Visual C++ 错误集合
mt.exe:general error c101008a: Failed to save the updated manifest to the file ".\Debug\CalculatorCore.dll.embed.manifest".
点class view中的工程,选右鍵,再点clean就可以了; 或者是 build->clean solusion
warning LNK4104: export of symbol 'DllCanUnloadNow' should be PRIVATE
DllCanUnloadNow @1 PRIVATE