0_0_39579438_22501.cpp 0_0_39579438_22501.cpp(4) : error C3861: “gets”: 找不到标识符 0_0_39579438_22501.cpp(5) : error C3861: “strlen”: 找不到标识符 0_0_39579438_22501.cpp(16) : error C3861: “printf”: 找不到标识符