0_0_14016257_19869.cpp 0_0_14016257_19869.cpp(21) : error C2065: “i”: 未声明的标识符 0_0_14016257_19869.cpp(23) : error C2065: “i”: 未声明的标识符 0_0_14016257_19869.cpp(26) : error C2065: “i”: 未声明的标识符 0_0_14016257_19869.cpp(30) : error C2065: “i”: 未声明的标识符