以下程序执行后的输出结果是 ( )。 #include <iostream.h> class Basel { public:void fun(){ cout<<"Basel"<<end1; } }; class Base2 { public:void fun() { cout<<"Base2"<<end1; } } class Derived : public Basel,public Base2 { }; void main() {Derived Obj;Obj.fun(); }
A.Basel
B.Base2
C.BaselBase2
D.程序产生二义性