0_0_38832265_28244.cpp 0_0_38832265_28244.cpp(4) : error C2065: “EOF”: 未声明的标识符 0_0_38832265_28244.cpp(4) : error C3861: “scanf”: 找不到标识符 0_0_38832265_28244.cpp(4) : fatal error C1903: 无法从以前的错误中恢复;正在停止编译