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C++算术运算符

试试下面的例子就明白了所有在C++中可用的算术运算符。

复制下面的C++程序并粘贴到test.cpp 文件编译并运行此程序。

#include <iostream>
using namespace std;
 
main()
{
   int a = 21;
   int b = 10;
   int c ;
 
   c = a + b;
   cout << "Line 1 - Value of c is :" << c << endl ;
   c = a - b;
   cout << "Line 2 - Value of c is  :" << c << endl ;
   c = a * b;
   cout << "Line 3 - Value of c is :" << c << endl ;
   c = a / b;
   cout << "Line 4 - Value of c is  :" << c << endl ;
   c = a % b;
   cout << "Line 5 - Value of c is  :" << c << endl ;
   c = a++; 
   cout << "Line 6 - Value of c is :" << c << endl ;
   c = a--; 
   cout << "Line 7 - Value of c is  :" << c << endl ;
   return 0;
}

让我们编译和运行上面的程序,这将产生以下结果:

Line 1 - Value of c is :31
Line 2 - Value of c is  :11
Line 3 - Value of c is :210
Line 4 - Value of c is  :2
Line 5 - Value of c is  :1
Line 6 - Value of c is :21
Line 7 - Value of c is  :22