大家帮我看看这个关于继承的程序错在哪里，谢谢了

[Impr]

#include <iostream.h>
#include <string.h>
class Advisor
{
int ffff;
};

class Student
{
public:
Student(char *pname,int x)
{
strcpy(name,pname);
a=x;
aver=seme==0;
}
void Add(int hour,float grade)
{
aver=seme*aver+grade;
seme+=hour;
aver/=seme;
}
void Display()
{
cout<<"aver="<<aver<<
cout<<"name: "<<name<<
cout<<"a= "<<a<<endl;
}
protected:
char name[54];
int a;
int seme;
float aver;

};

class Grade:public Student
{
public:
int wax()
{
return aaaa;
}
protected:
int aaaa;
int ffff;
};

int main()
{
Student ds("randy",123456);
ds.Add(3,2.5);
ds.Display();
Grade df;
df.Add(3,3.0);
df.Display();
return 0;
}

[無_1024]

class Grade
没有构造函数

[無_1024]

这样的话就没办法初始化基类的构造函数 因为你的student基类没有默认构造函数

[無_1024]

#include <iostream.h>
#include <string.h>
class Advisor
{
	int ffff;
};

class Student
{
public:
	Student(char *pname,int x)
	{
		strcpy(name,pname);
		a=x;
		seme = 0;
		aver = 0.0L;
	}
	void Add(int hour,float grade)
	{
		aver=seme*aver+grade;
		seme+=hour;
		aver/=seme;
	}
	void Display()
	{
		cout<<"aver="<<aver<<   
			cout<<"name: "<<name<<   
			cout<<"a= "<<a<<endl;
	}
protected:
	char name[54];
	int a;
	int seme;
	float aver;
	
};

class Grade:public Student
{
public:
	Grade(char *pname,int x,int aa = 0,int ff = 0):Student(pname,x)
	{
		aaaa = aa;
		ffff = ff;
	}
	int wax()
	{
		return aaaa;
	}
protected:
	int aaaa;
	int ffff;
};

int main()
{
	Student ds("randy",123456);
	ds.Add(3,2.5);
	ds.Display();
	Grade df("randy",123456);
	df.Add(3,3.0);
	df.Display();
	return 0;
}

[Impr]

我该怎样更正，能举个添加的例子吗？

[Impr]

谢谢了

[CrazyFirst]

想请问大侠：“怎么输出结果前有0x00432418啊？这根cout函数有什么关系？这样的输出有什么用啊？