老大们 就这点分了！！！！！！！！！救命！！
using System;
using System.Collections.Generic;
using System.Text;
namespace Wrox.ProCSharp
{
public interface IBankAccount
{
void PayIn(decimal amount); //存款的方法
bool Withdraw(decimal amount); //判断是否余款不足
decimal Balance //返回余款的属性
{
get;
}
}
public interface ITransferBankAccount : IBankAccount
{
bool TransferTo(IBankAccount destination, decimal amount);
}
public class CurrentAccount : ITransferBankAccount
{
private decimal balance;
public void PayIn(decimal amount)
{
balance += amount;
}
public bool Withdraw(decimal amount)
{
if (balance > = amount)
{
balance -= amount;
return true;
}
Console.WriteLine( "转帐失败 ");
return false;
}
public decimal Banlance
{
get
{
return balance;
}
}
public bool TransfertTo(IBankAccount destination, decimal amount)
{
bool result;
if ((result = Withdraw(amount))==true)
{
destination.PayIn(amount);
return result;
}
}
public override string ToString()
{
return String.Format( "Jupiter Bank Current Account: Balance = {0,6:C} ", balance);
}
}
class MainEntryPoint
{
static void Main()
{
IBankAccount venusAccount = new SaverAccount(); //以上已经详细说明表示他们可以指向实现这些接口的任何方法
ITransferBankAccount jupiterAccount = new CurrentAccount();
venusAccount.PayIn(200);
jupiterAccount.PayIn(500);
jupiterAccount.TransferTo(100);
Console.WriteLine(venusAccount.ToString());
Console.WriteLine(jupiterAccount.ToString());
}
}
}
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错误：
错误1“Wrox.ProCSharp.CurrentAccount”不会实现接口成员“Wrox.ProCSharp.ITransferBankAccount.TransferTo(Wrox.ProCSharp.IBankAccount, decimal)”C:\Documents and Settings\Administrator\桌面\Chap4_Sample\bank_zhuanzhang\Class1.cs2118bank_zhuanzhang
错误2“Wrox.ProCSharp.CurrentAccount”不会实现接口成员“Wrox.ProCSharp.IBankAccount.Balance”C:\Documents and Settings\Administrator\桌面\Chap4_Sample\bank_zhuanzhang\Class1.cs2118bank_zhuanzhang
------解决方案--------------------
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