0_0_19783967_20194.cpp 0_0_19783967_20194.cpp(23) : error C2065: “d”: 未声明的标识符 0_0_19783967_20194.cpp(30) : error C3861: “max”: 找不到标识符 0_0_19783967_20194.cpp(36) : error C3861: “max”: 找不到标识符 0_0_19783967_20194.cpp(38) : error C2065: “d”: 未声明的标识符