demo_namespace_head1.hpp

对于一个初涉VC＋＋的人来书

//****************************************************

# include <string>
# include <cmath>

using namespace std;

class Student
{
public:
	Student(int n,string nam,int a)
	{
		num=n;name=nam;age=a;
	}
	void get_data();
private:
	int num;
	string name;
	int age;
};

void Student::get_data()
{
	cout<<num<<" "<<name<<" "<<age<<endl;
}

double fun(double a,double b)
{
	return sqrt(a+b);
}