银行系统改进版

原创于 2012-11-21 15:13:38 发布 · 969 阅读

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本文介绍了一个简易银行系统的实现，包括密码验证、查询余额、取款、存款等功能。通过C++编程语言，展示了基本的用户交互流程。

#include <iostream>
#include <cmath>
const password=123456;
using namespace std;
bool pass();
void showbalance();
void work();
void zz();
void qk();
void ck();
double huankuan() ;
void chioce();
int main()
{
    cout<<'\t'<<'\t'<<'\t'<<'\t'<<" 王氏银行欢迎您! "<<endl;
	if(pass()==true)
	{
		work();
	}
	else
	{
	cout<<"请到柜台办理密码业务再来使用!  谢谢! "<<endl;
	}
    return 0;
}
bool pass()
{
    int i=1,pass;
	bool k=false;
    do{
        cout<<"请输入密码："<<endl;
        cin>>pass;
        i++;
        if(pass==password){
            k=true;
        }
        else
		{	k=false; 
			continue;
		}
	 if(k)
	   return true;
   else
	   return false;
    }while(i<4);
  
}
void chioce()
{
   cout<<"***请您选择服务内容:"<<endl;
   int i;
   char cChioce;
   void chaxun();
   void qukuan();
   void cunkuan();
   void zhuanzhang();
		cout<<"*  1. 查询"<<endl;
		cout<<"*  2. 取款"<<endl;
		cout<<"*  3. 存款"<<endl;
		cout<<"*  4. 转账"<<endl;
		cout<<"*  5. 还款"<<endl;
		cout<<"*  0. 退出"<<endl;
		cout<<"*  请选择（0-5）：";
		cin>>cChioce;
		if (cChioce=='1')
			showbalance();
		else if (cChioce=='2')
		    qk();
		else if (cChioce=='3')
			 ck();
        else if (cChioce=='4')
             zz();
		else if (cChioce=='5')
			 huankuan();
		else if (cChioce=='0')
		{
		    cout<<endl<<endl;
			cout<<"***"<<"欢迎您下次光临！"<<endl<<endl;
		}


}
void showbalance()
{
	cout<<"您的余额是9999999999元 。"<<endl;
}
void work()
{
	chioce();
}

double huankuan()  
{  
double principal,rate,payPerYear,numYears,e,b,denom,payment,number;          
cout<<"请输入本金:";  
cin>>principal;  
cout<<"请输入当前利率:";  
cin>>rate;    
       cout<<"请输入还款年限:";    
       cin>>numYears;    
       cout<<"请输入每年偿还贷款的次数:";    
       cin>>payPerYear;    
  number=rate*principal/payPerYear;                 
e=-(payPerYear*numYears);  
b=(rate/payPerYear)+1;  
denom=1-pow(b,e);  
payment=number/denom;  
cout<<"Payment is :"<<payment<<endl;             
return 0;  
} 

void zz()
{
	int numb,money;
	cout<<"请输入转账的银行卡卡号："<<endl;
	cin>>numb;
	cout<<"请输入转款额度："<<endl;
	cin>>money;
	cout<<"由于操作错误，你的资金将被扣留!"<<endl;
}
void ck()
{
	int my;
	cout<<"请输入存款额度："<<endl;
	cin>>my;
	cout<<"由于机器故障，你的现金已经被吞没，请自认倒霉!"<<endl;
}
void qk()
{ 
	int money;
	cout<<"请输入取款金额："<<endl;
	cin>>money;
	cout<<"请验钞，谢谢使用!"<<endl;
}