阅读下列程序，写出运行结果： #include us

#include<iostream>
using namespace std;
void f();
class T
{
public:
T()
{
cout<<"constructor"<<endl;
try
  {
throw  "exception";
}
catch( char * )
  {
cout<<"exception1"<<endl;
}
throw  "exception";
}
~T()
{
cout<<"destructor";
}
};
int main()
{
cout<<"main function "<<endl;
   try
{
f();
}
   catch( char * )
{
cout<<"exception2"<<endl;
}
   cout<<"main function "<<endl;    
}
void f()
{  
T t;  
}