0_0_27037300_18955.cpp 0_0_27037300_18955.cpp(18) : error C2065: “i”: 未声明的标识符 0_0_27037300_18955.cpp(20) : error C2065: “i”: 未声明的标识符 0_0_27037300_18955.cpp(21) : error C2065: “i”: 未声明的标识符