1014851_0_0_17179.c 1014851_0_0_17179.c(11) : error C2143: 语法错误 : 缺少“;”(在“类型”的前面) 1014851_0_0_17179.c(12) : error C2065: “i” : 未声明的标识符 1014851_0_0_17179.c(14) : error C2065: “x” : 未声明的标识符 1014851_0_0_17179.c(15) : error C2065: “sum” : 未声明的标识符