执行下列程序的输出结果是______:
#include<iostream>
using namespace std;
class TestClass1
public:
void fun1()cout<<"TestClass1\n";
virtual void fun2()cout<<"TestClass1\n";
;
class TestClass2:public TestClass1
public:
void fun1()cout<<"TestClass2\n";
void fun2()cout<<"TestClass2\n";
;
void f(TestClass1&b)<b.fun1();b.fun2();
int main()
TestClass2 obj;
f(obj);
return 0;