0_0_14740733_4145.cpp 0_0_14740733_4145.cpp(51) : error C2872: “count”: 不明确的符号 可能是“0_0_14740733_4145.cpp(7) : int count” 或 “VC2013\INCLUDE\xutility(3086) : iterator_traits<_Iter>::difference_type std::count(_InIt,_InIt,const _Ty &)”