类与对象1

#include<iostream>
using namespace std;
enum Level1{FRESHMAN,SOPHOMORE,JUNIOR,SENIOR
};
enum Grade{A,B,C,D
};
class Student{
public:
Student(unsigned number,Level level,Grade grade)
: number(number),level(level),grade(grade){}
void show();
private:
unsigned number:27;
Level level:2;
Grade grade:2;
};
void Student::show(){
cout<<"Number: "<<number<<endl;
cout<<"Level: ";
switch(level){
case FRESHMAN: cout<<"freeshman";break;
case SOPHOMORE: cout<<"sophomore";break;
case JUNIOR: cout<<"junior";break;
case SENIOR: cout<<"senior";break;
}
cout<<endl;
cout<<"Grade: ";
switch(grade){
case A:cout<<"A";break;
case B:cout<<"B";break;
case C:cout<<"C";break;
case D:cout<<"D";break;
}
cout<<endl;
}
int main(){
Student s(12345678,SOPHOMORE,B);
cout<<"Size of Student:"<<sizeof(Student)<<endl;
s.show();
return 0;
}