::String ^s4{ ref new Platform::String(s1.c_str()) };
Platform::Stringから std::wstringへ
Platform::String ^s10{L"文字列"};
std::wstring s11 = s10->Data();
std::wstring s12{ s10->Data() };