0_0_33151898_24143.cpp 0_0_33151898_24143.cpp(34) : error C3861: “scanf”: 找不到标识符 0_0_33151898_24143.cpp(36) : error C3861: “printf”: 找不到标识符 0_0_33151898_24143.cpp(37) : error C3861: “printf”: 找不到标识符