account.cpp

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

#include"account.h"

Account* Account::pFirst=0;//链表为空
int Account::count=0;      //帐户个数为0

Account::Account(unsigned accNo,float balan)
{
	acntNumber=accNo;
	balance=balan;
	pNext=0;

	count++;
	if(pFirst==0)
		pFirst=this;//空链表中插入一个
	else
	{
		Account* pS=pFirst;
		for(;pS->pNext;pS=pS->pNext);
		pS->pNext=this;//插入本结点
	}
	pNext=0;//本结点为最后一个结点
}
unsigned Account::AccountNo()
{
	return acntNumber;
}
float Account::AcntBalan()
{
	return balance;
}
Account* Account::First()
{
	return pFirst;
}
Account* Account::Next()
{
	return pNext;
}
int Account::NoAccounts()
{
	return count;
}
void Account::Display()
{
	cout<<"Account  number:"<<acntNumber<<"="<<balance<<endl;
}
void Account::Deposit(float amount)
{
	balance+=amount;
}
void Account::Withdrawal(float amount)
{
	return;//不做任何事
}