0_0_38297585_21405.cpp 0_0_38297585_21405.cpp(9) : error C2065: “i”: 未声明的标识符 0_0_38297585_21405.cpp(11) : error C2065: “i”: 未声明的标识符 0_0_38297585_21405.cpp(12) : error C2065: “i”: 未声明的标识符