warning:include path for libstdc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
Build Settings -> C++ Standard Library
将 libstdc++ 改为 libc++
warning:include path for libstdc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
Build Settings -> C++ Standard Library
将 libstdc++ 改为 libc++