0_0_14037842_7805.cpp 0_0_14037842_7805.cpp(39) : error C2065: “n”: 未声明的标识符 0_0_14037842_7805.cpp(40) : error C2065: “n”: 未声明的标识符 0_0_14037842_7805.cpp(41) : error C2065: “n”: 未声明的标识符 0_0_14037842_7805.cpp(71) : error C3861: “floy”: 找不到标识符