C++ Tutorial/Language Basics/Introduction

Материал из C\C++ эксперт
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Calculating with integer constants

#include <iostream>                       
using std::cout;
using std::endl;
int main() {  
  cout << 1 + 2               << endl;  
  cout << 1 - 5                << endl;  
  cout << 1 - 2               << endl;  
  cout << 1 * 2               << endl;  
  cout << 1/3                  << endl;  
  cout << 1  3                << endl;  
  cout << 1  -3               << endl;  
  cout << -1  3               << endl;  
  cout << -1  -3              << endl;  
  cout << 1 + 2/1 - 5        << endl;  
  cout << (1 + 2)/(1 - 5)    << endl;  
  cout << 1 + 2/(1 - 5)      << endl;  
  cout << (1 + 2)/1 - 5      << endl;  
  cout << 4*5/3 + 7/3         << endl;  
  return 0;                               
}
3
-4
-1
2
0
1
1
-1
-1
-2
0
1
-2
4

This is a simple C++ program

#include <iostream> 
using namespace std; 
 
 
int main() 
{ 
  cout << "www.java2s.com"; 
 
  return 0; 
}
www.java2s.com"

Using the assignment operator

#include <iostream>              
using std::cout;
using std::endl;
int main() {
  int a = 10;
  int b = 6;
  int c = 3;
  int d = 4;
  int f = (a + b)/(c + d);
  cout << f ;
  return 0;
}
2

Working with integer variables

#include <iostream>            
using std::cout;
using std::endl;
int main() {  
  int a = 10;             
  int b = 3;            
  cout << a/b;
  cout << a  b;
  return 0;                    
}
31
Источник — «http://cppe.ru/index.php?title=C%2B%2B_Tutorial/Language_Basics/Introduction&oldid=2651»