程序完成后的执行结果为：90
#include
#include
using namespace std;

class Student
{
private:
string name;
int score;
public:
Student(string n)
{
name=n;
}
________（1）__________
{
score=s;
}
int getScore()
{
return score;
}
int averageScore(Student stu)
{
_________（2）_________
}
};
int main()
{
Student stu1('tom'),stu2('jerry');
stul.setScore(100);
stu2.setScore(80);
cout< < stul.averageScore(stu2);
return 0;
}