Making all for tool Programe...Compiling file Programe.m ...Linking tool Programe ..../obj/Programe.obj/Programe.m.o:(.data.rel+0x20):对‘__objc_class_name_Tire’未定义的引用./obj/Programe.obj/Programe.m.o:(.data.rel+0x28):对‘__objc_class_name_Engine’未定义的引用collect2: error: ld returned 1 exi...