0_0_33093783_3558.cpp 0_0_33093783_3558.cpp(5) : error C3861: “scanf”: 找不到标识符 0_0_33093783_3558.cpp(8) : error C3861: “scanf”: 找不到标识符 0_0_33093783_3558.cpp(12) : error C3861: “scanf”: 找不到标识符 0_0_33093783_3558.cpp(16) : error C3861: “printf”: 找不到标识符