0_0_36307874_19280.cpp 0_0_36307874_19280.cpp(31) : error C2065: “sx;”: 未声明的标识符 0_0_36307874_19280.cpp(31) : error C2146: 语法错误: 缺少“;”(在标识符“e”的前面) 0_0_36307874_19280.cpp(31) : error C2065: “sy;”: 未声明的标识符