自测题1道

看到这样一样题，想想就简单的写了写自测一下，还是有很多收获。
需求：
1.模拟银行，客户关系封装类；
2.客户到银行办理业务需先排队；
3.银行根据队列处理业务，优选选择金卡客户；
4.办理建卡、存款、取钱、销户业务。

代码思路：
1.定义银行类，客户类，队列类；
2.思考现实实例，银行、队列只能有一个实例，客户可以有多个实例
3.理清类关系，银行依赖于队列决定客户，银行依赖客户数据处理业务，队列依赖客户排队
4.确定主导类为银行类，主要的业务逻辑在银行
 
Debug收获：
1.前向声明的类，只能用它的成员指针（之前没有注意这个问题） 
2.对象传递尽量用指针，如果用返回值传递只能用堆内存

需要优化问题：
1.类的private封装，账户数据结构过于简单
2.银行客户账户数据存储用的是数组，可以用STL
3.银行账号，直接累加，可随机，要确保唯一
4.代码清晰易读，代码业务流程简化

 

#include <iostream>#include <stdio.h>#include <string>using namespace std;//常量宏#define QUEUE_LONGTH_MAX 50#define CARD_SUM_MAX 10000#define GOLDEN_SUM_LIMIT 888#define ILLEGAL_VALUE 0xffff//日志宏#define log_info(...) do {\printf("<%s %s> %s %s:%d INFO:",__DATE__, __TIME__,__FUNCTION__,__FILE__,__LINE__)&&\printf(__VA_ARGS__)&&\printf("\n");\}while(0)//类声明class CserviceQueue;class Cbank;class Ccustomer;class CserviceQueue;enum CARDTYPE{  OrdinaryCard, //普卡  GoldenCard    //金卡};//业务种类enum SERVICE{  registerCard,  deposite,  query,  withdraw,  cancelCard };//银行账户struct sbankCustomerAccount{  int card_Number;  int id_Customer;  char* name;  int moneySum;  int cardType;  };//客户卡信息struct sCard{  int card_Number;  int cardType;  };//排队队列节点struct sRegisterNode{  int num;  Ccustomer *customer;   sRegisterNode *next;    };//客户类class Ccustomer{public:  Ccustomer():queueNo(0),customerBankCard(NULL)  {  }  //需要处理业务信息  void my_service(int id, char* name, int money, SERVICE ser)  {    customer_id = id;    customer_name = name;    customer_money = money;    service = ser;  }  //delete掉自己的卡， customerBankCard在Cbank类中new  void destoryCard()  {    delete customerBankCard;    customerBankCard = NULL;  }    ~Ccustomer()  {    if(NULL!=customerBankCard)    {      delete customerBankCard;      customerBankCard = NULL;    }  }    int customer_id;    char * customer_name;    int customer_money;  SERVICE service;    sCard *customerBankCard;  int queueNo;     };//排号队列类class CserviceQueue{public:  CserviceQueue():dealNumber(0),totalNumber(0)  {     head = tail = NULL;  }  //排队  int registerQueue(Ccustomer *customer)      {      if(totalNumber>QUEUE_LONGTH_MAX)    {      log_info("The queue is full ...");      return false;    }    p=new sRegisterNode;    p->num=dealNumber;    dealNumber++;    totalNumber++;    p->customer = customer;    p->next=NULL;    if (head==NULL)    {      head=tail=p;    }    else    {      tail->next=p;      tail=p;    }    return p->num;  }  //读取队列数据，优选读金卡  Ccustomer* readQueue()  {    if(NULL != head)    {      pOrdinary = head;        while(NULL != pOrdinary)      {     //客户还没有建卡        if (NULL != (pOrdinary->customer)->customerBankCard)        {          //读金卡          if (GoldenCard ==((pOrdinary->customer)->customerBankCard->cardType))          {            return pOrdinary->customer;          }        }//如果没有金卡，依次读队列    pOrdinary = pOrdinary->next;      }      return head->customer;    }  return NULL;  }  //获取队列信息  void queueInfo()  {    pInfo = head;    while(NULL != pInfo)    {      log_info("The left queue number: %d", pInfo->num);      pInfo = pInfo->next;    }      log_info("Deal num amount %d, left num amount %d", dealNumber, totalNumber);  }    //删除队列节点  sRegisterNode *deleteData(int value)  {    sRegisterNode *p,*q;    p = head;//队列为NULL    if (head == NULL)                            {log_info("List is NULL");        return head;    }//与传入值不等，继续遍历    while ((p->next!=NULL)&&(p->num!=value))         {    q=p;    p=p->next;    }    if (value==p->num)    {      if(head==p)      {    //头结点与传入值相等      head=p->next;                              }      else           //中间节点与传入值相等        q->next=p->next;                                 totalNumber--;      delete p;    }    else log_info("Number: %d is not in the queue", value);    return head;  }        ~CserviceQueue()  {    while(NULL != head)    {      delete head;      head = NULL;      head = head->next;    }    }    private:  sRegisterNode *head,*tail,*p, *pOrdinary, *pInfo;    int dealNumber;//当前处理号  int totalNumber;//当前队列总共号};//银行类class Cbank{public:  Cbank():card_amount(0),customer_card(NULL)  {       //初始化客户所有账号数组 memset(bank_card, ILLEGAL_VALUE, sizeof(bank_card));  }  //处理业务  void dealService(Ccustomer* customer)  {    switch(customer->service)    {  //建卡业务      case registerCard:        if(GOLDEN_SUM_LIMIT<(customer->customer_money))        {   //钱多，建金卡          customer->customerBankCard=newCard(customer->customer_id, customer->customer_name, customer->customer_money, GoldenCard);         }        else        {          customer->customerBankCard=newCard(customer->customer_id, customer->customer_name, customer->customer_money, OrdinaryCard);         }        //customerInfoCheck(customer->customerBankCard->card_Number);      break;          //查询业务      case query:          customerInfoCheck(customer->customerBankCard->card_Number);      break;        //存钱      case deposite:        depositMoney(customer->customerBankCard->card_Number, customer->customer_money);        //customerInfoCheck(customer->customerBankCard->card_Number);      break;        //取钱      case withdraw:        withdrawMoney(customer->customerBankCard->card_Number, customer->customer_money);        //customerInfoCheck(customer->customerBankCard->card_Number);      break;        //销卡      case cancelCard:            cancelBankCard(customer->customerBankCard->card_Number, customer->customer_money);    customer->destoryCard();    log_info("Bank card has been cancelled");      break;            default:log_info("Wong service !");      break;    }  }    //银行获取队列客户  Ccustomer* deal_queue_order(CserviceQueue *queue)  {    return  queue->readQueue();  }  //办卡   sCard* newCard(int id_Customer, char* name, int moneySum, int cardType)  {    bool flag = idCheck(id_Customer);    if(flag)    {      //客户卡      customer_card = new sCard;            customer_card->card_Number = card_Number;      customer_card->cardType = cardType;      //银行内部卡      bank_card[card_Number].card_Number = card_Number;        bank_card[card_Number].id_Customer = id_Customer;      bank_card[card_Number].name = name;      bank_card[card_Number].moneySum = moneySum;      bank_card[card_Number].cardType = cardType;            card_Number++;      card_amount++;            return customer_card;    }    return false;  }    //存钱  void depositMoney(int card_Number,int moneySum)  {    bool flag = cardCheck(card_Number);    if(flag)    {      bank_card[card_Number].moneySum += moneySum;    }  }  //取钱  void withdrawMoney(int card_Number,int moneySum)  {    bool flag = cardCheck(card_Number);    if(flag)    {      if(moneySum>bank_card[card_Number].moneySum)      {        log_info("Card: %d don't have enough money, just withdraw the money you have: %d", card_Number, bank_card[card_Number].moneySum);        bank_card[card_Number].moneySum = 0;      }      else      {        bank_card[card_Number].moneySum -= moneySum;      }    }  }    //销卡  void cancelBankCard(int card_Number,int moneySum)  {    bank_card[card_Number].id_Customer = ILLEGAL_VALUE;bank_card[card_Number].card_Number = ILLEGAL_VALUE;bank_card[card_Number].name = NULL;bank_card[card_Number].moneySum = ILLEGAL_VALUE;bank_card[card_Number].cardType = ILLEGAL_VALUE;card_amount--;  }    //查询  void customerInfoCheck(int card_Number)  {    bool flag = cardCheck(card_Number);    if(flag)    {      cout<<"==========================================================="<<endl;      cout<<"customer "<<bank_card[card_Number].name <<" info: "<<endl;      cout<<"card number: "<<bank_card[card_Number].card_Number<<endl;      cout<<"id: "<<bank_card[card_Number].id_Customer<<endl;        cout<<"money: "<<bank_card[card_Number].moneySum<<endl;      cout<<"type: "<<bank_card[card_Number].cardType<<endl;      cout<<"==========================================================="<<endl;    }  }      //根据客户id检查是否已经有卡  bool idCheck(int id_Customer)  {        for(int i = 0;i<card_amount;i++)    {      if(id_Customer==bank_card[i].id_Customer)      {            log_info("Customer id: %d exist, don't need a card", id_Customer);        return false;      }    }    log_info("Customer id: %d can register a new card", id_Customer);    return true;  }    //检查卡是否存在  bool cardCheck(int card_Number)  {        for(int i = 0;i<card_amount;i++)    {      if(card_Number==bank_card[i].card_Number)      {            return true;      }    }    log_info("Card %d not exist, need register a new card", card_Number);    return false;  }  //查询银行卡信息  void getBankInfo()  {    log_info("The max card number %d, there have %d customer",card_Number, card_amount);  }    ~Cbank()  {  }    private:  sbankCustomerAccount bank_card[CARD_SUM_MAX];  sCard *customer_card;    int card_Number;    int card_amount;};int main(){    //初始化银行，队列  Cbank *bank = new Cbank;   CserviceQueue *queue = new CserviceQueue;    //初始化2个客户，Lemon和Kevin    Ccustomer *Lemon =new Ccustomer;     Ccustomer *Kevin =new Ccustomer;   //2人想办理的业务都是建卡  Lemon->my_service(888, "Lemon", 999, registerCard);    Kevin->my_service(999,"Kevin", 500, registerCard);    //排队，获取 号  Lemon->queueNo = queue->registerQueue(Lemon);   Kevin->queueNo = queue->registerQueue(Kevin);       //银行读队列找到客户，处理业务，删除已处理队列数据   Ccustomer *dealCustomer=bank->deal_queue_order(queue);   bank->dealService(dealCustomer);                         queue->deleteData(dealCustomer->queueNo);                 //下一个处理  dealCustomer=bank->deal_queue_order(queue);  bank->dealService(dealCustomer);  queue->deleteData(dealCustomer->queueNo);  //再次想办理业务，挂号  Lemon->my_service(888, "Lemon", 0, query);    Kevin->my_service(999, "Kevin", 100, deposite);       Kevin->queueNo = queue->registerQueue(Kevin);  Lemon->queueNo = queue->registerQueue(Lemon);    //注意噢，先挂号的是Kevin,但是先处理的是Lemon,因为他是金卡客户  dealCustomer=bank->deal_queue_order(queue);  bank->dealService(dealCustomer);  queue->deleteData(dealCustomer->queueNo);  dealCustomer=bank->deal_queue_order(queue);  bank->dealService(dealCustomer);  queue->deleteData(dealCustomer->queueNo);  //销卡  Kevin->my_service(999, "Kevin", 0, cancelCard);      Kevin->queueNo = queue->registerQueue(Kevin);  dealCustomer=bank->deal_queue_order(queue);  bank->dealService(dealCustomer);  queue->deleteData(dealCustomer->queueNo);  //取钱  Lemon->my_service(888, "Lemon", 9999, withdraw);    Lemon->queueNo = queue->registerQueue(Lemon);  dealCustomer=bank->deal_queue_order(queue);  bank->dealService(dealCustomer);  queue->deleteData(dealCustomer->queueNo);    //信息查询    queue->queueInfo();  bank->getBankInfo();  delete Lemon;  delete Kevin;  delete bank;  delete queue;  return 1;}