0_0_14006267_15492.cpp 0_0_14006267_15492.cpp(18) : error C2065: “i”: 未声明的标识符 0_0_14006267_15492.cpp(19) : error C2065: “i”: 未声明的标识符 0_0_14006267_15492.cpp(20) : error C2065: “i”: 未声明的标识符