0_0_35031876_21273.cpp 0_0_35031876_21273.cpp(28) : error C2065: “i”: 未声明的标识符 0_0_35031876_21273.cpp(30) : error C2065: “i”: 未声明的标识符 0_0_35031876_21273.cpp(59) : error C2065: “i”: 未声明的标识符