0_0_27037243_30594.cpp 0_0_27037243_30594.cpp(18) : error C2065: “i”: 未声明的标识符 0_0_27037243_30594.cpp(19) : error C2065: “x”: 未声明的标识符 0_0_27037243_30594.cpp(19) : error C2065: “i”: 未声明的标识符 0_0_27037243_30594.cpp(20) : error C2065: “i”: 未声明的标识符