执行下列程序的输出结果是______：
#include＜iostream＞
using namespacestd;
class TestClassl
public:
void funl()cout＜＜"TestClassl\n";
virtual void fun2() cout＜＜"TestClassl\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);
retum 0;