demo_namespace_head2.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,char s)
	{
		num=n;name=nam;sex=s;
	}
	void get_data();
private:
	int num;
	string name;
	char sex;
};

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

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