Yeni başlayanlar Özel Hesap Mekinesi By LoLoo

            #include <cstdlib>                                                                                         #include <iostream>                                                                                  
#include <string>

#include <stdio.h>
#include "conio.h"
cout << "***********************************\n";
    cout << "*     HESAP MAKINASI V.01         *\n";
    cout << "*                                 *\n";                           
    cout << "*    TOPLAMA ISLEMI ICIN [+]      *\n";
    cout << "*    CIKARMA ISLEMI ICIN [-]      *\n";
    cout << "*    CARPMA  ISLEMI ICIN 
[*]      *\n";
    cout << "*    BOLME   ISLEMI ICIN [/]      *\n";
    cout << "*         [By Emircan Uye         *\n";
    cout << "*                                 *\n";
    cout << "***********************************\n\n\n";
    
    float sayi1,sayi2,sonuc;
    char islem;
    cout << "**********************\n";
    cout << "*1. Sayiyi giriniz : ";
    cin >> sayi1;
    
    
    cout << "*Islemi giriniz : ";
    cin >> islem;
    
    cout << "*2. Sayiyi giriniz : ";
    cin >> sayi2;
    
    switch (islem)
    {
     case '+':
           sonuc = (sayi1+sayi2);
           cout << "*Toplama sonucu : "<<sonuc<<endl;
          cout << "**********************\n";break;
     case '-':
         sonuc = (sayi1-sayi2);
         cout << "*Cikarma sonucu : "<<sonuc<<endl;
         cout << "**********************\n";break;
    case '*':
         sonuc = (sayi1*sayi2);
         cout << "*Carpma sonucu : "<<sonuc<<endl;
         cout << "**********************\n";break;
    case '/':
         sonuc = (sayi1/sayi2);
         cout << "*Bolme sonucu : "<<sonuc<<endl;
         cout << "**********************\n";break;
    default:
            cout << "Islemler +,-,*,/ isaretleri ile belirtilmistir\nmalesef yanlis islem isareti girdiniz.!\n";
    
    
    }                              
     
     
     cout << "\n\n**************************************\n";
     cout << "*By [Emircan Uye yazilim...          *";
     cout <<"\n*BIZI SECDIGINIZ ICIN TESEKKUR EDERIZ*";
     cout <<"\n**************************************\n";