0_0_28295471_1238.cpp 0_0_28295471_1238.cpp(33) : error C2065: “i”: 未声明的标识符 0_0_28295471_1238.cpp(35) : error C2065: “i”: 未声明的标识符 0_0_28295471_1238.cpp(38) : error C2065: “c”: 未声明的标识符