mycc.cpp

C++作业 完成一些简单的图形及其输入输出的功能 对于大学本科生做课程设计又很大帮助

#include<iostream.h>
#include<fstream.h>
#include<stdlib.h>
#include<string.h>
#include<stdio.h>
#include<iomanip.h>
char* filename(long account,int a);
long CreatNum(int a);
int operate(int a,long account,double money);
class Account
{
  public:
    Account(long account,double balan,int times);
 
    static Account* pFirst;

    void Display(int a);
    int write(int a);
   // char* getTime();
    //int write(int a,int times);
  protected:
    static int guest;
    double balance;
    long accountNum;
    double domoney;
   Account* pNext;
    int times;
    
};

//-------------------------------------------------------------------------------------------------
 //                            account.cpp
 

/*char*Account::getTime()
{
 struct timeb tb;
 cout<<"time is ";
 ftime(&tb);
 char* str=ctime(&tb.time);
 cout<<str;
 } */

int Account::guest=0;
Account* Account::pFirst=NULL;
Account::Account(long account,double balan,int time)
 {
  accountNum=account;
  balance=balan;
  times=time;
  //domoney=money;
  guest++;
  //把新建的对象加入到链表的最后
  if(!pFirst)
    pFirst=this;
  else
    {//Account* ps;
     for(Account* ps=pFirst;ps->pNext;ps=ps->pNext);
     ps->pNext=this;cout<<&ps;
    }
  pNext=0;
 }


 int Account::write(int a)
 {char cha[100];
  char* s=filename(accountNum,a);
  strcpy(cha,s); int b;
  ofstream ofile(cha);
  if(!ofile)
    {cerr<<"wrong!can't open the file!";
     b=0;
    }
  else
    {char ch[100];
     ofile<<accountNum<<" "<<balance<<" "<<times<<endl;
     ofile.close();
     ofile.open(cha,ios::app);
     {if(!ofile)
       cerr<<"wrong!";
     else
       ofile<<setiosflags(ios::left)
	    <<setw(6)<<times<<setw(20)<<domoney<<setw(20)<<balance<<endl;
     b=1;
     }
     /*while(!file)
     ifile.getline(ch,sizeof(ch));
     ifile<<times<<" "<<domoney<<" "<<balance<<" "<<endl;
     ifile.close();*/
    }
    
    return b;
 }



 void Account::Display(int a)
 {
  long account;char one[100];
  double balan;
  int time;
  char cha[100];
  char* s=filename(accountNum,a);
  strcpy(cha,s);
  ifstream ifile(cha);  //打开记录的文件
  /*if(!ifile)
   cerr<<"wrong!can't open the file!";
  else
    {long account;char one[100];
     double balan;
     int time;
     ifile>>account>>balan>>time;
     cout<<account<<" "<<balan<<" "<<time<<endl;
     while(strcmp(one,"printed")&&(!ifile.eof()))
      {ifile>>one;cout<<one;}
     while(!ifile.eof())
       {
	ifile>>one;cout<<one;
       }

     ofstream ofile(cha,ios::app);
     if(!ofile)
      cerr<<"wrong 10!";
     else
      ofile<<"printed";
     ofile.close();*/
     if(!ifile)
      cerr<<"cant open the file \n";
     else
      {
       ifile>>account>>balan>>time;
       cout<<endl<<"account:"<<account<<endl<<"your balane is "<<balan<<",this is you "
		 <<time<<"  times come to our bank.";
       cout<<endl;
	 /* while(!ifile.eof())
	 {ifile>>one;
	 if(!strcmp(one,"printed"))
	  break;
	 //cout<<one;
	 }*/
       cout<<endl<<setiosflags(ios::left)<<setw(6)<<"times"
	   <<setw(20)<<"domoney"<<setw(20)<<"balance";
       while(!ifile.eof())
       {char ch;
	ifile.get(ch);
	cout<<ch;//<<"  ";
       }

       ofstream ofile(cha,ios::app);
       if(!ofile)
	cerr<<"wrong 10!";
       else
	ofile<<"printed"<<"  ";
       ofile.close();
    }
}



//------------------------------------------------------------------------
 //                          saveget.h

 class SaveGet:public Account
 {
  public:
   SaveGet(long account,double balan,int time);
   int save(double money);
   int get(double money);
   double getBalance();
  protected:

 };


//-------------------------------------------------------------------------------


                             
 SaveGet::SaveGet(long account,double money,int time):Account(account,money,time)
 {
 }
 int SaveGet::save(double money)
 {balance+=money; int b;
  times++;
  domoney=money;

  if(write(1))
   {//cout<<"write succeed!";
   Display(1);
   b=1;
   }
  else
   {balance-=money;
    times--;
    domoney=money;
    cout<<"write fallen!";b=0;
   }
  return b;
 }



 int SaveGet::get(double money)
 {
  int b;
  if(money>balance)
   {cerr<<"you have not enough money in your account!\n";
    b=0;
   }
  else
  {
  balance-=money;

  times++;
  domoney=money;
  if(write(2))
   {//cout<<"\nwrite succeed!";
    b=1;
    Display(2);
   }
  else
    {balance+=money;
     times--;
     domoney=money;
     cout<<"\nwrite fallen!";b=0;
    }
  }
  return b;
  }
double SaveGet::getBalance()
{return balance;
}





//------------------------------------------------------------------------------
//                lentrepay.h
class LentRepay:public Account
{
 public:
  LentRepay(long account,double balan,int time);
  int lent(double money);
  int repay(double money);
 protected:

 };



//----------------------------------------------------------------------------------
//                                lentrepay.cpp

LentRepay::LentRepay(long account,double balan,int time):Account(account,balan,time)
 {
  
 }
 int LentRepay::lent(double money)
 { int b;

  balance+=money;
  times++;
  domoney=money;
  if(write(3))
   {//cout<<"\nwrite succeed!";
    b=1;
    Display(3);
   }
  else
   {
    balance-=money; times--;
    domoney=0;
    cout<<"\n write fallen!"; b=0;
   }

  return b;
  }



 int LentRepay::repay(double money)
 {int b;
  if(money>balance)
   {cerr<<"you repay money more than you lent\n";
   b=0;
   }
  else
  {
  balance-=money;
  times++;
  domoney=money;
  if(write(3))
   {//cout<<"\nwrite succeed!";
    b=1;
    Display(4);
   }
  else
   {
    balance+=money; times--;
    domoney=0;
    cout<<"\nwrite fallen!"; b=0;
   }
  }
  return b;
 }






//char* filename(long account,int a);
//long CreatNum(int a);




int operate(int a,long account,double money)
 {
   int b;
   char cha[100];
   char*ch=filename(account,a);
   strcpy(cha,ch);
   ifstream ifile(cha);
   if(!ifile)
    {cerr<<"\nthe account number isn't exit!\n";
     return 0;
    }
   else
    {double balan;
     int time;
     ifile>>account>>balan>>time;
     //cout<<account<<"  "<<balan<<"  "<<time<<endl;

     if(a==1)
      { SaveGet static did(account,balan,time);
	b=did.save(money);
      }
     if(a==2)
      {SaveGet static did(account,balan,time);
      b=did.get(money);
      }
     if(a==3)
      {LentRepay  static did(account,balan,time);
      b=did.lent(money);
      }
     if(a==4)
      {LentRepay static did(account,balan,time);
      b=did.repay(money);
      }
     // cout<<"b is:"<<b;
   }
  return b;
}


//-----------------------------------------------------------------------------------------------
char* filename(long account,int a)
{
 char cha[100];
 ofstream ofile("test.txt");
 if(!ofile)
   return NULL;
 else
   {
    switch(a)
    {
     case 1:ofile<<"saveget"<<"\\"<<"\\"<<account<<".txt";   break;
     case 2:ofile<<"saveget"<<"\\"<<"\\"<<account<<".txt";   break;
     case 3:ofile<<"repay"<<"\\"<<"\\"<<account<<".txt"; break;
     case 4:ofile<<"repay"<<"\\"<<"\\"<<account<<".txt"; break;
    }

    ofile.close();
    ifstream ifile;
    ifile.open("test.txt");
    if(!ifile)
     {
      cerr<<"can't open the test.txt";
      return NULL;
     }
    else    
     ifile.getline(cha,sizeof(cha));//cout<<cha;
   }
  return cha;//cout<<cha<<"done";
}


//--------------------------------------------------------------------
 long CreatNum(int a)
 { long account,accountcp;
  if(a!=1&&a!=3)
    exit(1);
  else
   {
   char ch[100];
   char* str=filename(1,a);
   strcpy(ch,str); // cout<<ch<<endl;

   ifstream ifile(ch);
   if(!ifile)
      {//cerr<<"can not open the 1.txt";
       ofstream ofile(ch);
       if(!ofile)
	 cerr<<"can't creat the file 1.txt\n";
       else
       {ofile<<1000000;
       ofile.close();
       }
      }
   ifile.close();
   ifile.open(ch);
   if(!ifile)
     cerr<<"wrong";
   else
   {ifile>>account;
   //cout<<endl<<account;
   }

   ofstream ofile(ch);
   if(!ofile)
    { cerr<<"can not open the recent.txt\n";exit(1);
     }
   else
    ofile<<(account+1);
    ofile.close();

   //
   char cha[100];
   accountcp=account;
   
   //创建一个帐号的记录文件
   char*s=filename(account,a);
   strcpy(cha,s);
   
   ofile.open(cha);
   double balan=0;
   int time=0;
   if(!ofile)
    cerr<<"wrong!";
   else
    ofile<<accountcp<<"   "<<balan<<"   "<<time<<endl;
   }
  return account;

}



//-----------------------------------------------------------------------------------
void main()
{
   cout<<"\nwelcome to use the sofeware!\n";
   CHOOSE:cout<<"\n\n1,save money;\n"
	      <<"2,get money;\n"
	      <<"3,lent money;\n"
	      <<"4,repay money;\n"
	      <<"5,exit;\n";
	      //<<"6,assist function;\n";
	  cout<<"your choose is:";
	  int a;
	  cin>>a;
	  if(a<=0||a>5)
	    {
	     cout<<"you type wrong!";
	     goto CHOOSE;
	     }
	  if(a==5)
	    exit(0);
	  /*if(a==6)
	   {
	    cerr<<"1,seach the account;\n"
		<<"2,;\n";
	    } */
	  cerr<<"\nplease input your account number (type 0 to creat account number):";
	  long account;
	  cin>>account;

	  if(!account)
	   { account=CreatNum(a);
	    cout<<"congratuation! creat account number succeed !\nyour account is:"<<account;
	   }
	  switch(a)
	  {
	   case 1:cout<<"\nplease input how much money you want to save:"; break;
	   case 2:cout<<"\nplease input how much money you want to get:"; break;
	   case 3:cout<<"\nplease input how much money you want to lent:"; break;
	   case 4:cout<<"\nplease input how much money you want to repay:"; break;
	  }
	  double money;
	  cin>>money;
	  int judge=operate(a,account,money);
	  if(!judge)
	    cerr<<"\noperate fallen!";
	  else
	    cerr<<"\noperate succeed!";
	  goto CHOOSE;  

}