0_0_17415760_16349.cpp 0_0_17415760_16349.cpp(13) : error C2062: 意外的类型“int” 0_0_17415760_16349.cpp(54) : error C2065: “u”: 未声明的标识符 0_0_17415760_16349.cpp(57) : error C2065: “u”: 未声明的标识符 0_0_17415760_16349.cpp(59) : error C2065: “u”: 未声明的标识符