0_0_14151226_12822.cpp 0_0_14151226_12822.cpp(18) : error C3861: “input”: 找不到标识符 0_0_14151226_12822.cpp(19) : error C3861: “longAdd”: 找不到标识符 0_0_14151226_12822.cpp(21) : error C3861: “print”: 找不到标识符