0_0_14971320_16714.c 0_0_14971320_16714.c(3) : error C2065: “i”: 未声明的标识符 0_0_14971320_16714.c(5) : error C2065: “i”: 未声明的标识符 0_0_14971320_16714.c(7) : error C2065: “i”: 未声明的标识符