推 mikearice:雖然我還是不會,不過謝謝你ㄌ 06/21 00:04
#include<iostream>
#include<string.h>
using namespace std;
class Account
{
private:
bool state;
int error;
double amount;
char nameaa[20];
int password;
public:
Account() //內鍵一個帳戶
{
char nameaab[20]="admin";
strcpy(nameaa,nameaab);
password=123;
amount=0;
error=0;
state=true;
}
Account(char* inameaa,int ipsw,double imoney,bool istate,
int ierror)
//USER建立帳戶
{
strcpy(nameaa,inameaa);
password=ipsw;
amount=imoney;
error=ierror;
state=istate;
}
void withdraw(double imoney) //領錢
{
if(check()) //確定帳戶內的錢夠領
{
if(amount>=imoney)
{
amount-=imoney;
cout<<"Withdraw "<<imoney<<endl;
}
else
{
cout<<"You don't have enough money to withdraw."<<endl;
//不夠領
}
}
}
void deposit(double imoney) //提款
{
if(check())
{
amount+=imoney; //amount=amount+money
cout<<"Deposit "<<imoney<<endl;
}
}
void query() //查餘額
{
if(check())
{
cout<<"Your money left: "<<amount<<endl;//顯示餘額
}
}
void changepassword() //改密碼
{
if(check())
{
int ipsw;
cout<<"Please enter your new password: ";//輸入新密碼
cin>>ipsw; //存入新密碼
password=ipsw;
cout<<"Password has been changed!"<<endl; //密碼已被更改
}
}
int check() //這大段是檢驗密碼程式
{
if(state==true) //計數器仍容許錯誤(還可輸入密碼)
{
int ipsw;
for(;state==true;)
{
cout<<"Please enter your password: ";
cin>>ipsw;
if(ipsw!=password)//若輸入的密碼錯誤，
{
error++; //將計數器+1
if(error>=3) //若計數器的值大於等於3，
{
cout<<"You have failed 3 times, the account is locked."<<endl;
state=false;//將帳戶鎖住
}
else
{
cout<<"Incorrect!!"<<endl;//USER嘗試錯誤
}
return 0; //密碼檢查失敗
}
error=0; //將對錯值歸零
return 1; //密碼檢查成功
}
}
else
{
cout<<"The account has been locked!!"<<endl;
return 0; //因為
STATE=FALSE 所以表示帳號已鎖 連檢查都不用檢查 就直接檢查失敗
}
}
};
void main()
{
char name[20];
int psw;
double amount;
int error;
cout<<"Please set your account name: ";
cin>>name;
cout<<"Please set your password: ";
cin>>psw;
cout<<"How much money do you want to put in your account? ";
cin>>amount;
cout<<"Please set times of error permitted: ";
cin>>error;
Account ac1;
Account ac2(name,psw,amount,true,error);
/*
Account ac1;
Account ac2(name,psw,amount,true,error);
改成
Account ac2;
這樣你前面不管 什麼
後面操作的都是ADMIN帳號
*/
int y;
double m;
for(;;) //無限次重複使用選單
{
cout<<"What do you want to do:(1.withdraw/2.deposit/3.query/
4.change password)";
cin>>y;
switch(y)
{
case 1:
cout<<"Amount you want to withdraw = ? ";
cin>>m;
ac2.withdraw(m);
break;
case 2:
cout<<" Amount you want to deposit = ? ";
cin>>m;
ac2.deposit(m);
break;
case 3:
ac2.query();
break;
case 4:
ac2.changepassword();
break;
}
}
}
--
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◆ From: 218.167.19.220
※ 編輯: loshihyen 來自: 218.167.19.220 (06/20 23:48)