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#include <iostream>
using namespace std;
class base
{
public:
virtual void foo() { cout << "base" << endl; }
base() { foo() ;}
};
class derive: public base
{
public:
derive() { foo(); }
virtual void foo() { cout << "derive" << endl; }
};
int main()
{
derive d;
return 0;
}

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base
derive
class base(object):
def __init__( self ):
self.foo()
def foo( self ):
print "base"
class derive( base ):
def __init__( self ):
super( derive , self ).__init__()
self.foo()
def foo( self ):
print "derive"
d = derive()

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derive
derive


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