test4-7（银行系统用组织函数）

程序：

/** Copyright(c)2013,*All right reserved.*文件名称：test4-7.cpp*作    者：徐驰*完成日期：2013-12-05*版 本 号：v1.1**输入描述：指令*问题描述：银行系统用组织函数*程序输出：服务项目*问题分析：略*算法分析：略*/#include<iostream>#include<cstdlib> using namespace std;void password();void work();void drop_out();void search(double sum);double withdrawals(double sum);double deposit(double sum);double transfer(double sum);  void main(){    cout<<"欢迎存钱~~~"<<endl;password();work();}void password(){int pass_num=0;      long pass;while(1)      {          cout<<"请输入密码：";          cin>>pass;          if(pass==123456)break;          cout<<"输入错误请重新输入。"<<endl;          pass_num++;          if(pass_num==3)          {              cout<<"the system has been destroied... "<<endl;              exit(1);          }      }}void work(){int num;double sum=10000;while(1)      {          cout<<"请输入指令："<<endl;          cout<<"*  1.查询"<<endl;              cout<<"*  2.取款"<<endl;              cout<<"*  3.存款"<<endl;            cout<<"*  4.转账"<<endl;            cout<<"*  0.退出"<<endl;              cout<<"*  请输入（0-4）：";          cin>>num;          switch(num)          {              case 0:drop_out();break;             case 1:search(sum);break;              case 2:sum=deposit(sum);break;             case 3:sum=withdrawals(sum);break;              case 4:sum=transfer(sum);break;              default :cout<<"try it again~~~"<<endl<<endl;          }      }}void drop_out(){cout<<"欢迎下次存钱~~~"<<endl;exit(1);}void search(double sum){cout<<"您的余额为："<<sum<<endl<<endl;}double withdrawals(double sum){double sum1;int type,time,level;cout<<"请输入金额：";cin>>sum1;cout<<"请输入类型(0.活期；1.定期)：";cin>>type;sum=sum+sum1;if(type){cout<<"请输入时间(以月为单位)：";cin>>time;level=(time>=3)+(time>=6)+(time>=12)+(time>=24)+(time>=36)+(time>=60);switch(level){case 0:cout<<"到期本金："<<sum<<"利息："<<sum*time/12.0*0.005;break;case 1:cout<<"到期本金："<<sum<<"利息："<<sum*time/12.0*0.031;break;case 2:cout<<"到期本金："<<sum<<"利息："<<sum*time/12.0*0.033;break;case 3:cout<<"到期本金："<<sum<<"利息："<<sum*time/12.0*0.035;break;case 4:cout<<"到期本金："<<sum<<"利息："<<sum*time/12.0*0.044;break;case 5:cout<<"到期本金："<<sum<<"利息："<<sum*time/12.0*0.05;break;case 6:cout<<"到期本金："<<sum<<"利息："<<sum*time/12.0*0.055;break;}}else{cout<<"您的余额为："<<sum;}cout<<endl<<endl;return sum;}double deposit(double sum){double sum1;while(1){cout<<"请输入金额：";cin>>sum1;if(sum1<=sum){cout<<"余额："<<sum-sum1;break;}else{cout<<"余额不足，请重新输入。";}}cout<<endl<<endl;return sum-sum1;}double transfer(double sum){double sum1;while(1){cout<<"请输入金额：";cin>>sum1;if(sum1<=sum){cout<<"余额："<<sum-sum1;break;}else{cout<<"余额不足，请重新输入。";}}cout<<endl<<endl;return sum-sum1;}

结果：