0_0_35642530_14928.cpp 0_0_35642530_14928.cpp(28) : error C2065: “ma”: 未声明的标识符 0_0_35642530_14928.cpp(32) : error C2065: “ma”: 未声明的标识符 0_0_35642530_14928.cpp(34) : error C2065: “ma”: 未声明的标识符