saving.h

教学目的： 要求理解继承的本质含义以及在面向对象技术中的重要性

#ifndef savings
  #define savings
#include "account.h"

class Savings:public Account
{
public:
	Savings(unsigned accNo,float balan=0.0);
	virtual void Withdrawal(float amount);
protected:
	static float minbalance;
};
#endif